EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 8 8
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:+12V #PWR0138
U 1 1 60E341D3
P 4150 3400
F 0 "#PWR0138" H 4150 3250 50  0001 C CNN
F 1 "+12V" H 4165 3573 50  0000 C CNN
F 2 "" H 4150 3400 50  0001 C CNN
F 3 "" H 4150 3400 50  0001 C CNN
	1    4150 3400
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0139
U 1 1 60E344EB
P 4150 5000
F 0 "#PWR0139" H 4150 4750 50  0001 C CNN
F 1 "GND" H 4155 4827 50  0000 C CNN
F 2 "" H 4150 5000 50  0001 C CNN
F 3 "" H 4150 5000 50  0001 C CNN
	1    4150 5000
	1    0    0    -1  
$EndComp
$Comp
L Device:Q_NPN_BEC Q8
U 1 1 60F73A02
P 4050 4500
F 0 "Q8" H 4240 4546 50  0000 L CNN
F 1 "PMBT3904" H 4240 4455 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 4250 4600 50  0001 C CNN
F 3 "~" H 4050 4500 50  0001 C CNN
	1    4050 4500
	1    0    0    -1  
$EndComp
$Comp
L Device:R R127
U 1 1 60F7CC07
P 4150 3850
F 0 "R127" H 4220 3896 50  0000 L CNN
F 1 "10k" H 4220 3805 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4080 3850 50  0001 C CNN
F 3 "~" H 4150 3850 50  0001 C CNN
	1    4150 3850
	1    0    0    -1  
$EndComp
$Comp
L Device:R R126
U 1 1 60F8DC46
P 3700 4700
F 0 "R126" V 3907 4700 50  0000 C CNN
F 1 "10k" V 3816 4700 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3630 4700 50  0001 C CNN
F 3 "~" H 3700 4700 50  0001 C CNN
	1    3700 4700
	-1   0    0    1   
$EndComp
$Comp
L Device:R R125
U 1 1 60F8FB89
P 3400 4500
F 0 "R125" H 3470 4546 50  0000 L CNN
F 1 "1k" H 3470 4455 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3330 4500 50  0001 C CNN
F 3 "~" H 3400 4500 50  0001 C CNN
	1    3400 4500
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5350 3700 5450 3700
Wire Wire Line
	5450 3700 5450 3600
Wire Wire Line
	5450 3400 5350 3400
Wire Wire Line
	5350 3500 5450 3500
Connection ~ 5450 3500
Wire Wire Line
	5450 3500 5450 3400
Wire Wire Line
	5350 3600 5450 3600
Connection ~ 5450 3600
Wire Wire Line
	5450 3600 5450 3500
Wire Wire Line
	4750 3500 4650 3500
Wire Wire Line
	4650 3500 4650 3600
Wire Wire Line
	4650 3700 4750 3700
Wire Wire Line
	4750 3600 4650 3600
Connection ~ 4650 3600
Wire Wire Line
	4650 3600 4650 3700
Wire Wire Line
	4150 3700 4150 3600
Wire Wire Line
	4150 3400 4150 3600
Connection ~ 4150 3600
Wire Wire Line
	4150 4000 4150 4100
Wire Wire Line
	4950 4100 4950 4000
Connection ~ 4150 4100
Wire Wire Line
	4150 4700 4150 4900
Wire Wire Line
	3550 4500 3700 4500
Wire Wire Line
	3700 4850 3700 4900
Wire Wire Line
	3700 4900 4150 4900
Connection ~ 4150 4900
Wire Wire Line
	4150 4900 4150 5000
Wire Wire Line
	3700 4550 3700 4500
Connection ~ 3700 4500
Wire Wire Line
	3700 4500 3850 4500
Text HLabel 3100 4500 0    50   Input ~ 0
12V_SW
Wire Wire Line
	3250 4500 3100 4500
$Comp
L Device:R R131
U 1 1 628EB7FE
P 6150 3400
F 0 "R131" H 6220 3446 50  0000 L CNN
F 1 "10k" H 6220 3355 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6080 3400 50  0001 C CNN
F 3 "~" H 6150 3400 50  0001 C CNN
	1    6150 3400
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D22
U 1 1 628EC8B3
P 5750 3400
F 0 "D22" V 5789 3282 50  0000 R CNN
F 1 "LED_12V_OUT" V 5698 3282 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 5750 3400 50  0001 C CNN
F 3 "~" H 5750 3400 50  0001 C CNN
	1    5750 3400
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0140
U 1 1 628F2CF4
P 6450 3550
F 0 "#PWR0140" H 6450 3300 50  0001 C CNN
