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wideband
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Label 7925 4800 2 50 ~ 0
LSU_Ip
Text Label 7925 4900 2 50 ~ 0
LSU_Vm
Text Label 7925 5100 2 50 ~ 0
LSU_Un
Text Label 7925 5000 2 50 ~ 0
LSU_Rtrim
Text Label 3150 3425 2 50 ~ 0
LSU_Ip
$Comp
L Device:R R10
U 1 1 5EB087E2
P 3225 3200
F 0 "R10" H 3295 3246 50 0000 L CNN
F 1 "61.9" H 3295 3155 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3155 3200 50 0001 C CNN
F 3 "~" H 3225 3200 50 0001 C CNN
F 4 "C23092" H 3225 3200 50 0001 C CNN "LCSC"
1 3225 3200
1 0 0 -1
$EndComp
Wire Wire Line
3225 3050 3225 2975
Wire Wire Line
3225 3350 3225 3425
Wire Wire Line
3225 3425 3150 3425
Text Label 4000 1100 2 50 ~ 0
LSU_Vm
Text Notes 2900 2750 0 50 ~ 0
Pump Current Sense
$Comp
L Device:R R2
U 1 1 5EB0FC27
P 1100 1525
F 0 "R2" H 1170 1571 50 0000 L CNN
F 1 "10k" H 1170 1480 50 0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1030 1525 50 0001 C CNN
F 3 "~" H 1100 1525 50 0001 C CNN
F 4 "C25744" H 1100 1525 50 0001 C CNN "LCSC"
1 1100 1525
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR03
U 1 1 5EB10275
P 1100 1675
F 0 "#PWR03" H 1100 1425 50 0001 C CNN
F 1 "GND" H 1105 1502 50 0000 C CNN
F 2 "" H 1100 1675 50 0001 C CNN
F 3 "" H 1100 1675 50 0001 C CNN
1 1100 1675
1 0 0 -1
$EndComp
Wire Wire Line
1100 1175 1100 1275
Wire Wire Line
1100 1275 1475 1275
Connection ~ 1100 1275
Wire Wire Line
1100 1275 1100 1375
Wire Wire Line
1475 1475 1400 1475
Wire Wire Line
1400 1475 1400 1650
Wire Wire Line
1400 1650 2150 1650
Wire Wire Line
2150 1650 2150 1375
Wire Wire Line
2150 1375 2075 1375
$Comp
L Device:C C1
U 1 1 5EB1294F
P 800 1525
F 0 "C1" H 915 1571 50 0000 L CNN
F 1 "1u" H 915 1480 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 838 1375 50 0001 C CNN
F 3 "~" H 800 1525 50 0001 C CNN
F 4 "C52923" H 800 1525 50 0001 C CNN "LCSC"
1 800 1525
1 0 0 -1
$EndComp
Wire Wire Line
800 1375 800 1275
Wire Wire Line
800 1275 1100 1275
$Comp
L power:GND #PWR01
U 1 1 5EB130B2
P 800 1675
F 0 "#PWR01" H 800 1425 50 0001 C CNN
F 1 "GND" H 805 1502 50 0000 C CNN
F 2 "" H 800 1675 50 0001 C CNN
F 3 "" H 800 1675 50 0001 C CNN
1 800 1675
1 0 0 -1
$EndComp
Text Notes 1600 925 0 50 ~ 0
Virtual Ground Generation
Text Label 4975 5850 3 50 ~ 0
LSU_Un
$Comp
L Device:C C2
U 1 1 5EB2AA98
P 4975 5700
F 0 "C2" V 4723 5700 50 0000 C CNN
F 1 "100n" V 4814 5700 50 0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5013 5550 50 0001 C CNN
F 3 "~" H 4975 5700 50 0001 C CNN
F 4 "C14663" H 4975 5700 50 0001 C CNN "LCSC"
1 4975 5700
-1 0 0 1
$EndComp
$Comp
L Device:R R6
U 1 1 5EB2AF2C
P 4975 5250
F 0 "R6" V 4768 5250 50 0000 C CNN
F 1 "20k" V 4859 5250 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4905 5250 50 0001 C CNN
F 3 "~" H 4975 5250 50 0001 C CNN
1 4975 5250
-1 0 0 1
$EndComp
Wire Wire Line
4975 5550 4975 5400
Text Notes 3525 4325 0 50 ~ 0
Nernst Internal Resistance Measurement
Text Notes 950 4450 0 50 ~ 0
Pump Ref Current - 20uA source
$Comp
L Device:R R11
U 1 1 5EB31C23
P 3925 3075
F 0 "R11" V 3825 3075 50 0000 C CNN
F 1 "10k" V 3925 3075 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3855 3075 50 0001 C CNN
F 3 "~" H 3925 3075 50 0001 C CNN
F 4 "C25744" H 3925 3075 50 0001 C CNN "LCSC"
1 3925 3075
0 1 1 0
$EndComp
$Comp
L Device:R R12
U 1 1 5EB335A9
P 3925 3275
F 0 "R12" V 4025 3275 50 0000 C CNN
F 1 "10k" V 3925 3275 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3855 3275 50 0001 C CNN
F 3 "~" H 3925 3275 50 0001 C CNN
F 4 "C25744" H 3925 3275 50 0001 C CNN "LCSC"
1 3925 3275
0 1 1 0
$EndComp
Wire Wire Line
4075 3075 4150 3075
Wire Wire Line
3775 3275 3500 3275
Wire Wire Line
3500 3275 3500 3425
Wire Wire Line
3500 3425 3225 3425
Connection ~ 3225 3425
Wire Wire Line
3225 2975 3500 2975
Wire Wire Line
3500 2975 3500 3075
Wire Wire Line
3500 3075 3775 3075
Connection ~ 3225 2975
$Comp
L Device:R R15
U 1 1 5EB37011
P 4150 3600
F 0 "R15" V 4075 3550 50 0000 L CNN
F 1 "100k" V 4150 3525 50 0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4080 3600 50 0001 C CNN
F 3 "~" H 4150 3600 50 0001 C CNN
F 4 "C25471" H 4150 3600 50 0001 C CNN "LCSC"
1 4150 3600
1 0 0 -1
$EndComp
Wire Wire Line
4150 3450 4150 3275
Connection ~ 4150 3275
Wire Wire Line
4150 3275 4075 3275
$Comp
L Device:R R17
U 1 1 5EB38FC0
P 4500 2800
F 0 "R17" V 4400 2800 50 0000 C CNN
F 1 "100k" V 4500 2800 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4430 2800 50 0001 C CNN
F 3 "~" H 4500 2800 50 0001 C CNN
F 4 "C25471" H 4500 2800 50 0001 C CNN "LCSC"
1 4500 2800
0 1 1 0
$EndComp
Wire Wire Line
4350 2800 4150 2800
Wire Wire Line
4150 2800 4150 3075
Connection ~ 4150 3075
Wire Wire Line
4650 2800 4900 2800
Wire Wire Line
4900 2800 4900 3175
Wire Wire Line
4900 3175 4800 3175
Text Label 5025 3175 0 50 ~ 0
Ip_sense
Wire Wire Line
5025 3175 4900 3175
Connection ~ 4900 3175
Text Notes 825 2450 0 50 ~ 0
Pump Driver
Text Label 1075 3075 2 50 ~ 0
Ip_dac
$Comp
L Device:R R8
U 1 1 5EB3C02D
P 2175 2975
F 0 "R8" V 1968 2975 50 0000 C CNN
