ModuleV440.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "DIYBMS cell monitoring module"
Date "2021-03-03"
Rev "4.4"
Comp "Stuart Pittaway"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L MCU_Microchip_ATtiny:ATtiny841-SSU ATTINY841
U 1 1 5BC63D51
P 2055 3310
F 0 "ATTINY841" H 1525 3356 50  0000 R CNN
F 1 "ATtiny841-SSU" H 1525 3265 50  0000 R CNN
F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 2055 3310 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8495-8-bit-AVR-Microcontrollers-ATtiny441-ATtiny841_Datasheet.pdf" H 2055 3310 50  0001 C CNN
F 4 "C219103" H 2055 3310 50  0001 C CNN "LCSCStockCode"
	1    2055 3310
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0101
U 1 1 5D1EAAC3
P 5825 7395
F 0 "#PWR0101" H 5825 7245 50  0001 C CNN
F 1 "VCC" H 5825 7295 50  0000 C CNN
F 2 "" H 5825 7395 50  0001 C CNN
F 3 "" H 5825 7395 50  0001 C CNN
	1    5825 7395
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0102
U 1 1 5D1EAB19
P 6175 6785
F 0 "#PWR0102" H 6175 6535 50  0001 C CNN
F 1 "GND" H 6180 6612 50  0000 C CNN
F 2 "" H 6175 6785 50  0001 C CNN
F 3 "" H 6175 6785 50  0001 C CNN
	1    6175 6785
	1    0    0    -1  
$EndComp
Wire Wire Line
	2055 4210 2055 4230
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 5D1EAC37
P 5425 6625
F 0 "#FLG0101" H 5425 6700 50  0001 C CNN
F 1 "PWR_FLAG" H 5425 6799 50  0000 C CNN
F 2 "" H 5425 6625 50  0001 C CNN
F 3 "~" H 5425 6625 50  0001 C CNN
	1    5425 6625
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 5D1EAC7F
P 6115 7395
F 0 "#FLG0102" H 6115 7470 50  0001 C CNN
F 1 "PWR_FLAG" H 6115 7569 50  0000 C CNN
F 2 "" H 6115 7395 50  0001 C CNN
F 3 "~" H 6115 7395 50  0001 C CNN
	1    6115 7395
	1    0    0    -1  
$EndComp
$Comp
L Device:C C1
U 1 1 5D1EAD64
P 1355 2520
F 0 "C1" H 1241 2566 50  0000 R CNN
F 1 "100nF" H 1241 2475 50  0000 R CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1393 2370 50  0001 C CNN
F 3 "" H 1355 2520 50  0001 C CNN
F 4 "C49678" H 1355 2520 50  0001 C CNN "LCSCStockCode"
F 5 "CC0805KRX7R9BB104" H 1355 2520 50  0001 C CNN "PartNumber"
	1    1355 2520
	1    0    0    -1  
$EndComp
Wire Wire Line
	2055 2250 1355 2250
Wire Wire Line
	1355 2250 1355 2370
Wire Wire Line
	1355 4230 2055 4230
$Comp
L Connector:Conn_01x02_Male POWER1
U 1 1 5D1EB9F6
P 4825 7035
F 0 "POWER1" H 4931 7213 50  0000 C CNN
F 1 "Battery" H 4931 7122 50  0000 C CNN
F 2 "Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal" H 4825 7035 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/JST-Sales-America-S2B-PH-K-S-LF-SN_C173752.pdf" H 4825 7035 50  0001 C CNN
F 4 "C265016" H 4825 7035 50  0001 C CNN "LCSCStockCode"
F 5 "S2B-PH-K(LF)(SN)" H 4825 7035 50  0001 C CNN "PartNumber"
	1    4825 7035
	1    0    0    -1  
$EndComp
Wire Wire Line
	2055 2250 2055 2410
Wire Wire Line
	5425 6785 5425 6625
$Comp
L Device:R R1
U 1 1 5D1EC483
P 2965 4375
F 0 "R1" V 2758 4375 50  0000 C CNN
F 1 "10KOHMS" V 2849 4375 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 2895 4375 50  0001 C CNN
F 3 "" H 2965 4375 50  0001 C CNN
F 4 "C17414" V 2965 4375 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F1002T5E" V 2965 4375 50  0001 C CNN "PartNumber"
	1    2965 4375
	0    1    1    0   
$EndComp
$Comp
L power:VCC #PWR01
U 1 1 5D1EC6B4
P 3215 4375
F 0 "#PWR01" H 3215 4225 50  0001 C CNN
F 1 "VCC" H 3232 4548 50  0000 C CNN
F 2 "" H 3215 4375 50  0001 C CNN
F 3 "" H 3215 4375 50  0001 C CNN
	1    3215 4375
	1    0    0    -1  
$EndComp
Wire Wire Line
	3115 4375 3215 4375
$Comp
L Connector:AVR-ISP-6 J2
U 1 1 5D1ECDB4
P 2125 5770
F 0 "J2" H 1845 5866 50  0000 R CNN
F 1 "AVR-ISP-6" H 1845 5775 50  0000 R CNN
F 2 "Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm" V 1875 5820 50  0001 C CNN
F 3 "https://lcsc.com/product-detail/Pin-Header-Female-Header_Boom-Precision-Elec-2-54mm-2-3P-Header_C65114.html" H 850 5220 50  0001 C CNN
F 4 "C65114" H 2125 5770 50  0001 C CNN "LCSCStockCode"
	1    2125 5770
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0103
U 1 1 5D1ECE60
P 2025 5190
F 0 "#PWR0103" H 2025 5040 50  0001 C CNN