F 1 "GND" H 6455 3377 50  0000 C CNN
F 2 "" H 6450 3550 50  0001 C CNN
F 3 "" H 6450 3550 50  0001 C CNN
	1    6450 3550
	1    0    0    -1  
$EndComp
Wire Wire Line
	5450 3400 5600 3400
Connection ~ 5450 3400
Wire Wire Line
	5900 3400 6000 3400
Wire Wire Line
	6300 3400 6450 3400
Wire Wire Line
	6450 3400 6450 3550
Wire Wire Line
	4150 4100 4950 4100
Wire Wire Line
	4150 3600 4650 3600
Wire Wire Line
	4150 4100 4150 4300
Text GLabel 5350 5400 0    50   Input ~ 0
+12V_OUT
Wire Wire Line
	5350 5400 5450 5400
$Comp
L Device:R R128
U 1 1 60FB945B
P 5450 4650
F 0 "R128" V 5243 4650 50  0000 C CNN
F 1 "0.05/1%/3W" V 5334 4650 50  0000 C CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 5380 4650 50  0001 C CNN
F 3 "~" H 5450 4650 50  0001 C CNN
	1    5450 4650
	-1   0    0    1   
$EndComp
Connection ~ 5450 3700
Wire Wire Line
	8000 4700 7900 4700
Wire Wire Line
	7900 4600 8000 4600
NoConn ~ 7100 4500
$Comp
L TestAutomation:INA190 U15
U 1 1 622227F5
P 7500 4500
F 0 "U15" H 7500 4135 50  0000 C CNN
F 1 "INA190A1" H 7500 4226 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:TSOT-23-8" H 7500 4500 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/ina190.pdf" H 7500 4500 50  0001 C CNN
	1    7500 4500
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0144
U 1 1 62250711
P 8350 4400
F 0 "#PWR0144" H 8350 4150 50  0001 C CNN
F 1 "GND" V 8355 4272 50  0000 R CNN
F 2 "" H 8350 4400 50  0001 C CNN
F 3 "" H 8350 4400 50  0001 C CNN
	1    8350 4400
	0    -1   -1   0   
$EndComp
$Comp
L power:+3V3 #PWR0141
U 1 1 6225459A
P 6800 3050
F 0 "#PWR0141" H 6800 2900 50  0001 C CNN
F 1 "+3V3" H 6815 3223 50  0000 C CNN
F 2 "" H 6800 3050 50  0001 C CNN
F 3 "" H 6800 3050 50  0001 C CNN
	1    6800 3050
	1    0    0    -1  
$EndComp
$Comp
L Device:L L7
U 1 1 62254B17
P 7150 3200
F 0 "L7" V 7340 3200 50  0000 C CNN
F 1 "10uH" V 7249 3200 50  0000 C CNN
F 2 "Inductor_SMD:L_0603_1608Metric" H 7150 3200 50  0001 C CNN
F 3 "~" H 7150 3200 50  0001 C CNN
	1    7150 3200
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6800 3200 7000 3200
Wire Wire Line
	8400 4700 8150 4700
Wire Wire Line
	8350 4400 8150 4400
$Comp
L Device:C C49
U 1 1 62283944
P 8150 4550
F 0 "C49" H 8265 4596 50  0000 L CNN
F 1 "0.1uF" H 8265 4505 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8188 4400 50  0001 C CNN
F 3 "~" H 8150 4550 50  0001 C CNN
	1    8150 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8000 4600 8000 4700
Connection ~ 8150 4400
Wire Wire Line
	8150 4700 8000 4700
Connection ~ 8150 4700
Connection ~ 8000 4700
$Comp
L Device:C C46
U 1 1 6228F6B8
P 6050 4650
F 0 "C46" H 6165 4696 50  0000 L CNN
F 1 "1000pF" H 6165 4605 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 6088 4500 50  0001 C CNN
F 3 "~" H 6050 4650 50  0001 C CNN
	1    6050 4650
	1    0    0    -1  
$EndComp
$Comp
L Device:R R129
U 1 1 6228FFFD
P 5800 4300
F 0 "R129" V 5593 4300 50  0000 C CNN
F 1 "2k" V 5684 4300 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 5730 4300 50  0001 C CNN
F 3 "~" H 5800 4300 50  0001 C CNN
	1    5800 4300
	0    1    1    0   
$EndComp
$Comp
L Device:R R130
U 1 1 622966C0
P 5800 5000
F 0 "R130" V 5593 5000 50  0000 C CNN
F 1 "2k" V 5684 5000 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 5730 5000 50  0001 C CNN
F 3 "~" H 5800 5000 50  0001 C CNN
	1    5800 5000
	0    1    1    0   
$EndComp
Wire Wire Line
	6050 4500 6050 4300
Wire Wire Line