F 1 "10" V 2059 2975 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2105 2975 50 0001 C CNN
F 3 "~" H 2175 2975 50 0001 C CNN
F 4 "C25077" H 2175 2975 50 0001 C CNN "LCSC"
1 2175 2975
0 1 1 0
$EndComp
Wire Wire Line
1900 2625 1150 2625
Wire Wire Line
1150 2625 1150 2875
Wire Wire Line
1150 2875 1225 2875
Wire Wire Line
1075 3075 1225 3075
$Comp
L Device:C C3
U 1 1 5EB3F97C
P 2425 3225
F 0 "C3" H 2540 3271 50 0000 L CNN
F 1 "100n" H 2540 3180 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2463 3075 50 0001 C CNN
F 3 "~" H 2425 3225 50 0001 C CNN
F 4 "C1525" H 2425 3225 50 0001 C CNN "LCSC"
1 2425 3225
1 0 0 -1
$EndComp
Wire Wire Line
2425 3075 2425 2975
Wire Wire Line
2425 2975 2325 2975
$Comp
L power:GND #PWR05
U 1 1 5EB40E1E
P 2425 3375
F 0 "#PWR05" H 2425 3125 50 0001 C CNN
F 1 "GND" H 2430 3202 50 0000 C CNN
F 2 "" H 2425 3375 50 0001 C CNN
F 3 "" H 2425 3375 50 0001 C CNN
1 2425 3375
1 0 0 -1
$EndComp
Text Label 3225 2975 2 50 ~ 0
LSU_Rtrim
Wire Wire Line
2425 2975 3225 2975
Connection ~ 2425 2975
$Comp
L power:+3.3V #PWR02
U 1 1 5EC0734A
P 1100 875
F 0 "#PWR02" H 1100 725 50 0001 C CNN
F 1 "+3.3V" H 1115 1048 50 0000 C CNN
F 2 "" H 1100 875 50 0001 C CNN
F 3 "" H 1100 875 50 0001 C CNN
1 1100 875
1 0 0 -1
$EndComp
$Comp
L Device:R R4
U 1 1 5EAE57CD
P 4300 1300
F 0 "R4" V 4200 1300 50 0000 C CNN
F 1 "10k" V 4300 1300 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4230 1300 50 0001 C CNN
F 3 "~" H 4300 1300 50 0001 C CNN
F 4 "C25744" H 4300 1300 50 0001 C CNN "LCSC"
1 4300 1300
0 -1 -1 0
$EndComp
$Comp
L Device:R R3
U 1 1 5EAE6382
P 4300 1100
F 0 "R3" V 4375 1100 50 0000 C CNN
F 1 "10k" V 4300 1100 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4230 1100 50 0001 C CNN
F 3 "~" H 4300 1100 50 0001 C CNN
F 4 "C25744" H 4300 1100 50 0001 C CNN "LCSC"
1 4300 1100
0 -1 -1 0
$EndComp
$Comp
L Device:R R7
U 1 1 5EAE6724
P 4950 825
F 0 "R7" V 5050 825 50 0000 C CNN
F 1 "27k" V 4950 825 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4880 825 50 0001 C CNN
F 3 "~" H 4950 825 50 0001 C CNN
F 4 "C25711" H 4950 825 50 0001 C CNN "LCSC"
1 4950 825
0 -1 -1 0
$EndComp
$Comp
L Device:R R5
U 1 1 5EAE6A5D
P 4300 1550
F 0 "R5" V 4400 1500 50 0000 L CNN
F 1 "27k" V 4300 1475 50 0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4230 1550 50 0001 C CNN
F 3 "~" H 4300 1550 50 0001 C CNN
F 4 "C25711" H 4300 1550 50 0001 C CNN "LCSC"
1 4300 1550
0 1 1 0
$EndComp
Wire Wire Line
4550 1550 4450 1550
Wire Wire Line
4650 1100 4550 1100
$Comp
L power:GND #PWR04
U 1 1 5EAEDFB7
P 4150 1550
F 0 "#PWR04" H 4150 1300 50 0001 C CNN
F 1 "GND" H 4155 1377 50 0000 C CNN
F 2 "" H 4150 1550 50 0001 C CNN
F 3 "" H 4150 1550 50 0001 C CNN
1 4150 1550
0 1 1 0
$EndComp
Wire Wire Line
4550 1100 4550 825
Wire Wire Line
4550 825 4800 825
Connection ~ 4550 1100
Wire Wire Line
4550 1100 4450 1100
Wire Wire Line
4000 1100 4150 1100
Wire Wire Line
5100 825 5350 825
Wire Wire Line
5350 825 5350 1200
Wire Wire Line
5350 1200 5250 1200
Wire Wire Line
4000 1300 4150 1300
Text Label 5475 1200 0 50 ~ 0
Un_sense
Wire Wire Line
5475 1200 5350 1200
Connection ~ 5350 1200
Text Notes 3800 900 0 50 ~ 0
Nernst Sense
Text Notes 3950 1825 0 50 ~ 0
Un_sense = 2.7 * (Un - Vm)
Text Notes 4300 3600 0 50 ~ 0
Ip_sense = 10 * (LSU_Ip - LSU_Rtrim)
Wire Wire Line
4050 3800 4150 3800
Wire Wire Line
4150 3800 4150 3750
Wire Wire Line
4450 1300 4550 1300
Wire Wire Line
4550 1550 4550 1300
Connection ~ 4550 1300
Wire Wire Line
4550 1300 4650 1300
$Comp
L Device:R R9
U 1 1 5EB371DE
P 2450 1375
F 0 "R9" V 2350 1375 50 0000 C CNN
F 1 "10" V 2450 1375 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2380 1375 50 0001 C CNN
F 3 "~" H 2450 1375 50 0001 C CNN
F 4 "C25077" H 2450 1375 50 0001 C CNN "LCSC"
1 2450 1375
0 1 1 0
$EndComp
Wire Wire Line
2300 1375 2150 1375
Connection ~ 2150 1375
Wire Wire Line
3025 1375 2900 1375
Text Label 2150 1375 0 50 ~ 0
Vm
Text Label 3025 1375 0 50 ~ 0
LSU_Vm
Text Label 4050 3800 2 50 ~ 0
Vm
$Comp
L Device:C C4
U 1 1 5EB43469
P 2900 1600
F 0 "C4" H 3015 1646 50 0000 L CNN
F 1 "1u" H 3015 1555 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2938 1450 50 0001 C CNN
F 3 "~" H 2900 1600 50 0001 C CNN
F 4 "C52923" H 2900 1600 50 0001 C CNN "LCSC"
1 2900 1600
1 0 0 -1
$EndComp
Wire Wire Line
2900 1450 2900 1375
Connection ~ 2900 1375
Wire Wire Line
2900 1375 2600 1375
$Comp
L power:GND #PWR08
U 1 1 5EB4A413
P 2900 1750
F 0 "#PWR08" H 2900 1500 50 0001 C CNN
F 1 "GND" H 2905 1577 50 0000 C CNN
F 2 "" H 2900 1750 50 0001 C CNN
F 3 "" H 2900 1750 50 0001 C CNN
1 2900 1750
1 0 0 -1
$EndComp
$Comp
L Connector_Generic:Conn_02x05_Odd_Even J1
U 1 1 5ECAA616
P 9675 1225
F 0 "J1" H 9725 1642 50 0000 C CNN
F 1 "Conn_02x05_Odd_Even" H 9725 1551 50 0000 C CNN
F 2 "Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD" H 9675 1225 50 0001 C CNN
F 3 "~" H 9675 1225 50 0001 C CNN
1 9675 1225
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR019
U 1 1 5ECABBC7
P 9475 1025
F 0 "#PWR019" H 9475 875 50 0001 C CNN