F 1 "VCC" H 2042 5363 50  0000 C CNN
F 2 "" H 2025 5190 50  0001 C CNN
F 3 "" H 2025 5190 50  0001 C CNN
	1    2025 5190
	1    0    0    -1  
$EndComp
Wire Wire Line
	2025 5270 2025 5190
$Comp
L power:GND #PWR0104
U 1 1 5D1ED05B
P 2025 6240
F 0 "#PWR0104" H 2025 5990 50  0001 C CNN
F 1 "GND" H 2030 6067 50  0000 C CNN
F 2 "" H 2025 6240 50  0001 C CNN
F 3 "" H 2025 6240 50  0001 C CNN
	1    2025 6240
	1    0    0    -1  
$EndComp
Wire Wire Line
	2025 6170 2025 6240
Wire Wire Line
	3585 3210 3585 5570
Wire Wire Line
	2655 3210 3585 3210
Wire Wire Line
	3455 3310 2655 3310
Wire Wire Line
	2655 3110 3375 3110
$Comp
L power:GND #PWR0105
U 1 1 5D1F0262
P 2195 4230
F 0 "#PWR0105" H 2195 3980 50  0001 C CNN
F 1 "GND" H 2200 4057 50  0000 C CNN
F 2 "" H 2195 4230 50  0001 C CNN
F 3 "" H 2195 4230 50  0001 C CNN
	1    2195 4230
	1    0    0    -1  
$EndComp
Wire Wire Line
	5125 6785 5125 7035
$Comp
L power:VCC #PWR0106
U 1 1 5D1F1B1C
P 2055 2250
F 0 "#PWR0106" H 2055 2100 50  0001 C CNN
F 1 "VCC" H 2072 2423 50  0000 C CNN
F 2 "" H 2055 2250 50  0001 C CNN
F 3 "" H 2055 2250 50  0001 C CNN
	1    2055 2250
	1    0    0    -1  
$EndComp
Connection ~ 2055 2250
Wire Wire Line
	2815 4375 2655 4375
Connection ~ 2055 4230
Wire Wire Line
	2195 4230 2055 4230
$Comp
L Reference_Voltage:LM385Z-ADJ D1
U 1 1 5D1FB1C3
P 3765 2400
F 0 "D1" V 3811 2312 50  0000 R CNN
F 1 "AZ432ANTR-E1" V 3660 2360 50  0000 R CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 3765 2200 50  0001 C CIN
F 3 "https://datasheet.lcsc.com/szlcsc/Diodes-Incorporated-AZ432ANTR-E1_C84139.pdf" H 3765 2400 50  0001 C CIN
F 4 "C84139" V 3765 2400 50  0001 C CNN "LCSCStockCode"
F 5 "AZ432ANTR-E1" V 3765 2400 50  0001 C CNN "PartNumber"
	1    3765 2400
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R2
U 1 1 5D1FB25D
P 3765 1950
F 0 "R2" H 3835 1996 50  0000 L CNN
F 1 "1KOHMS" H 3835 1905 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 3695 1950 50  0001 C CNN
F 3 "" H 3765 1950 50  0001 C CNN
F 4 "C17513" V 2965 4050 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F1001T5E" V 2965 4050 50  0001 C CNN "PartNumber"
	1    3765 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	3765 2250 3765 2220
Connection ~ 3765 2220
Wire Wire Line
	3765 2220 3765 2100
Wire Wire Line
	3765 2550 3905 2550
$Comp
L power:GND #PWR0107
U 1 1 5D1FCDB1
P 3905 2550
F 0 "#PWR0107" H 3905 2300 50  0001 C CNN
F 1 "GND" H 3910 2377 50  0000 C CNN
F 2 "" H 3905 2550 50  0001 C CNN
F 3 "" H 3905 2550 50  0001 C CNN
	1    3905 2550
	1    0    0    -1  
$EndComp
Text GLabel 2825 3410 2    50   Input ~ 0
ENABLE
Text GLabel 3765 1650 2    50   Input ~ 0
ENABLE
Wire Wire Line
	3765 1650 3765 1800
Text GLabel 4850 2590 2    50   Input ~ 0
ENABLE
Wire Wire Line
	4850 2670 4850 2590
Wire Wire Line
	2655 3410 2835 3410
Text GLabel 2905 2810 2    50   Input ~ 0
TXD0
Wire Wire Line
	2655 2810 2905 2810
Text GLabel 2905 2910 2    50   Input ~ 0
RXD0
Wire Wire Line
	2655 2910 2905 2910
Text Notes 1325 1890 0    50   ~ 0
PA7 has a higher current output than other pins
$Comp
L Isolator:PC817 U1
U 1 1 5BF1DCDE
P 9640 4960
F 0 "U1" H 9640 5285 50  0000 C CNN
F 1 "EL3H7(B)(TA)-G" H 9640 5194 50  0000 C CNN
F 2 "Package_SO:SOP-4_4.4x2.6mm_P1.27mm" H 9440 4760 50  0001 L CIN
F 3 "https://datasheet.lcsc.com/szlcsc/Everlight-Elec-EL3H7-B-TA-G_C32565.pdf" H 9640 4960 50  0001 L CNN
F 4 "C32565" H 9640 4960 50  0001 C CNN "LCSCStockCode"
F 5 "EL3H7(B)(TA)-G" H 9640 4960 50  0001 C CNN "PartNumber"
F 6 "90" H 9640 4960 50  0001 C CNN "JLCPCBRotation"
	1    9640 4960
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x02_Male TX1
U 1 1 5BF1DEA4
P 10390 5000
F 0 "TX1" H 10363 4880 50  0000 R CNN
F 1 "TX Connector" H 10363 4971 50  0000 R CNN
F 2 "Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal" H 10390 5000 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/JST-Sales-America-S2B-PH-K-S-LF-SN_C173752.pdf" H 10390 5000 50  0001 C CNN
F 4 "C265016" H 10390 5000 50  0001 C CNN "LCSCStockCode"
F 5 "S2B-PH-K(LF)(SN)" H 10390 5000 50  0001 C CNN "PartNumber"