	6050 4800 6050 5000
Wire Wire Line
	6400 5000 6400 4700
Wire Wire Line
	6400 4600 6400 4300
Wire Wire Line
	6400 4600 7100 4600
Wire Wire Line
	6400 4700 7100 4700
Text HLabel 7650 5200 2    50   Input ~ 0
12V_CURRENT
$Comp
L Amplifier_Operational:LMV321 U16
U 1 1 622C2DA6
P 8550 3350
F 0 "U16" H 8894 3396 50  0000 L CNN
F 1 "LMV321" H 8894 3305 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23-5" H 8550 3350 50  0001 L CNN
F 3 "http://www.ti.com/lit/ds/symlink/lmv324.pdf" H 8550 3350 50  0001 C CNN
	1    8550 3350
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7900 4400 8150 4400
$Comp
L Device:R R133
U 1 1 622D7C74
P 9150 3050
F 0 "R133" H 9220 3096 50  0000 L CNN
F 1 "10k/1%" H 9220 3005 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 9080 3050 50  0001 C CNN
F 3 "~" H 9150 3050 50  0001 C CNN
	1    9150 3050
	1    0    0    -1  
$EndComp
$Comp
L Device:R R134
U 1 1 622D8703
P 9150 3450
F 0 "R134" H 9220 3496 50  0000 L CNN
F 1 "10k/1%" H 9220 3405 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 9080 3450 50  0001 C CNN
F 3 "~" H 9150 3450 50  0001 C CNN
	1    9150 3450
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 3200 9150 3250
Connection ~ 9150 3250
Wire Wire Line
	9150 3250 9150 3300
Wire Wire Line
	8850 3250 9150 3250
Wire Wire Line
	8250 3350 8000 3350
Wire Wire Line
	8950 3450 8850 3450
Wire Wire Line
	8950 3850 8950 3450
Wire Wire Line
	8000 3350 8000 3850
Wire Wire Line
	8000 3850 8950 3850
Wire Wire Line
	7900 4500 8000 4500
Wire Wire Line
	8000 4500 8000 3850
Connection ~ 8000 3850
Wire Wire Line
	6800 3200 6800 3050
Text Label 7550 3200 0    50   ~ 0
+3V3A
$Comp
L Device:C C47
U 1 1 62308E49
P 7400 3350
F 0 "C47" H 7515 3396 50  0000 L CNN
F 1 "10uF" H 7515 3305 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 7438 3200 50  0001 C CNN
F 3 "~" H 7400 3350 50  0001 C CNN
	1    7400 3350
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0142
U 1 1 6230C6C8
P 7400 3600
F 0 "#PWR0142" H 7400 3350 50  0001 C CNN
F 1 "GND" H 7405 3427 50  0000 C CNN
F 2 "" H 7400 3600 50  0001 C CNN
F 3 "" H 7400 3600 50  0001 C CNN
	1    7400 3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	7300 3200 7400 3200
Connection ~ 7400 3200
Wire Wire Line
	7400 3200 7550 3200
Wire Wire Line
	7400 3500 7400 3600
Text Label 8400 4700 0    50   ~ 0
+3V3A
Text Label 9150 2750 0    50   ~ 0
+3V3A
Wire Wire Line
	9150 2900 9150 2850
Wire Wire Line
	8650 3050 8650 2850
Wire Wire Line
	8650 2850 9150 2850
Connection ~ 9150 2850
Wire Wire Line
	9150 2850 9150 2750
Wire Wire Line
	8650 3650 8650 3750
Wire Wire Line
	8650 3750 9150 3750
Wire Wire Line
	9150 3750 9150 3600
$Comp
L power:GND #PWR0145
U 1 1 623172E5
P 9150 3850
F 0 "#PWR0145" H 9150 3600 50  0001 C CNN
F 1 "GND" H 9155 3677 50  0000 C CNN
F 2 "" H 9150 3850 50  0001 C CNN
F 3 "" H 9150 3850 50  0001 C CNN
	1    9150 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 3750 9150 3850
Connection ~ 9150 3750
$Comp
L Device:C C48
U 1 1 6232E952
P 7500 5450
F 0 "C48" H 7615 5496 50  0000 L CNN
F 1 "1uF" H 7615 5405 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 7538 5300 50  0001 C CNN
F 3 "~" H 7500 5450 50  0001 C CNN
	1    7500 5450
	1    0    0    -1  
$EndComp
$Comp
L Device:R R132
U 1 1 62330B74
P 7200 5200
F 0 "R132" V 6993 5200 50  0000 C CNN
F 1 "1k" V 7084 5200 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7130 5200 50  0001 C CNN