F 1 "+3.3V" H 9490 1198 50 0000 C CNN
F 2 "" H 9475 1025 50 0001 C CNN
F 3 "" H 9475 1025 50 0001 C CNN
1 9475 1025
0 -1 -1 0
$EndComp
$Comp
L power:GND #PWR017
U 1 1 5ECABF9C
P 9375 1475
F 0 "#PWR017" H 9375 1225 50 0001 C CNN
F 1 "GND" H 9380 1302 50 0000 C CNN
F 2 "" H 9375 1475 50 0001 C CNN
F 3 "" H 9375 1475 50 0001 C CNN
1 9375 1475
1 0 0 -1
$EndComp
Wire Wire Line
9375 1475 9375 1425
Wire Wire Line
9375 1125 9475 1125
Wire Wire Line
9475 1225 9375 1225
Connection ~ 9375 1225
Wire Wire Line
9375 1225 9375 1125
Wire Wire Line
9475 1425 9375 1425
Connection ~ 9375 1425
Wire Wire Line
9375 1425 9375 1225
Wire Wire Line
9975 1025 10275 1025
Wire Wire Line
9975 1125 10275 1125
Wire Wire Line
9975 1425 10275 1425
NoConn ~ 9475 1325
NoConn ~ 9975 1225
NoConn ~ 9975 1325
Text Label 10275 1025 2 50 ~ 0
SWDIO
Text Label 10275 1125 2 50 ~ 0
SWCLK
Text Label 10275 1425 2 50 ~ 0
nRESET
Text Label 5675 5050 0 50 ~ 0
heater_pwm
Wire Wire Line
1900 2975 1825 2975
Connection ~ 1900 2975
Wire Wire Line
1900 2975 1900 2625
Wire Wire Line
2025 2975 1900 2975
Text Label 4975 4375 3 50 ~ 0
Nernst_esr_drive
$Comp
L Device:C C8
U 1 1 5EE11FA8
P 8800 5900
F 0 "C8" H 8915 5946 50 0000 L CNN
F 1 "100n" H 8915 5855 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8838 5750 50 0001 C CNN
F 3 "~" H 8800 5900 50 0001 C CNN
F 4 "C1525" H 8800 5900 50 0001 C CNN "LCSC"
1 8800 5900
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR024
U 1 1 5EE1273E
P 8800 6050
F 0 "#PWR024" H 8800 5800 50 0001 C CNN
F 1 "GND" H 8805 5877 50 0000 C CNN
F 2 "" H 8800 6050 50 0001 C CNN
F 3 "" H 8800 6050 50 0001 C CNN
1 8800 6050
1 0 0 -1
$EndComp
Wire Wire Line
8800 5650 8800 5750
$Comp
L power:+5V #PWR023
U 1 1 5EE1C6FE
P 8800 5575
F 0 "#PWR023" H 8800 5425 50 0001 C CNN
F 1 "+5V" H 8800 5725 50 0000 C CNN
F 2 "" H 8800 5575 50 0001 C CNN
F 3 "" H 8800 5575 50 0001 C CNN
1 8800 5575
1 0 0 -1
$EndComp
Wire Wire Line
8800 5575 8800 5650
Connection ~ 8800 5650
$Comp
L Regulator_Linear:XC6206PxxxMR U9
U 1 1 5EE22A9A
P 9425 5650
F 0 "U9" H 9425 5892 50 0000 C CNN
F 1 "XC6206P332MR" H 9425 5801 50 0000 C CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 9425 5875 50 0001 C CIN
F 3 "https://www.torexsemi.com/file/xc6206/XC6206.pdf" H 9425 5650 50 0001 C CNN
F 4 "C5446" H 9425 5650 50 0001 C CNN "LCSC"
1 9425 5650
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR026
U 1 1 5EE2366B
P 9425 5950
F 0 "#PWR026" H 9425 5700 50 0001 C CNN
F 1 "GND" H 9430 5777 50 0000 C CNN
F 2 "" H 9425 5950 50 0001 C CNN
F 3 "" H 9425 5950 50 0001 C CNN
1 9425 5950
1 0 0 -1
$EndComp
Wire Wire Line
9125 5650 8800 5650
$Comp
L Device:C C10
U 1 1 5EE2E051
P 9825 5875
F 0 "C10" H 9940 5921 50 0000 L CNN
F 1 "4.7u" H 9940 5830 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 9863 5725 50 0001 C CNN
F 3 "~" H 9825 5875 50 0001 C CNN
F 4 "C19666" H 9825 5875 50 0001 C CNN "LCSC"
1 9825 5875
1 0 0 -1
$EndComp
Wire Wire Line
9825 5725 9825 5650
Wire Wire Line
9825 5650 9725 5650
$Comp
L power:GND #PWR027
U 1 1 5EE3397B
P 9825 6025
F 0 "#PWR027" H 9825 5775 50 0001 C CNN
F 1 "GND" H 9830 5852 50 0000 C CNN
F 2 "" H 9825 6025 50 0001 C CNN
F 3 "" H 9825 6025 50 0001 C CNN
1 9825 6025
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR028
U 1 1 5EE33CD0
P 9975 5575
F 0 "#PWR028" H 9975 5425 50 0001 C CNN
F 1 "+3.3V" H 9990 5748 50 0000 C CNN
F 2 "" H 9975 5575 50 0001 C CNN
F 3 "" H 9975 5575 50 0001 C CNN
1 9975 5575
1 0 0 -1
$EndComp
Wire Wire Line
9975 5575 9975 5650
Wire Wire Line
9975 5650 9825 5650
Connection ~ 9825 5650
Wire Wire Line
2200 5375 2100 5375
$Comp
L Device:R R18
U 1 1 5EF46DF7
P 2500 6625
F 0 "R18" V 2400 6625 50 0000 C CNN
F 1 "10k" V 2500 6625 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2430 6625 50 0001 C CNN
F 3 "~" H 2500 6625 50 0001 C CNN
F 4 "C25744" H 2500 6625 50 0001 C CNN "LCSC"
1 2500 6625
0 1 1 0
$EndComp
$Comp
L Device:R R21
U 1 1 5EF47F5F
P 3225 6625
F 0 "R21" V 3125 6625 50 0000 C CNN
F 1 "10k" V 3225 6625 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3155 6625 50 0001 C CNN
F 3 "~" H 3225 6625 50 0001 C CNN
F 4 "C25744" H 3225 6625 50 0001 C CNN "LCSC"
1 3225 6625
0 1 1 0
$EndComp
$Comp
L Device:R R20
U 1 1 5EF48856
P 3225 6150
F 0 "R20" V 3125 6150 50 0000 C CNN
F 1 "10k" V 3225 6150 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3155 6150 50 0001 C CNN
F 3 "~" H 3225 6150 50 0001 C CNN
F 4 "C25744" H 3225 6150 50 0001 C CNN "LCSC"
1 3225 6150
0 1 1 0
$EndComp
$Comp
L Device:R R19
U 1 1 5EF48C0D
P 2950 5850
F 0 "R19" V 2850 5850 50 0000 C CNN
F 1 "10k" V 2950 5850 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2880 5850 50 0001 C CNN
F 3 "~" H 2950 5850 50 0001 C CNN
F 4 "C25744" H 2950 5850 50 0001 C CNN "LCSC"
1 2950 5850
-1 0 0 1
$EndComp
Wire Wire Line
2800 6350 2950 6350
Wire Wire Line
2950 6350 2950 6625
Wire Wire Line
2950 6625 2650 6625
Wire Wire Line
3075 6150 2950 6150
Wire Wire Line
2950 6000 2950 6150
Connection ~ 2950 6150
Wire Wire Line
2950 6150 2800 6150
$Comp