	1    10390 5000
	-1   0    0    1   
$EndComp
$Comp
L Device:R R5
U 1 1 5BF1E307
P 9080 4860
F 0 "R5" V 8873 4860 50  0000 C CNN
F 1 "220 OHMS" V 8964 4860 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 9010 4860 50  0001 C CNN
F 3 "" H 9080 4860 50  0001 C CNN
F 4 "C17557" V 3570 5040 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F2200T5E" V 3570 5040 50  0001 C CNN "PartNumber"
	1    9080 4860
	0    1    1    0   
$EndComp
Wire Wire Line
	10190 4860 10190 4900
Wire Wire Line
	10190 5060 10190 5000
Wire Wire Line
	9230 4860 9340 4860
$Comp
L power:GND #PWR0109
U 1 1 5BF23EBD
P 9240 5060
F 0 "#PWR0109" H 9240 4810 50  0001 C CNN
F 1 "GND" H 9245 4887 50  0000 C CNN
F 2 "" H 9240 5060 50  0001 C CNN
F 3 "" H 9240 5060 50  0001 C CNN
	1    9240 5060
	1    0    0    -1  
$EndComp
Wire Wire Line
	9240 5060 9340 5060
Text GLabel 8630 4860 3    50   Input ~ 0
TXD0
Wire Wire Line
	8930 4860 8630 4860
$Comp
L Device:Q_NMOS_GSD Q1
U 1 1 5BF2E627
P 10315 3405
F 0 "Q1" V 10565 3405 50  0000 C CNN
F 1 "AO3400A" V 10656 3405 50  0000 C CNN
F 2 "TO_SOT_Packages_SMD:SOT-23" H 10515 3505 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Alpha-Omega-Semicon-AOS-AO3400A_C20917.pdf" H 10315 3405 50  0001 C CNN
F 4 "C20917" V 10315 3405 50  0001 C CNN "LCSCStockCode"
F 5 "AO3400A" H 10315 3405 50  0001 C CNN "PartNumber"
	1    10315 3405
	0    1    1    0   
$EndComp
$Comp
L Device:R R15
U 1 1 5BF2E6E2
P 9765 3355
F 0 "R15" H 9835 3401 50  0000 L CNN
F 1 "10KOHMS" H 9835 3315 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 9695 3355 50  0001 C CNN
F 3 "" H 9765 3355 50  0001 C CNN
F 4 "C17414" H 9765 3355 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F1002T5E" H 9765 3355 50  0001 C CNN "PartNumber"
	1    9765 3355
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0110
U 1 1 5BF33395
P 9765 3675
F 0 "#PWR0110" H 9765 3425 50  0001 C CNN
F 1 "GND" H 9770 3502 50  0000 C CNN
F 2 "" H 9765 3675 50  0001 C CNN
F 3 "" H 9765 3675 50  0001 C CNN
	1    9765 3675
	1    0    0    -1  
$EndComp
Wire Wire Line
	9765 3505 9765 3675
Wire Wire Line
	10115 3505 9765 3505
Connection ~ 9765 3505
Wire Wire Line
	10315 3205 9765 3205
$Comp
L power:VCC #PWR0111
U 1 1 5BF41634
P 8075 2370
F 0 "#PWR0111" H 8075 2220 50  0001 C CNN
F 1 "VCC" H 8092 2543 50  0000 C CNN
F 2 "" H 8075 2370 50  0001 C CNN
F 3 "" H 8075 2370 50  0001 C CNN
	1    8075 2370
	1    0    0    -1  
$EndComp
Text Notes 10215 3185 0    50   ~ 0
gate
Text Notes 9975 3625 0    50   ~ 0
source
Text Notes 10465 3635 0    50   ~ 0
drain
Text GLabel 2655 3810 2    50   Input ~ 0
DUMP_LOAD_ENABLE
Text GLabel 8765 3375 0    50   Input ~ 0
DUMP_LOAD_ENABLE
Wire Wire Line
	9345 3205 9065 3375
Connection ~ 9765 3205
$Comp
L Connector:Conn_01x02_Male RX1
U 1 1 5BF5891C
P 10240 5720
F 0 "RX1" H 10213 5600 50  0000 R CNN
F 1 "RX Connector" H 10213 5691 50  0000 R CNN
F 2 "Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal" H 10240 5720 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/JST-Sales-America-S2B-PH-K-S-LF-SN_C173752.pdf" H 10240 5720 50  0001 C CNN
F 4 "C265016" H 10240 5720 50  0001 C CNN "LCSCStockCode"
F 5 "S2B-PH-K(LF)(SN)" H 10240 5720 50  0001 C CNN "PartNumber"
	1    10240 5720
	-1   0    0    1   
$EndComp
$Comp
L power:VCC #PWR0112
U 1 1 5BF58ABE
P 9670 5540
F 0 "#PWR0112" H 9670 5390 50  0001 C CNN
F 1 "VCC" H 9687 5713 50  0000 C CNN
F 2 "" H 9670 5540 50  0001 C CNN
F 3 "" H 9670 5540 50  0001 C CNN
	1    9670 5540
	1    0    0    -1  
$EndComp
Wire Wire Line
	9670 5620 9670 5540
$Comp
L power:GND #PWR0113
U 1 1 5BF5A4D9
P 9600 6130
F 0 "#PWR0113" H 9600 5880 50  0001 C CNN
F 1 "GND" H 9605 5957 50  0000 C CNN
F 2 "" H 9600 6130 50  0001 C CNN
F 3 "" H 9600 6130 50  0001 C CNN
	1    9600 6130
	1    0    0    -1  
$EndComp
$Comp
L Device:R R16
U 1 1 5BF5A518
P 9600 5870
F 0 "R16" V 9690 5920 50  0000 C CNN
F 1 "2.2KOHMS" V 9465 6030 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 9530 5870 50  0001 C CNN
F 3 "" H 9600 5870 50  0001 C CNN
F 4 "C17520" V 3570 5040 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F2201T5E" V 3570 5040 50  0001 C CNN "PartNumber"