F 3 "~" H 7200 5200 50  0001 C CNN
	1    7200 5200
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR0143
U 1 1 62338366
P 7500 5700
F 0 "#PWR0143" H 7500 5450 50  0001 C CNN
F 1 "GND" H 7505 5527 50  0000 C CNN
F 2 "" H 7500 5700 50  0001 C CNN
F 3 "" H 7500 5700 50  0001 C CNN
	1    7500 5700
	1    0    0    -1  
$EndComp
Wire Wire Line
	7500 5300 7500 5200
Connection ~ 7500 5200
Wire Wire Line
	7500 5200 7350 5200
Wire Wire Line
	7500 5200 7650 5200
Wire Wire Line
	7050 5200 6900 5200
Wire Wire Line
	6900 5200 6900 4400
Wire Wire Line
	6900 4400 7100 4400
Wire Wire Line
	7500 5600 7500 5700
$Comp
L TestAutomation:SI4425DDY-T1-GE3 Q9
U 1 1 62724742
P 4950 4100
F 0 "Q9" V 5831 4000 50  0000 C CNN
F 1 "SI4425DDY-T1-GE3" V 5740 4000 50  0000 C CNN
F 2 "TestAutomation:SI4425DDY-Vishay-C-06527-09_2006-I-0" H 4950 4600 50  0001 L CNN
F 3 "http://www.vishay.com/docs/64732/si4425dd.pdf" H 4950 4700 50  0001 L CNN
F 4 "Trans" H 4950 4800 50  0001 L CNN "category"
F 5 "-13A" H 4950 4900 50  0001 L CNN "continuous drain current"
F 6 "Discrete Semiconductors" H 4950 5000 50  0001 L CNN "device class L1"
F 7 "Transistors" H 4950 5100 50  0001 L CNN "device class L2"
F 8 "MOSFETs" H 4950 5200 50  0001 L CNN "device class L3"
F 9 "MOSFET P-CH 30V 19.7A 8-SOIC" H 4950 5300 50  0001 L CNN "digikey description"
F 10 "SI4425DDY-T1-GE3CT-ND" H 4950 5400 50  0001 L CNN "digikey part number"
F 11 "-30V" H 4950 5500 50  0001 L CNN "drain to source breakdown voltage"
F 12 "0.0081Ω" H 4950 5600 50  0001 L CNN "drain to source resistance"
F 13 "-30V" H 4950 5700 50  0001 L CNN "drain to source voltage"
F 14 "20V" H 4950 5800 50  0001 L CNN "gate to source voltage"
F 15 "1.75mm" H 4950 5900 50  0001 L CNN "height"
F 16 "2610pF @ -15V" H 4950 6000 50  0001 L CNN "input capacitace at vds"
F 17 "yes" H 4950 6100 50  0001 L CNN "lead free"
F 18 "e8ffa996ad20234c" H 4950 6200 50  0001 L CNN "library id"
F 19 "Vishay" H 4950 6300 50  0001 L CNN "manufacturer"
F 20 "+150°C" H 4950 6400 50  0001 L CNN "max junction temp"
F 21 "MOSFET 30V 19.7A 5.7W 9.8mohm @ 10V" H 4950 6500 50  0001 L CNN "mouser description"
F 22 "781-SI4425DDY-GE3" H 4950 6600 50  0001 L CNN "mouser part number"
F 23 "1" H 4950 6700 50  0001 L CNN "number of P channels"
F 24 "1" H 4950 6800 50  0001 L CNN "number of channels"
F 25 "SO-8" H 4950 6900 50  0001 L CNN "package"
F 26 "2.5W" H 4950 7000 50  0001 L CNN "power dissipation"
F 27 "yes" H 4950 7100 50  0001 L CNN "rohs"
F 28 "0.1mm" H 4950 7200 50  0001 L CNN "standoff height"
F 29 "MOSFET" H 4950 7300 50  0001 L CNN "technology"
F 30 "+150°C" H 4950 7400 50  0001 L CNN "temperature range high"
F 31 "-55°C" H 4950 7500 50  0001 L CNN "temperature range low"
F 32 "-1.2V" H 4950 7600 50  0001 L CNN "threshold vgs"
F 33 "42ns" H 4950 7700 50  0001 L CNN "turn off delay time"
F 34 "12ns" H 4950 7800 50  0001 L CNN "turn on delay time"
	1    4950 4100
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5450 4800 5450 5000
Wire Wire Line
	5450 3700 5450 4300
Wire Wire Line
	5950 4300 6050 4300
Connection ~ 6050 4300
Wire Wire Line
	6050 4300 6400 4300
Wire Wire Line
	5650 4300 5450 4300
Connection ~ 5450 4300
Wire Wire Line
	5450 4300 5450 4500
Wire Wire Line
	5650 5000 5450 5000
Connection ~ 5450 5000
Wire Wire Line
	5450 5000 5450 5400
Wire Wire Line
	5950 5000 6050 5000
Connection ~ 6050 5000
Wire Wire Line
	6050 5000 6400 5000
$EndSCHEMATC