L power:GND #PWR018
U 1 1 5EF61FFB
P 2950 5700
F 0 "#PWR018" H 2950 5450 50 0001 C CNN
F 1 "GND" H 2955 5527 50 0000 C CNN
F 2 "" H 2950 5700 50 0001 C CNN
F 3 "" H 2950 5700 50 0001 C CNN
1 2950 5700
-1 0 0 1
$EndComp
$Comp
L Device:R R22
U 1 1 5EF622BF
P 3625 5900
F 0 "R22" V 3525 5900 50 0000 C CNN
F 1 "10k" V 3625 5900 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3555 5900 50 0001 C CNN
F 3 "~" H 3625 5900 50 0001 C CNN
F 4 "C25804" H 3625 5900 50 0001 C CNN "LCSC"
1 3625 5900
-1 0 0 1
$EndComp
Wire Wire Line
3375 6150 3450 6150
Wire Wire Line
3625 6200 3625 6050
Wire Wire Line
2800 5275 2875 5275
Wire Wire Line
2350 6625 2100 6625
Wire Wire Line
2100 6625 2100 6250
Wire Wire Line
2100 6250 2200 6250
Text Label 5425 6200 2 50 ~ 0
LSU_Un
$Comp
L Device:R R14
U 1 1 5EF8C893
P 1750 5450
F 0 "R14" V 1650 5450 50 0000 C CNN
F 1 "3.3k" V 1750 5450 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1680 5450 50 0001 C CNN
F 3 "~" H 1750 5450 50 0001 C CNN
F 4 "C25890" H 1750 5450 50 0001 C CNN "LCSC"
1 1750 5450
-1 0 0 1
$EndComp
$Comp
L Device:R R13
U 1 1 5EF8D101
P 1750 4925
F 0 "R13" V 1650 4925 50 0000 C CNN
F 1 "51k" V 1750 4925 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1680 4925 50 0001 C CNN
F 3 "~" H 1750 4925 50 0001 C CNN
F 4 "C25794" H 1750 4925 50 0001 C CNN "LCSC"
1 1750 4925
-1 0 0 1
$EndComp
$Comp
L Device:C C5
U 1 1 5EF8DD96
P 1450 5425
F 0 "C5" H 1200 5525 50 0000 L CNN
F 1 "100n" H 1300 5325 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 1488 5275 50 0001 C CNN
F 3 "~" H 1450 5425 50 0001 C CNN
F 4 "C1525" H 1450 5425 50 0001 C CNN "LCSC"
1 1450 5425
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR015
U 1 1 5EF8E145
P 1750 5600
F 0 "#PWR015" H 1750 5350 50 0001 C CNN
F 1 "GND" H 1755 5427 50 0000 C CNN
F 2 "" H 1750 5600 50 0001 C CNN
F 3 "" H 1750 5600 50 0001 C CNN
1 1750 5600
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR013
U 1 1 5EF8E7FE
P 1450 5575
F 0 "#PWR013" H 1450 5325 50 0001 C CNN
F 1 "GND" H 1455 5402 50 0000 C CNN
F 2 "" H 1450 5575 50 0001 C CNN
F 3 "" H 1450 5575 50 0001 C CNN
1 1450 5575
1 0 0 -1
$EndComp
Wire Wire Line
1750 5075 1750 5175
Wire Wire Line
1450 5275 1450 5175
Wire Wire Line
1450 5175 1750 5175
Connection ~ 1750 5175
Wire Wire Line
1750 5175 1750 5300
Wire Wire Line
1750 5175 2200 5175
$Comp
L power:+3.3V #PWR014
U 1 1 5EFC56E5
P 1750 4775
F 0 "#PWR014" H 1750 4625 50 0001 C CNN
F 1 "+3.3V" H 1765 4948 50 0000 C CNN
F 2 "" H 1750 4775 50 0001 C CNN
F 3 "" H 1750 4775 50 0001 C CNN
1 1750 4775
1 0 0 -1
$EndComp
$Comp
L Device:C C6
U 1 1 5F661685
P 2400 5700
F 0 "C6" V 2350 5550 50 0000 C CNN
F 1 "3.3n" V 2350 5850 50 0000 C CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2438 5550 50 0001 C CNN
F 3 "~" H 2400 5700 50 0001 C CNN
F 4 "C26404" H 2400 5700 50 0001 C CNN "LCSC"
1 2400 5700
0 1 1 0
$EndComp
$Comp
L Device:R R16
U 1 1 5F6620CD
P 2100 5975
F 0 "R16" V 2000 5975 50 0000 C CNN
F 1 "10k" V 2100 5975 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2030 5975 50 0001 C CNN
F 3 "~" H 2100 5975 50 0001 C CNN
F 4 "C25744" H 2100 5975 50 0001 C CNN "LCSC"
1 2100 5975
-1 0 0 1
$EndComp
Wire Wire Line
2100 6125 2100 6250
Connection ~ 2100 6250
Wire Wire Line
2100 5825 2100 5700
Wire Wire Line
2250 5700 2100 5700
Connection ~ 2100 5700
Wire Wire Line
2100 5700 2100 5375
Wire Wire Line
2550 5700 2675 5700
Wire Wire Line
2675 5700 2675 5375
Wire Wire Line
2675 5375 2875 5375
Wire Wire Line
2875 5375 2875 5275
Connection ~ 2875 5275
$Comp
L Amplifier_Operational:MCP6004 U2
U 3 1 5F6C4F7C
P 2500 5275
F 0 "U2" H 2500 5642 50 0000 C CNN
F 1 "MCP6004" H 2500 5551 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 2450 5375 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 2550 5475 50 0001 C CNN
F 4 "C50282" H 2500 5275 50 0001 C CNN "LCSC"
3 2500 5275
1 0 0 -1
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U2
U 2 1 5F6C70E6
P 2500 6250
F 0 "U2" H 2500 6617 50 0000 C CNN
F 1 "MCP6004" H 2500 6526 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 2450 6350 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 2550 6450 50 0001 C CNN
F 4 "C50282" H 2500 6250 50 0001 C CNN "LCSC"
2 2500 6250
-1 0 0 -1
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U2
U 4 1 5F6C8103
P 4525 6625
F 0 "U2" H 4675 6875 50 0000 C CNN
F 1 "MCP6004" H 4700 6775 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 4475 6725 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 4575 6825 50 0001 C CNN
F 4 "C50282" H 4525 6625 50 0001 C CNN "LCSC"
4 4525 6625
-1 0 0 -1
$EndComp
Text Label 3900 6625 2 50 ~ 0
LSU_Un_sense
Wire Wire Line
3375 6625 3975 6625
Wire Wire Line
3450 5625 3625 5625
Wire Wire Line
3625 5625 3625 5750
Wire Wire Line
3450 5625 3450 6150
Wire Wire Line
3625 5625 3625 5275
Wire Wire Line
2875 5275 3625 5275
Connection ~ 3625 5625
Wire Wire Line
3975 6625 4050 6875
Wire Wire Line
4050 6875 4875 6875
Wire Wire Line
4875 6875 4875 6725
Wire Wire Line
4875 6725 4825 6725
Wire Wire Line
3975 6625 4225 6625