	1    9600 5870
	-1   0    0    1   
$EndComp
Wire Wire Line
	9600 6020 9600 6130
Text GLabel 9330 5720 3    50   Input ~ 0
RXD0
Wire Wire Line
	9330 5720 9600 5720
Connection ~ 9600 5720
$Comp
L Device:LED D3
U 1 1 5BF65B89
P 9985 2915
F 0 "D3" H 9995 3035 50  0000 C CNN
F 1 "Red" H 9995 2745 50  0000 C CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 9985 2915 50  0001 C CNN
F 3 "" H 9985 2915 50  0001 C CNN
F 4 "C84256" H 9985 2915 50  0001 C CNN "LCSCStockCode"
F 5 "2012HRK-620D" H 9985 2915 50  0001 C CNN "PartNumber"
	1    9985 2915
	-1   0    0    1   
$EndComp
Wire Wire Line
	10135 2915 10215 2915
$Comp
L Device:Thermistor R19
U 1 1 5BF374BB
P 4865 5285
F 0 "R19" H 4935 5331 50  0000 L CNN
F 1 "CMFB103F3950FANT" H 4935 5225 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4795 5285 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Guangdong-Fenghua-Advanced-Tech-CMFB103F3950FANT_C51597.pdf" H 4865 5285 50  0001 C CNN
F 4 "C51597" V 4685 3105 50  0001 C CNN "LCSCStockCode"
F 5 "CMFB103F3950FANT" V 4685 3105 50  0001 C CNN "PartNumber"
	1    4865 5285
	1    0    0    -1  
$EndComp
$Comp
L Device:R R20
U 1 1 5BF374C1
P 4865 5675
F 0 "R20" H 4935 5721 50  0000 L CNN
F 1 "10KOHMS" H 4935 5630 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4795 5675 50  0001 C CNN
F 3 "" H 4865 5675 50  0001 C CNN
F 4 "C17414" V 4685 3105 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F1002T5E" V 4685 3105 50  0001 C CNN "PartNumber"
	1    4865 5675
	1    0    0    -1  
$EndComp
Wire Wire Line
	4865 5135 4865 5085
$Comp
L power:GND #PWR0115
U 1 1 5BF374CA
P 4865 5965
F 0 "#PWR0115" H 4865 5715 50  0001 C CNN
F 1 "GND" H 4870 5792 50  0000 C CNN
F 2 "" H 4865 5965 50  0001 C CNN
F 3 "" H 4865 5965 50  0001 C CNN
	1    4865 5965
	1    0    0    -1  
$EndComp
Wire Wire Line
	4865 5965 4865 5825
$Comp
L Device:R R21
U 1 1 5BF5CD4B
P 7035 5990
F 0 "R21" H 7105 6036 50  0000 L CNN
F 1 "10KOHMS" H 7105 5945 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 6965 5990 50  0001 C CNN
F 3 "" H 7035 5990 50  0001 C CNN
F 4 "C17414" V 5315 4360 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F1002T5E" V 5315 4360 50  0001 C CNN "PartNumber"
	1    7035 5990
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0116
U 1 1 5BF5CD53
P 7035 6140
F 0 "#PWR0116" H 7035 5890 50  0001 C CNN
F 1 "GND" H 7040 5967 50  0000 C CNN
F 2 "" H 7035 6140 50  0001 C CNN
F 3 "" H 7035 6140 50  0001 C CNN
	1    7035 6140
	1    0    0    -1  
$EndComp
Connection ~ 4865 5085
Wire Wire Line
	4865 5085 4865 5055
Wire Wire Line
	3375 3110 3375 5770
Wire Wire Line
	4865 5435 4865 5485
Wire Wire Line
	4865 5485 4615 5485
Connection ~ 4865 5485
Wire Wire Line
	4865 5485 4865 5525
Text GLabel 3425 2280 0    50   Input ~ 0
VREF
Text Notes 8890 4570 0    50   ~ 0
4 PIN ULTRA SMALL SSOP\nPHOTOTRANSISTOR PHOTOCOUPLER EL3H7-G Series\n
Wire Wire Line
	2655 2710 3425 2710
Wire Wire Line
	5825 7395 6115 7395
$Comp
L Device:R R14
U 1 1 5CB1F559
P 8915 3375
F 0 "R14" H 8985 3421 50  0000 L CNN
F 1 "510OHMS" H 8985 3315 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 8845 3375 50  0001 C CNN
F 3 "" H 8915 3375 50  0001 C CNN
F 4 "C17734" V 4095 4915 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F5100T5E" V 4095 4915 50  0001 C CNN "PartNumber"
	1    8915 3375
	0    1    1    0   
$EndComp
Wire Wire Line
	1355 2670 1355 2785
Wire Wire Line
	9940 4860 10190 4860
Wire Wire Line
	9940 5060 10190 5060
Wire Wire Line
	9670 5620 10040 5620
Wire Wire Line
	9600 5720 10040 5720
Wire Wire Line
	5025 7035 5125 7035
$Comp
L power:VCC #PWR0118
U 1 1 5CB98E0F
P 9765 2915
F 0 "#PWR0118" H 9765 2765 50  0001 C CNN
F 1 "VCC" H 9782 3088 50  0000 C CNN
F 2 "" H 9765 2915 50  0001 C CNN
F 3 "" H 9765 2915 50  0001 C CNN
	1    9765 2915
	1    0    0    -1  
$EndComp
Text Notes 9955 4130 0    50   ~ 0
MOSFET N TRENCH 30V 5.7A \n1.5V @ 250UA \n26.5 @ 5.7A\n10V SOT-23-3L ROHS
$Comp
L Device:R R17
U 1 1 5BF65CB1
P 10365 2915
F 0 "R17" V 10275 2845 50  0000 L CNN