Wire Wire Line
4875 6525 4825 6525
Text Label 4000 1300 2 50 ~ 0
LSU_Un_sense
Text Notes 4075 6950 0 50 ~ 0
Nernst Sense Voltage Buffer
$Comp
L Amplifier_Operational:MCP6004 U1
U 2 1 5F8841DC
P 4950 1200
F 0 "U1" H 5100 1450 50 0000 C CNN
F 1 "MCP6004" H 5125 1350 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 4900 1300 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 5000 1400 50 0001 C CNN
F 4 "C50282" H 4950 1200 50 0001 C CNN "LCSC"
2 4950 1200
1 0 0 1
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U1
U 1 1 5F8980DF
P 1525 2975
F 0 "U1" H 1675 3225 50 0000 C CNN
F 1 "MCP6004" H 1700 3125 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 1475 3075 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 1575 3175 50 0001 C CNN
F 4 "C50282" H 1525 2975 50 0001 C CNN "LCSC"
1 1525 2975
1 0 0 1
$EndComp
Wire Wire Line
4200 3275 4150 3275
Wire Wire Line
4150 3075 4200 3075
$Comp
L Amplifier_Operational:MCP6004 U1
U 3 1 5F8996DF
P 4500 3175
F 0 "U1" H 4650 3425 50 0000 C CNN
F 1 "MCP6004" H 4675 3325 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 4450 3275 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 4550 3375 50 0001 C CNN
F 4 "C50282" H 4500 3175 50 0001 C CNN "LCSC"
3 4500 3175
1 0 0 1
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U1
U 4 1 5F8B9D88
P 1775 1375
F 0 "U1" H 1925 1625 50 0000 C CNN
F 1 "MCP6004" H 1950 1525 50 0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 1725 1475 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 1825 1575 50 0001 C CNN
F 4 "C50282" H 1775 1375 50 0001 C CNN "LCSC"
4 1775 1375
1 0 0 -1
$EndComp
Text Notes 3750 6025 0 50 ~ 0
Current\n<- Sense\n Resistor
Wire Wire Line
4975 5850 4975 6200
Text Notes 3575 7350 0 50 ~ 0
Place a guard ring around the LSU_Un node \nwith the buffered LSU_Un_sense node
Wire Wire Line
3075 6625 2950 6625
Connection ~ 2950 6625
Connection ~ 3975 6625
Wire Wire Line
4875 6525 4875 6200
Connection ~ 4875 6200
Wire Wire Line
4875 6200 4975 6200
Connection ~ 4975 6200
Wire Wire Line
4975 6200 5425 6200
Wire Wire Line
3625 6200 4875 6200
Wire Notes Line
3975 6400 3525 6400
Wire Notes Line
3525 6400 3525 5900
Wire Notes Line
3525 5900 3700 5900
Wire Notes Line
3700 5900 3700 6100
Wire Notes Line
3700 6100 4750 6100
Wire Notes Line
4750 6100 4750 5700
Wire Notes Line
4750 5700 5575 5700
Wire Notes Line
5575 5700 5575 7000
Wire Notes Line
5575 7000 3975 7000
Wire Notes Line
3975 6400 3975 7000
$Comp
L Amplifier_Operational:MCP6004 U2
U 5 1 5FBAE53C
P 775 7200
F 0 "U2" H 675 7200 50 0000 C CNN
F 1 "MCP6004" H 950 7350 50 0001 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 725 7300 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 825 7400 50 0001 C CNN
F 4 "C50282" H 775 7200 50 0001 C CNN "LCSC"
5 775 7200
1 0 0 -1
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U1
U 5 1 5FBAFE30
P 1125 7200
F 0 "U1" H 1025 7200 50 0000 C CNN
F 1 "MCP6004" H 1300 7350 50 0001 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 1075 7300 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 1175 7400 50 0001 C CNN
F 4 "C50282" H 1125 7200 50 0001 C CNN "LCSC"
5 1125 7200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0101
U 1 1 5FBB1764
P 1025 7500
F 0 "#PWR0101" H 1025 7250 50 0001 C CNN
F 1 "GND" H 1030 7327 50 0000 C CNN
F 2 "" H 1025 7500 50 0001 C CNN
F 3 "" H 1025 7500 50 0001 C CNN
1 1025 7500
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR0102
U 1 1 5FBB1A01
P 675 6900
F 0 "#PWR0102" H 675 6750 50 0001 C CNN
F 1 "+3.3V" H 690 7073 50 0000 C CNN
F 2 "" H 675 6900 50 0001 C CNN
F 3 "" H 675 6900 50 0001 C CNN
1 675 6900
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0103
U 1 1 5FBB31CE
P 675 7500
F 0 "#PWR0103" H 675 7250 50 0001 C CNN
F 1 "GND" H 680 7327 50 0000 C CNN
F 2 "" H 675 7500 50 0001 C CNN
F 3 "" H 675 7500 50 0001 C CNN
1 675 7500
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR0104
U 1 1 5FBB375A
P 1025 6900
F 0 "#PWR0104" H 1025 6750 50 0001 C CNN
F 1 "+3.3V" H 1040 7073 50 0000 C CNN
F 2 "" H 1025 6900 50 0001 C CNN
F 3 "" H 1025 6900 50 0001 C CNN
1 1025 6900
1 0 0 -1
$EndComp
Wire Wire Line
4975 4375 4975 5100
Text Label 2100 6625 2 50 ~ 0
Pump_Ref_Feedback
Text Label 10900 2175 2 50 ~ 0
Ip_sense
Wire Wire Line
10400 2175 10900 2175
Wire Wire Line
7675 1750 7675 1650
$Comp
L Device:R R23
U 1 1 5F9F80F6
P 7675 1900
F 0 "R23" H 7675 2050 50 0000 L CNN
F 1 "33" V 7675 1850 50 0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7605 1900 50 0001 C CNN
F 3 "~" H 7675 1900 50 0001 C CNN
F 4 "C23140" H 7675 1900 50 0001 C CNN "LCSC"
1 7675 1900
1 0 0 -1
$EndComp
Wire Wire Line
8075 1650 8400 1650
Connection ~ 8075 1650
Wire Wire Line
8075 1650 8075 1725
Wire Wire Line
8400 1650 8400 1725
$Comp
L power:GND #PWR025
U 1 1 5F9D42D5
P 8400 2025
F 0 "#PWR025" H 8400 1775 50 0001 C CNN
F 1 "GND" H 8405 1852 50 0000 C CNN
F 2 "" H 8400 2025 50 0001 C CNN
F 3 "" H 8400 2025 50 0001 C CNN
1 8400 2025
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR022
U 1 1 5F9C8951
P 8075 2025
F 0 "#PWR022" H 8075 1775 50 0001 C CNN
F 1 "GND" H 8080 1852 50 0000 C CNN
F 2 "" H 8075 2025 50 0001 C CNN
F 3 "" H 8075 2025 50 0001 C CNN
1 8075 2025
1 0 0 -1
$EndComp
$Comp
L Device:C C9
U 1 1 5F9C7CF3
P 8400 1875
F 0 "C9" H 8515 1921 50 0000 L CNN
F 1 "100n" H 8515 1830 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8438 1725 50 0001 C CNN
F 3 "~" H 8400 1875 50 0001 C CNN
F 4 "C1525" H 8400 1875 50 0001 C CNN "LCSC"
1 8400 1875
1 0 0 -1
$EndComp
$Comp
L Device:C C7
U 1 1 5F9C6F22
P 8075 1875
F 0 "C7" H 8190 1921 50 0000 L CNN
F 1 "1u" H 8190 1830 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8113 1725 50 0001 C CNN
F 3 "~" H 8075 1875 50 0001 C CNN
F 4 "C52923" H 8075 1875 50 0001 C CNN "LCSC"
1 8075 1875
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR020
U 1 1 5F989EEA
P 7375 2025
F 0 "#PWR020" H 7375 1875 50 0001 C CNN
F 1 "+3.3V" H 7390 2198 50 0000 C CNN
F 2 "" H 7375 2025 50 0001 C CNN
F 3 "" H 7375 2025 50 0001 C CNN
1 7375 2025
1 0 0 -1
$EndComp
$Comp
L Device:C C11
U 1 1 5FE80F0F
P 10025 2400
F 0 "C11" H 10140 2446 50 0000 L CNN
F 1 "100n" H 10140 2355 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 10063 2250 50 0001 C CNN
F 3 "~" H 10025 2400 50 0001 C CNN
F 4 "C1525" H 10025 2400 50 0001 C CNN "LCSC"
1 10025 2400
1 0 0 -1
$EndComp
$Comp
L Device:R R24
U 1 1 5FE81AAB
P 10250 2175
F 0 "R24" V 10043 2175 50 0000 C CNN
F 1 "3.3k" V 10134 2175 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 10180 2175 50 0001 C CNN
F 3 "~" H 10250 2175 50 0001 C CNN
F 4 "C25890" H 10250 2175 50 0001 C CNN "LCSC"
1 10250 2175
0 1 1 0
$EndComp
$Comp
L power:GND #PWR0106
U 1 1 5FE88E31
P 10025 2550
F 0 "#PWR0106" H 10025 2300 50 0001 C CNN
F 1 "GND" H 10030 2377 50 0000 C CNN
F 2 "" H 10025 2550 50 0001 C CNN
F 3 "" H 10025 2550 50 0001 C CNN
1 10025 2550
1 0 0 -1
$EndComp
Wire Wire Line
10025 2250 10025 2175
Wire Wire Line
10025 2175 10100 2175
Text Label 8850 3625 2 50 ~ 0
CAN_RX
Wire Wire Line
8850 3625 8375 3625
Wire Wire Line
8375 3725 8850 3725
Text Label 8850 3725 2 50 ~ 0
CAN_TX
Wire Wire Line
8375 2525 8850 2525
Text Label 8850 2525 2 50 ~ 0
Un_sense
Text Label 7875 1650 0 50 ~ 0
VDDA
Text Label 6700 4025 0 50 ~ 0
Nernst_esr_drive
Wire Wire Line
6700 4025 7375 4025
Text Label 8850 4025 2 50 ~ 0
SPI_CS
Text Label 6875 3525 0 50 ~ 0
SPI_SCK
Text Label 6875 3625 0 50 ~ 0
SPI_MISO
Text Label 6875 3725 0 50 ~ 0
SPI_MOSI
Wire Wire Line
6875 3725 7375 3725
Wire Wire Line
7375 3625 6875 3625
Wire Wire Line
6875 3525 7375 3525
Wire Wire Line
8375 4025 8850 4025
$Comp
L Device:Q_NMOS_GDS Q1
U 1 1 600E1A2D
P 6825 5050
F 0 "Q1" H 7029 5096 50 0000 L CNN
F 1 "BTS3028" H 7029 5005 50 0000 L CNN
F 2 "Package_TO_SOT_SMD:TO-252-2" H 7025 5150 50 0001 C CNN
F 3 "~" H 6825 5050 50 0001 C CNN
F 4 "C112639" H 6825 5050 50 0001 C CNN "LCSC"
1 6825 5050
1 0 0 -1
$EndComp
$Comp
L Device:R R25
U 1 1 600E2EC0
P 6275 5050
F 0 "R25" V 6175 5050 50 0000 C CNN
F 1 "1k" V 6275 5050 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6205 5050 50 0001 C CNN
F 3 "~" H 6275 5050 50 0001 C CNN
F 4 "C11702" V 6275 5050 50 0001 C CNN "LCSC"
1 6275 5050
0 1 1 0
$EndComp
$Comp
L Device:R R26
U 1 1 600E5D60
P 6525 5275
F 0 "R26" V 6425 5275 50 0000 C CNN
F 1 "1k" V 6525 5275 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6455 5275 50 0001 C CNN
F 3 "~" H 6525 5275 50 0001 C CNN
F 4 "C11702" V 6525 5275 50 0001 C CNN "LCSC"
1 6525 5275
-1 0 0 1
$EndComp
Wire Wire Line
6525 5050 6625 5050
Wire Wire Line
6525 5125 6525 5050
Wire Wire Line
6425 5050 6525 5050
Connection ~ 6525 5050
Wire Wire Line
5675 5050 6050 5050
$Comp
L power:GND #PWR0107
U 1 1 6010ED98
P 6525 5425
F 0 "#PWR0107" H 6525 5175 50 0001 C CNN
F 1 "GND" H 6530 5252 50 0000 C CNN
F 2 "" H 6525 5425 50 0001 C CNN
F 3 "" H 6525 5425 50 0001 C CNN
1 6525 5425
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0108
U 1 1 6010F2A5
P 6925 5250
F 0 "#PWR0108" H 6925 5000 50 0001 C CNN
F 1 "GND" H 6930 5077 50 0000 C CNN
F 2 "" H 6925 5250 50 0001 C CNN
F 3 "" H 6925 5250 50 0001 C CNN
1 6925 5250
1 0 0 -1
$EndComp
Text Label 7075 2525 0 50 ~ 0
nRESET
$Comp
L Device:C C13
U 1 1 60140604
P 8325 1050
F 0 "C13" H 8440 1096 50 0000 L CNN
F 1 "100n" H 8440 1005 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8363 900 50 0001 C CNN
F 3 "~" H 8325 1050 50 0001 C CNN
F 4 "C1525" H 8325 1050 50 0001 C CNN "LCSC"
1 8325 1050
1 0 0 -1
$EndComp
$Comp
L Device:C C12
U 1 1 6014129F
P 7875 1050
F 0 "C12" H 7990 1096 50 0000 L CNN
F 1 "100n" H 7990 1005 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 7913 900 50 0001 C CNN
F 3 "~" H 7875 1050 50 0001 C CNN
F 4 "C1525" H 7875 1050 50 0001 C CNN "LCSC"
1 7875 1050
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR0109
U 1 1 6014191D
P 8325 900
F 0 "#PWR0109" H 8325 750 50 0001 C CNN
F 1 "+3.3V" H 8340 1073 50 0000 C CNN
F 2 "" H 8325 900 50 0001 C CNN
F 3 "" H 8325 900 50 0001 C CNN
1 8325 900
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR0110
U 1 1 60141F92