F 1 "2.2KOHMS" V 10485 2675 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 10295 2915 50  0001 C CNN
F 3 "" H 10365 2915 50  0001 C CNN
F 4 "C17520" V 4565 5975 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F2201T5E" V 4565 5975 50  0001 C CNN "PartNumber"
	1    10365 2915
	0    1    1    0   
$EndComp
Wire Wire Line
	8355 2130 8365 2130
$Comp
L Device:R R30
U 1 1 5E15FED3
P 9245 2660
F 0 "R30" H 9315 2706 50  0000 L CNN
F 1 "3.3OHM 3/4W" H 9315 2615 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 9175 2660 50  0001 C CNN
F 3 "" H 9245 2660 50  0001 C CNN
F 4 "C270971" V 3555 5080 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3555 5080 50  0001 C CNN "PartNumber"
F 6 "" H 9245 2660 50  0001 C CNN "JLCPCBRotation"
	1    9245 2660
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R26
U 1 1 5E15FEBB
P 8845 2660
F 0 "R26" H 8915 2706 50  0000 L CNN
F 1 "3.3OHM 3/4W" H 8915 2615 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 8775 2660 50  0001 C CNN
F 3 "" H 8845 2660 50  0001 C CNN
F 4 "C270971" V 3855 5080 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3855 5080 50  0001 C CNN "PartNumber"
F 6 "" H 8845 2660 50  0001 C CNN "JLCPCBRotation"
	1    8845 2660
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R24
U 1 1 5E15FEAF
P 8505 2660
F 0 "R24" H 8575 2706 50  0000 L CNN
F 1 "3.3OHM 3/4W" H 8255 2940 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 8435 2660 50  0001 C CNN
F 3 "" H 8505 2660 50  0001 C CNN
F 4 "C270971" V 3855 5080 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3855 5080 50  0001 C CNN "PartNumber"
F 6 "" H 8505 2660 50  0001 C CNN "JLCPCBRotation"
	1    8505 2660
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8655 2370 8695 2370
$Comp
L Device:R R29
U 1 1 5E15609A
P 9245 2370
F 0 "R29" H 9315 2416 50  0000 L CNN
F 1 "3.3OHM 3/4W" V 9315 2325 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 9175 2370 50  0001 C CNN
F 3 "" H 9245 2370 50  0001 C CNN
F 4 "C270971" V 3555 4790 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3555 4790 50  0001 C CNN "PartNumber"
F 6 "" H 9245 2370 50  0001 C CNN "JLCPCBRotation"
	1    9245 2370
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R22
U 1 1 5E156076
P 8505 2370
F 0 "R22" H 8575 2416 50  0000 L CNN
F 1 "3.3OHM 3/4W" V 8575 2325 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 8435 2370 50  0001 C CNN
F 3 "" H 8505 2370 50  0001 C CNN
F 4 "C270971" V 3855 4790 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3855 4790 50  0001 C CNN "PartNumber"
F 6 "" H 8505 2370 50  0001 C CNN "JLCPCBRotation"
	1    8505 2370
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8655 2130 8695 2130
$Comp
L Device:R R12
U 1 1 5BF29ADC
P 9245 2130
F 0 "R12" H 9295 2180 50  0000 L CNN
F 1 "3.3OHM 3/4W" H 9335 2075 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 9175 2130 50  0001 C CNN
F 3 "" H 9245 2130 50  0001 C CNN
F 4 "C270971" V 3555 4550 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3555 4550 50  0001 C CNN "PartNumber"
F 6 "" H 9245 2130 50  0001 C CNN "JLCPCBRotation"
	1    9245 2130
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R8
U 1 1 5BF29A02
P 8845 2130
F 0 "R8" H 8915 2176 50  0000 L CNN
F 1 "3.3OHM 3/4W" H 8940 2090 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 8775 2130 50  0001 C CNN
F 3 "" H 8845 2130 50  0001 C CNN
F 4 "C270971" V 3855 4550 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3855 4550 50  0001 C CNN "PartNumber"
F 6 "" H 8845 2130 50  0001 C CNN "JLCPCBRotation"
	1    8845 2130
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R6
U 1 1 5BF274CC
P 8505 2130
F 0 "R6" H 8575 2176 50  0000 L CNN
F 1 "3.3OHM 3/4W" H 7785 2680 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 8435 2130 50  0001 C CNN
F 3 "" H 8505 2130 50  0001 C CNN
F 4 "C270971" V 3855 4550 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3855 4550 50  0001 C CNN "PartNumber"
F 6 "" H 8505 2130 50  0001 C CNN "JLCPCBRotation"
	1    8505 2130
	0    -1   -1   0   
$EndComp
Wire Wire Line
	9395 2370 9395 2525
Wire Wire Line