P 7875 900
F 0 "#PWR0110" H 7875 750 50 0001 C CNN
F 1 "+3.3V" H 7890 1073 50 0000 C CNN
F 2 "" H 7875 900 50 0001 C CNN
F 3 "" H 7875 900 50 0001 C CNN
1 7875 900
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0111
U 1 1 60142538
P 7875 1200
F 0 "#PWR0111" H 7875 950 50 0001 C CNN
F 1 "GND" H 7880 1027 50 0000 C CNN
F 2 "" H 7875 1200 50 0001 C CNN
F 3 "" H 7875 1200 50 0001 C CNN
1 7875 1200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0112
U 1 1 6014344C
P 8325 1200
F 0 "#PWR0112" H 8325 950 50 0001 C CNN
F 1 "GND" H 8330 1027 50 0000 C CNN
F 2 "" H 8325 1200 50 0001 C CNN
F 3 "" H 8325 1200 50 0001 C CNN
1 8325 1200
1 0 0 -1
$EndComp
Text Label 10125 4300 0 50 ~ 0
CAN_RX
Wire Wire Line
10125 4300 10625 4300
Wire Wire Line
10625 4400 10125 4400
Text Label 10125 4400 0 50 ~ 0
CAN_TX
Text Label 10125 4500 0 50 ~ 0
SPI_CS
Text Label 10125 4600 0 50 ~ 0
SPI_SCK
Text Label 10125 4700 0 50 ~ 0
SPI_MISO
Text Label 10125 4800 0 50 ~ 0
SPI_MOSI
Wire Wire Line
10125 4800 10625 4800
Wire Wire Line
10625 4700 10125 4700
Wire Wire Line
10125 4600 10625 4600
Wire Wire Line
10625 4500 10125 4500
$Comp
L power:GND #PWR0113
U 1 1 6017DEC5
P 10625 4200
F 0 "#PWR0113" H 10625 3950 50 0001 C CNN
F 1 "GND" V 10630 4072 50 0000 R CNN
F 2 "" H 10625 4200 50 0001 C CNN
F 3 "" H 10625 4200 50 0001 C CNN
1 10625 4200
0 1 1 0
$EndComp
$Comp
L Connector_Generic:Conn_01x08 J3
U 1 1 601805CA
P 10825 4400
F 0 "J3" H 10905 4392 50 0000 L CNN
F 1 "Conn_01x08" H 10905 4301 50 0001 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical" H 10825 4400 50 0001 C CNN
F 3 "~" H 10825 4400 50 0001 C CNN
1 10825 4400
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR0114
U 1 1 601930C4
P 10625 4100
F 0 "#PWR0114" H 10625 3950 50 0001 C CNN
F 1 "+5V" H 10625 4250 50 0000 C CNN
F 2 "" H 10625 4100 50 0001 C CNN
F 3 "" H 10625 4100 50 0001 C CNN
1 10625 4100
0 -1 -1 0
$EndComp
Text Label 8900 3225 2 50 ~ 0
heater_pwm
Wire Wire Line
8900 3225 8375 3225
Wire Wire Line
8350 4600 6925 4600
Wire Wire Line
6925 4600 6925 4850
$Comp
L power:GND #PWR0115
U 1 1 601FE1CE
P 8350 4700
F 0 "#PWR0115" H 8350 4450 50 0001 C CNN
F 1 "GND" H 8355 4527 50 0000 C CNN
F 2 "" H 8350 4700 50 0001 C CNN
F 3 "" H 8350 4700 50 0001 C CNN
1 8350 4700
0 1 1 0
$EndComp
$Comp
L Connector_Generic:Conn_01x06 J2
U 1 1 60209DEC
P 8550 4800
F 0 "J2" H 8630 4792 50 0000 L CNN
F 1 "Conn_01x06" H 8630 4701 50 0000 L CNN
F 2 "Connector_Phoenix_MSTB:PhoenixContact_MSTBVA_2,5_6-G-5,08_1x06_P5.08mm_Vertical" H 8550 4800 50 0001 C CNN
F 3 "~" H 8550 4800 50 0001 C CNN
1 8550 4800
1 0 0 -1
$EndComp
Wire Wire Line
7925 5100 8350 5100
Wire Wire Line
8350 5000 7925 5000
Wire Wire Line
7925 4900 8350 4900
Wire Wire Line
8350 4800 7925 4800
$Comp
L Device:C C14
U 1 1 602BC665
P 7450 1050
F 0 "C14" H 7565 1096 50 0000 L CNN
F 1 "1u" H 7565 1005 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 7488 900 50 0001 C CNN
F 3 "~" H 7450 1050 50 0001 C CNN
F 4 "C52923" H 7450 1050 50 0001 C CNN "LCSC"
1 7450 1050
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR0116
U 1 1 602BD44D
P 7450 900
F 0 "#PWR0116" H 7450 750 50 0001 C CNN
F 1 "+3.3V" H 7465 1073 50 0000 C CNN
F 2 "" H 7450 900 50 0001 C CNN
F 3 "" H 7450 900 50 0001 C CNN
1 7450 900
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0117
U 1 1 602BD8DF
P 7450 1200
F 0 "#PWR0117" H 7450 950 50 0001 C CNN
F 1 "GND" H 7455 1027 50 0000 C CNN
F 2 "" H 7450 1200 50 0001 C CNN
F 3 "" H 7450 1200 50 0001 C CNN
1 7450 1200
1 0 0 -1
$EndComp
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 602CF71B
P 8800 5650
F 0 "#FLG0101" H 8800 5725 50 0001 C CNN
F 1 "PWR_FLAG" V 8800 5777 50 0001 L CNN
F 2 "" H 8800 5650 50 0001 C CNN
F 3 "~" H 8800 5650 50 0001 C CNN
1 8800 5650
0 -1 -1 0
$EndComp
$Comp
L Device:LED D1
U 1 1 602E44AE
P 6050 5575
F 0 "D1" V 6089 5458 50 0000 R CNN
F 1 "RED" V 5998 5458 50 0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 6050 5575 50 0001 C CNN
F 3 "~" H 6050 5575 50 0001 C CNN
F 4 "C2286" H 6050 5575 50 0001 C CNN "LCSC"
1 6050 5575
0 -1 -1 0
$EndComp
$Comp
L Device:R R27
U 1 1 602E6AD0
P 6050 5275
F 0 "R27" V 5950 5275 50 0000 C CNN
F 1 "1k" V 6050 5275 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 5980 5275 50 0001 C CNN
F 3 "~" H 6050 5275 50 0001 C CNN
F 4 "C11702" V 6050 5275 50 0001 C CNN "LCSC"
1 6050 5275
-1 0 0 1
$EndComp
Wire Wire Line
6050 5125 6050 5050
Connection ~ 6050 5050
Wire Wire Line
6050 5050 6125 5050
$Comp
L power:GND #PWR0118
U 1 1 602F94C3
P 6050 5725
F 0 "#PWR0118" H 6050 5475 50 0001 C CNN
F 1 "GND" H 6055 5552 50 0000 C CNN
F 2 "" H 6050 5725 50 0001 C CNN
F 3 "" H 6050 5725 50 0001 C CNN
1 6050 5725
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 6031ED1A
P 7875 4225
F 0 "#PWR0105" H 7875 3975 50 0001 C CNN
F 1 "GND" H 7880 4052 50 0000 C CNN
F 2 "" H 7875 4225 50 0001 C CNN
F 3 "" H 7875 4225 50 0001 C CNN
1 7875 4225
1 0 0 -1
$EndComp
Text Label 8850 3825 2 50 ~ 0
SWDIO
Text Label 8850 3925 2 50 ~ 0
SWCLK
Wire Wire Line
8375 3825 8850 3825
Wire Wire Line
8375 3925 8850 3925
Wire Wire Line
7675 1650 7875 1650
Wire Wire Line
7875 1650 7875 2325
Connection ~ 7875 1650
Wire Wire Line
7875 1650 8075 1650
Wire Wire Line
7975 2325 7975 2200
Wire Wire Line
7675 2050 7675 2125
Wire Wire Line
7675 2125 7775 2125
Wire Wire Line
7775 2125 7775 2200
Wire Wire Line
7375 2200 7775 2200
Connection ~ 7775 2200
Wire Wire Line
7775 2200 7775 2325
Wire Wire Line
7775 2200 7975 2200
Text Label 8850 2625 2 50 ~ 0
LSU_Vm
Wire Wire Line
10025 2175 9775 2175
Wire Wire Line
9775 2175 9775 2725
Wire Wire Line
9775 2725 8375 2725
Connection ~ 10025 2175
$Comp
L MCU_ST_STM32F0:STM32F042K6Ux U4
U 1 1 604EAF38
P 7875 3225
F 0 "U4" H 8100 2275 50 0000 C CNN
F 1 "STM32F042K6Ux" H 7450 2275 50 0000 C CNN
F 2 "Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm" H 7475 2325 50 0001 R CNN
F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00105814.pdf" H 7875 3225 50 0001 C CNN
F 4 "C110616" H 7875 3225 50 0001 C CNN "LCSC"
1 7875 3225
1 0 0 -1
$EndComp
Wire Wire Line
8850 2625 8375 2625
NoConn ~ 7375 2925
NoConn ~ 7375 2825
NoConn ~ 7375 3825
NoConn ~ 7375 3925
$Comp
L power:GND #PWR0120
U 1 1 60687757
P 6975 3025
F 0 "#PWR0120" H 6975 2775 50 0001 C CNN
F 1 "GND" V 6980 2897 50 0000 R CNN
F 2 "" H 6975 3025 50 0001 C CNN
F 3 "" H 6975 3025 50 0001 C CNN
1 6975 3025
0 1 1 0
$EndComp
Wire Wire Line
7375 2525 7075 2525
Wire Wire Line
7375 2200 7375 2025
Connection ~ 9800 3125
Wire Wire Line
9800 3125 9725 3125
Wire Wire Line
9800 3200 9800 3125
$Comp
L power:GND #PWR0119
U 1 1 60487769
P 9800 3500
F 0 "#PWR0119" H 9800 3250 50 0001 C CNN
F 1 "GND" H 9805 3327 50 0000 C CNN
F 2 "" H 9800 3500 50 0001 C CNN
F 3 "" H 9800 3500 50 0001 C CNN
1 9800 3500
1 0 0 -1
$EndComp
Wire Wire Line
8375 3125 9425 3125
$Comp
L Device:C C15
U 1 1 6044EBCC
P 9800 3350
F 0 "C15" H 9915 3396 50 0000 L CNN
F 1 "100n" H 9915 3305 50 0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 9838 3200 50 0001 C CNN
F 3 "~" H 9800 3350 50 0001 C CNN
F 4 "C1525" H 9800 3350 50 0001 C CNN "LCSC"
1 9800 3350
1 0 0 -1
$EndComp
$Comp
L Device:R R28
U 1 1 6044E8C3
P 9575 3125
F 0 "R28" V 9368 3125 50 0000 C CNN
F 1 "3.3k" V 9459 3125 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 9505 3125 50 0001 C CNN
F 3 "~" H 9575 3125 50 0001 C CNN
F 4 "C25890" H 9575 3125 50 0001 C CNN "LCSC"
1 9575 3125
0 1 1 0
$EndComp
Wire Wire Line
9800 3125 10275 3125
Text Label 10275 3125 2 50 ~ 0
Ip_dac
NoConn ~ 8375 2825
NoConn ~ 8375 2925
NoConn ~ 8375 3025
NoConn ~ 8375 3325
NoConn ~ 8375 3425
NoConn ~ 8375 3525
NoConn ~ 7375 3425
NoConn ~ 7375 3325
NoConn ~ 7375 3225
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 60745395
P 7675 1650
F 0 "#FLG0102" H 7675 1725 50 0001 C CNN
F 1 "PWR_FLAG" H 7425 1725 50 0001 C CNN
F 2 "" H 7675 1650 50 0001 C CNN
F 3 "~" H 7675 1650 50 0001 C CNN
1 7675 1650
1 0 0 -1
$EndComp
Connection ~ 7675 1650
$Comp
L power:GND #PWR0121
U 1 1 60746A78
P 8575 6050
F 0 "#PWR0121" H 8575 5800 50 0001 C CNN
F 1 "GND" H 8580 5877 50 0000 C CNN
F 2 "" H 8575 6050 50 0001 C CNN
F 3 "" H 8575 6050 50 0001 C CNN
1 8575 6050
1 0 0 -1
$EndComp
$Comp
L power:PWR_FLAG #FLG0103
U 1 1 60746E03
P 8575 6050
F 0 "#FLG0103" H 8575 6125 50 0001 C CNN
F 1 "PWR_FLAG" V 8575 6177 50 0001 L CNN
F 2 "" H 8575 6050 50 0001 C CNN
F 3 "~" H 8575 6050 50 0001 C CNN
1 8575 6050
1 0 0 -1
$EndComp
$Comp
L Device:R R29
U 1 1 60749D41
P 7125 3025
F 0 "R29" V 7200 3025 50 0000 C CNN
F 1 "10k" V 7125 3025 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7055 3025 50 0001 C CNN
F 3 "~" H 7125 3025 50 0001 C CNN
F 4 "C25744" H 7125 3025 50 0001 C CNN "LCSC"
1 7125 3025
0 -1 -1 0
$EndComp
Wire Wire Line
7275 3025 7375 3025
$Comp
L Device:LED D2
U 1 1 607B4B99
P 10550 5650
F 0 "D2" V 10589 5533 50 0000 R CNN
F 1 "GREEN" V 10498 5533 50 0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 10550 5650 50 0001 C CNN
F 3 "~" H 10550 5650 50 0001 C CNN
F 4 "C72043" H 10550 5650 50 0001 C CNN "LCSC"
1 10550 5650
-1 0 0 1
$EndComp
$Comp
L Device:R R30
U 1 1 607B4BA0
P 10250 5650
F 0 "R30" V 10150 5650 50 0000 C CNN
F 1 "1k" V 10250 5650 50 0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 10180 5650 50 0001 C CNN
F 3 "~" H 10250 5650 50 0001 C CNN
F 4 "C11702" V 10250 5650 50 0001 C CNN "LCSC"
1 10250 5650
0 1 1 0
$EndComp
$Comp
L power:GND #PWR0122
U 1 1 607B4BA6
P 10700 5650
F 0 "#PWR0122" H 10700 5400 50 0001 C CNN
F 1 "GND" H 10705 5477 50 0000 C CNN
F 2 "" H 10700 5650 50 0001 C CNN
F 3 "" H 10700 5650 50 0001 C CNN
1 10700 5650
0 -1 -1 0
$EndComp
Wire Wire Line
10100 5650 9975 5650
Connection ~ 9975 5650
$Comp
L Device:R R1
U 1 1 5EB0F879
P 1100 1025
F 0 "R1" H 1170 1071 50 0000 L CNN
F 1 "10k" H 1170 980 50 0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1030 1025 50 0001 C CNN
F 3 "~" H 1100 1025 50 0001 C CNN
F 4 "C25744" H 1100 1025 50 0001 C CNN "LCSC"
1 1100 1025
1 0 0 -1
$EndComp
Text Notes 1175 5150 0 50 ~ 0
0.2v reference
$EndSCHEMATC
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