	9395 2130 9395 2370
Connection ~ 9395 2370
Wire Wire Line
	8355 2370 8355 2130
Connection ~ 8355 2370
Connection ~ 8355 2130
Wire Wire Line
	8655 2660 8695 2660
Text Notes 3985 2380 0    39   ~ 0
Diodes Incorporated\nVOLTAGE REFERENCES 1.25V ±0.5% \n20PPM/°C
Wire Wire Line
	3565 2400 3565 2280
Wire Wire Line
	3565 2220 3765 2220
Wire Wire Line
	3565 2280 3425 2280
Connection ~ 3565 2280
Wire Wire Line
	3565 2280 3565 2220
Wire Wire Line
	3425 2280 3425 2710
$Comp
L Connector:Conn_01x02_Male EXTTEMP1
U 1 1 5E1A3102
P 7555 5480
F 0 "EXTTEMP1" H 7528 5360 50  0000 R CNN
F 1 "Ext Temp Sensor" H 7528 5451 50  0000 R CNN
F 2 "Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal" H 7555 5480 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/JST-Sales-America-S2B-PH-K-S-LF-SN_C173752.pdf" H 7555 5480 50  0001 C CNN
F 4 "C265016" H 7555 5480 50  0001 C CNN "LCSCStockCode"
F 5 "S2B-PH-K(LF)(SN)" H 7555 5480 50  0001 C CNN "PartNumber"
	1    7555 5480
	-1   0    0    1   
$EndComp
$Comp
L Device:Polyfuse_Small F1
U 1 1 5E2313BD
P 5545 7395
F 0 "F1" V 5340 7395 50  0000 C CNN
F 1 "mSMD150" V 5465 7305 50  0000 C CNN
F 2 "Fuse:Fuse_1812_4532Metric" H 5595 7195 50  0001 L CNN
F 3 "https://datasheet.lcsc.com/szlcsc/TECHFUSE-mSMD150_C70121.pdf" H 5545 7395 50  0001 C CNN
F 4 "C70121" V 5545 7395 50  0001 C CNN "LCSCStockCode"
F 5 "mSMD150" H 5545 7395 50  0001 C CNN "PartNumber"
	1    5545 7395
	0    1    1    0   
$EndComp
Wire Wire Line
	5025 7135 5155 7135
Wire Wire Line
	5155 7135 5155 7395
Wire Wire Line
	5155 7395 5445 7395
Wire Wire Line
	5645 7395 5725 7395
Connection ~ 5825 7395
Text Notes 4900 7625 0    39   ~ 0
mSMD150, 8V MAX, FUSE HOLD @ 1.5AMP, TRIP 3A
Wire Wire Line
	8355 2370 8355 2660
Wire Wire Line
	8355 2370 8075 2370
$Comp
L Device:R R25
U 1 1 5E156082
P 8845 2370
F 0 "R25" H 8915 2416 50  0000 L CNN
F 1 "3.3OHM 3/4W" V 9010 810 50  0001 L CNN
F 2 "Resistor_SMD:R_2010_5025Metric" V 8775 2370 50  0001 C CNN
F 3 "" H 8845 2370 50  0001 C CNN
F 4 "C270971" V 3855 4790 50  0001 C CNN "LCSCStockCode"
F 5 "201007F330KT4E" V 3855 4790 50  0001 C CNN "PartNumber"
F 6 "" H 8845 2370 50  0001 C CNN "JLCPCBRotation"
	1    8845 2370
	0    -1   -1   0   
$EndComp
Text Notes 6470 4900 0    50   ~ 0
External temp sensor PA5 (ADC5) \nshared with MISO, snap off PCB
$Comp
L power:GND #PWR02
U 1 1 5E5CCCD1
P 3930 4630
F 0 "#PWR02" H 3930 4380 50  0001 C CNN
F 1 "GND" H 3935 4457 50  0000 C CNN
F 2 "" H 3930 4630 50  0001 C CNN
F 3 "" H 3930 4630 50  0001 C CNN
	1    3930 4630
	1    0    0    -1  
$EndComp
$Comp
L Device:C C4
U 1 1 5E5CDAE4
P 4055 4430
F 0 "C4" H 4285 4485 50  0000 R CNN
F 1 "22pF" H 4355 4380 50  0000 R CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4093 4280 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Samsung-Electro-Mechanics-CL10C220JB8NNNC_C1653.pdf" H 4055 4430 50  0001 C CNN
F 4 "C1804" H 4055 4430 50  0001 C CNN "LCSCStockCode"
F 5 "CL21C220JBANNNC" H 4055 4430 50  0001 C CNN "PartNumber"
	1    4055 4430
	1    0    0    -1  
$EndComp
$Comp
L Device:C C5
U 1 1 5E5CEDD4
P 3795 4425
F 0 "C5" H 3681 4471 50  0000 R CNN
F 1 "22pF" H 3681 4380 50  0000 R CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3833 4275 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Samsung-Electro-Mechanics-CL10C220JB8NNNC_C1653.pdf" H 3795 4425 50  0001 C CNN
F 4 "C1804" H 3795 4425 50  0001 C CNN "LCSCStockCode"
F 5 "CL21C220JBANNNC" H 3795 4425 50  0001 C CNN "PartNumber"
F 6 "0" H 3795 4425 50  0001 C CNN "JLCPCBRotation"
	1    3795 4425
	1    0    0    -1  
$EndComp
Wire Wire Line
	3995 4160 4055 4160
Connection ~ 4055 4160
Wire Wire Line
	2655 3710 3795 3710
Wire Wire Line
	3795 3710 3795 4160
Wire Wire Line
	2655 3610 4055 3610
Wire Wire Line
	4055 3610 4055 4160
Wire Wire Line
	4055 4580 4055 4630
Wire Wire Line
	4055 4160 4055 4280
Text Notes 5140 5280 0    39   ~ 0
NTC THERMISTORS 10KOHMS\n ±1% 3950K 0805 ROHS
Wire Wire Line
	9345 3205 9765 3205
Wire Wire Line
	4655 3455 4655 3595
Wire Wire Line
	4365 3455 4655 3455
$Comp
L power:GND #PWR0114
U 1 1 5BF6AC33
P 4655 3595
F 0 "#PWR0114" H 4655 3345 50  0001 C CNN
F 1 "GND" H 4660 3422 50  0000 C CNN
F 2 "" H 4655 3595 50  0001 C CNN
F 3 "" H 4655 3595 50  0001 C CNN
	1    4655 3595
	1    0    0    -1  
$EndComp
Wire Wire Line
	3985 3455 4065 3455
$Comp
L Device:R R18
U 1 1 5BF67C7F
P 4215 3455
F 0 "R18" V 4135 3385 50  0000 L CNN
F 1 "2.2KOHMS" V 4305 3335 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4145 3455 50  0001 C CNN
F 3 "" H 4215 3455 50  0001 C CNN
F 4 "C17520" V 2085 4495 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F2201T5E" V 2085 4495 50  0001 C CNN "PartNumber"
F 6 "0" V 4215 3455 50  0001 C CNN "JLCPCBRotation"
	1    4215 3455
	0    1    1    0   
$EndComp
$Comp
L Device:LED D4
U 1 1 5BF67C78
P 3835 3455
F 0 "D4" H 3975 3555 50  0000 C CNN
F 1 "Blue" H 3795 3545 50  0000 C CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 3835 3455 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Hubei-KENTO-Elec-Green-0805-Iv-207-249-mcd-atIF-20mA_C2297.pdf" H 3835 3455 50  0001 C CNN
F 4 "C2293" H 3835 3455 50  0001 C CNN "LCSCStockCode"
F 5 "Blue LED" H 3835 3455 50  0001 C CNN "PartNumber"
	1    3835 3455
	-1   0    0    1   
$EndComp
Wire Wire Line
	3455 5670 3455 3455
Wire Wire Line
	3685 3455 3455 3455
Connection ~ 3455 3455
Wire Wire Line
	3455 3310 3455 3455
Text Notes 5035 3130 0    50   ~ 0
ADC3=Output voltage 1.25V \n       for input of 4.398V (max)
Wire Wire Line
	4850 3010 4850 2970
Connection ~ 4850 3010
Wire Wire Line
	4850 3490 4850 3360
$Comp
L power:GND #PWR0108
U 1 1 5D20309D
P 4850 3490
F 0 "#PWR0108" H 4850 3240 50  0001 C CNN
F 1 "GND" H 4855 3317 50  0000 C CNN
F 2 "" H 4850 3490 50  0001 C CNN
F 3 "" H 4850 3490 50  0001 C CNN
	1    4850 3490
	1    0    0    -1  
$EndComp
Wire Wire Line
	4850 3060 4850 3010
$Comp
L Device:R R4
U 1 1 5D200BDC
P 4850 3210
F 0 "R4" H 4920 3256 50  0000 L CNN
F 1 "2.7K" H 4920 3165 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4780 3210 50  0001 C CNN
F 3 "" H 4850 3210 50  0001 C CNN
F 4 "C17530" V 3130 3250 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F2701T5E" V 3130 3250 50  0001 C CNN "PartNumber"
	1    4850 3210
	1    0    0    -1  
$EndComp
$Comp
L Device:R R3
U 1 1 5D200A38
P 4850 2820
F 0 "R3" H 4920 2866 50  0000 L CNN
F 1 "6.8K" H 4920 2775 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4780 2820 50  0001 C CNN
F 3 "" H 4850 2820 50  0001 C CNN
F 4 "C17772" V 3130 3250 50  0001 C CNN "LCSCStockCode"
F 5 "0805W8F6801T5E" V 3130 3250 50  0001 C CNN "PartNumber"
	1    4850 2820
	1    0    0    -1  
$EndComp
Wire Wire Line
	2655 3010 4850 3010
Connection ~ 10515 2915
Wire Wire Line
	10515 2915 10515 3505
Wire Wire Line
	9765 2915 9835 2915
Connection ~ 2655 4375
Wire Wire Line
	2655 4375 2655 5870
Wire Wire Line
	2655 3910 2655 4375
Wire Wire Line
	3795 4160 3795 4275
Connection ~ 3795 4160
$Comp
L Device:Crystal_Small Y1
U 1 1 5E5E68B4
P 3895 4160
F 0 "Y1" H 3915 4340 50  0000 C CNN
F 1 "8MHZ Ceramic Resonator" H 4585 4255 50  0000 C CNN
F 2 "Crystals:Crystal_SMD_5032-2pin_5.0x3.2mm" H 3895 4160 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/1903061615_Yangxing-Tech-X50328MSB2GI_C115962.pdf" H 3895 4160 50  0001 C CNN
F 4 "C115962" H 3895 4160 50  0001 C CNN "LCSCStockCode"
F 5 "X50328MSB2GI" H 3895 4160 50  0001 C CNN "PartNumber"
	1    3895 4160
	1    0    0    -1  
$EndComp
Text Notes 4435 4455 0    50   ~ 0
8Mhz used in CKDIV8 mode to \npower on at 1Mhz,\ncode then swaps to \n2Mhz using clock prescaler
Text Notes 620  1330 0    79   ~ 16
DIYBMS v4 CELL MONITORING MODULE\n\nVERSION 4.40\n\nFOR LITHIUM VOLTAGE RANGES (18650 etc.) 0 - 4.2V
Wire Wire Line
	3795 4630 3930 4630
Wire Wire Line
	3795 4630 3795 4575
Connection ~ 3930 4630
Wire Wire Line
	3930 4630 4055 4630
Wire Wire Line
	2525 5670 3455 5670
Wire Wire Line
	2525 5570 3585 5570
Wire Wire Line
	2525 5870 2655 5870
$Comp
L Device:C C2
U 1 1 601A4C70
P 890 2520
F 0 "C2" H 776 2566 50  0000 R CNN
F 1 "1uF" H 776 2475 50  0000 R CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 928 2370 50  0001 C CNN
F 3 "" H 890 2520 50  0001 C CNN
F 4 "C28323" H 890 2520 50  0001 C CNN "LCSCStockCode"
F 5 "CL21B105KBFNNNE" H 890 2520 50  0001 C CNN "PartNumber"
	1    890  2520
	1    0    0    -1  
$EndComp
Wire Wire Line
	890  2370 890  2250
Wire Wire Line
	890  2250 1355 2250
Connection ~ 1355 2250
Wire Wire Line
	890  2670 890  2785
Wire Wire Line
	890  2785 1355 2785
Connection ~ 1355 2785
Wire Wire Line
	1355 2785 1355 4230
$Comp
L Device:Thermistor R23
U 1 1 601BC05A
P 7035 5415
F 0 "R23" H 7105 5461 50  0000 L CNN
F 1 "CMFB103F3950FANT" H 6200 5400 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 6965 5415 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Guangdong-Fenghua-Advanced-Tech-CMFB103F3950FANT_C51597.pdf" H 7035 5415 50  0001 C CNN
F 4 "C51597" V 6855 3235 50  0001 C CNN "LCSCStockCode"
F 5 "CMFB103F3950FANT" V 6855 3235 50  0001 C CNN "PartNumber"
	1    7035 5415
	1    0    0    -1  
$EndComp
Text GLabel 2895 5570 1    50   Input ~ 0
MISO
Text GLabel 6835 5215 1    50   Input ~ 0
VREF
Wire Wire Line
	6835 5215 7035 5215
Text GLabel 7035 5780 2    50   Input ~ 0
MISO
Wire Wire Line
	7035 5215 7355 5215
Wire Wire Line
	7355 5215 7355 5300
Connection ~ 7035 5215
Wire Notes Line
	8440 4325 8440 6445
Wire Notes Line
	8315 6435 11010 6435
Wire Notes Line
	11010 6435 11010 4280
Wire Notes Line
	11135 4290 8440 4290
Wire Notes Line
	6055 4660 8255 4660
Wire Notes Line
	8255 4660 8255 6410
Wire Notes Line
	8255 6410 6100 6410
Wire Notes Line
	6100 6410 6100 4670
Text GLabel 2765 5770 3    50   Input ~ 0
SCK
Text GLabel 4615 5485 0    50   Input ~ 0
SCK
Wire Wire Line
	2525 5770 3375 5770
Text Notes 4650 4940 0    50   ~ 0
Internal temp sensor
Wire Notes Line
	6025 4670 4360 4670
Wire Notes Line
	4360 4670 4360 6380
Wire Notes Line
	4360 6380 6055 6380
Text GLabel 4865 5055 2    50   Input ~ 0
VREF
$Comp
L Diode:SM6T6V8A D2
U 1 1 60168E2F
P 5725 7025
F 0 "D2" V 5679 7105 50  0000 L CNN
F 1 "SMBJ5.0A" V 5770 7105 50  0000 L CNN
F 2 "Diode_SMD:D_SMB" H 5725 7025 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/1912111437_AnBon-SMBJ5-0A_C440263.pdf" H 5725 7025 50  0001 C CNN
F 4 "C440263" V 5725 7025 50  0001 C CNN "LCSCStockCode"
F 5 "0" V 5725 7025 50  0001 C CNN "JLCPCBRotation"
	1    5725 7025
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5725 7175 5725 7395
Connection ~ 5725 7395
Wire Wire Line
	5725 7395 5825 7395
Wire Wire Line
	5725 6875 5725 6785
Wire Wire Line
	5725 6785 5425 6785
Connection ~ 5425 6785
Text Notes 5790 7160 0    39   ~ 0
UNIDIRECTIONAL 5V TVS 
$Comp
L Connector:Conn_01x02_Male REMOTE1
U 1 1 6017C04C
P 7625 5725
F 0 "REMOTE1" H 7598 5605 50  0000 R CNN
F 1 "Ext Temp Sensor" H 7598 5696 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 7625 5725 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/JST-Sales-America-S2B-PH-K-S-LF-SN_C173752.pdf" H 7625 5725 50  0001 C CNN
	1    7625 5725
	-1   0    0    1   
$EndComp
Wire Wire Line
	7355 5300 7245 5300
Wire Wire Line
	7245 5300 7245 5625
Wire Wire Line
	7245 5625 7425 5625
Connection ~ 7355 5300
Wire Wire Line
	7355 5300 7355 5380
Wire Wire Line
	7425 5725 7300 5725
Wire Wire Line
	7300 5725 7300 5650
Wire Wire Line
	7035 5650 7035 5615
Wire Wire Line
	7035 5840 7035 5650
Connection ~ 7035 5650
Wire Wire Line
	7035 5650 7300 5650
Connection ~ 7300 5650
Wire Wire Line
	7300 5650 7355 5650
Wire Wire Line
	7355 5650 7355 5480
Wire Wire Line
	5725 6785 6175 6785
Wire Wire Line
	5125 6785 5425 6785
Connection ~ 5725 6785
Text Notes 7650 1965 0    47   ~ 0
CHIP RESISTOR - SURFACE MOUNT 3.3OHMS ±1% 3/4W 2010 ROHS, \n3 in series with 3 in parallel gives 3.30 Ohm equivalent resistance\n\n9 resistors provide 9*0.75W=6.75W of power disipation.\n\nBalance current (at 3.3ohm):\n1.27A at 4.2V and 5.35W power\n1.21A at 4.0V and 4.84W power\n1.13A at 3.75V and 4.26W power\n\n\n
Connection ~ 9395 2525
Wire Wire Line
	9395 2525 9395 2660
Wire Wire Line
	8995 2370 9095 2370
Wire Wire Line
	8995 2130 9095 2130
Wire Wire Line
	8995 2660 9095 2660
Wire Wire Line
	9395 2525 10515 2525
Wire Wire Line
	10515 2525 10515 2915
$EndSCHEMATC