EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 5 Title "BMS 8S50 IC" Date "2021-02-13" Rev "0.2" Comp "Libre Solar Technologies GmbH" Comment1 "Website: https://libre.solar" Comment2 "Author: Martin Jäger" Comment3 "License: Creative Commons Attribution-ShareAlike 4.0 International" Comment4 "" $EndDescr $Sheet S 6500 5000 900 600 U 58363B12 F0 "Power Supply" 50 F1 "power_supply.sch" 50 F2 "RGO" I L 6500 5400 50 F3 "BAT+" I L 6500 5200 50 $EndSheet $Comp L Project:LibreSolar_Logo LOGO2 U 1 1 58F7CBC4 P 5650 7050 F 0 "LOGO2" H 5650 7325 50 0000 C CNN F 1 "LIBRE_SOLAR" H 5650 6825 50 0000 C CNN F 2 "LibreSolar:LIBRESOLAR_LOGO" H 5670 7040 60 0001 C CNN F 3 "" H 5670 7040 60 0001 C CNN 1 5650 7050 1 0 0 -1 $EndComp $Comp L Project:Logo_Open_Hardware_Small LOGO1 U 1 1 58F7CD5F P 4900 7050 F 0 "LOGO1" H 4900 7325 50 0000 C CNN F 1 "OPEN_HARDWARE" H 4900 6825 50 0000 C CNN F 2 "Symbol:OSHW-Logo_5.7x6mm_SilkScreen" H 4900 7050 50 0001 C CNN F 3 "" H 4900 7050 50 0001 C CNN 1 4900 7050 1 0 0 -1 $EndComp $Comp L Connector:TestPoint TP4 U 1 1 591748EB P 2500 1700 F 0 "TP4" H 2578 1840 50 0000 L CNN F 1 "Bat+" H 2578 1749 50 0000 L CNN F 2 "LibreSolar:TestPoint_1mm_pad" H 2500 1700 50 0001 C CNN F 3 "" H 2500 1700 50 0001 C CNN 1 2500 1700 -1 0 0 -1 $EndComp $Comp L Connector:TestPoint TP5 U 1 1 591783E5 P 5800 5300 F 0 "TP5" H 5878 5440 50 0000 L CNN F 1 "Regout" H 5878 5349 50 0000 L CNN F 2 "LibreSolar:TestPoint_1mm_pad" H 5800 5300 50 0001 C CNN F 3 "" H 5800 5300 50 0001 C CNN 1 5800 5300 1 0 0 -1 $EndComp $Comp L Connector:TestPoint TP3 U 1 1 5917857D P 4400 1700 F 0 "TP3" H 4478 1840 50 0000 L CNN F 1 "Ext+" H 4478 1749 50 0000 L CNN F 2 "LibreSolar:TestPoint_1mm_pad" H 4400 1700 50 0001 C CNN F 3 "" H 4400 1700 50 0001 C CNN 1 4400 1700 1 0 0 -1 $EndComp $Comp L Connector:TestPoint TP6 U 1 1 5917D3E9 P 5300 3500 F 0 "TP6" H 5378 3640 50 0000 L CNN F 1 "SDA" H 5378 3549 50 0000 L CNN F 2 "LibreSolar:TestPoint_1mm_pad" H 5300 3500 50 0001 C CNN F 3 "" H 5300 3500 50 0001 C CNN 1 5300 3500 1 0 0 -1 $EndComp $Comp L Connector:TestPoint TP7 U 1 1 5917D5BB P 5600 3500 F 0 "TP7" H 5678 3640 50 0000 L CNN F 1 "SCL" H 5678 3549 50 0000 L CNN F 2 "LibreSolar:TestPoint_1mm_pad" H 5600 3500 50 0001 C CNN F 3 "" H 5600 3500 50 0001 C CNN 1 5600 3500 1 0 0 -1 $EndComp $Sheet S 2800 1700 1300 1000 U 5CC2B452 F0 "Power Part" 50 F1 "power_part.sch" 50 F2 "BAT+" I L 2800 1900 50 F3 "CFET" I R 4100 2400 50 F4 "DFET" I R 4100 2500 50 F5 "PCFET" I R 4100 2600 50 F6 "EXT+" I R 4100 1900 50 F7 "V_EXT" O R 4100 2000 50 F8 "CHG+" O R 4100 2200 50 F9 "CSI2" O L 2800 2100 50 F10 "BAT-" I L 2800 2500 50 $EndSheet $Comp L Connector_Generic:Conn_02x07_Top_Bottom J1 U 1 1 5CD862E3 P 2100 4600 F 0 "J1" H 2150 5000 50 0000 C CNN F 1 "Conn_01x10" H 2150 4200 50 0000 C CNN F 2 "Connector_Molex:Molex_Micro-Fit_3.0_43045-1400_2x07_P3.00mm_Horizontal" H 2100 4600 50 0001 C CNN F 3 "~" H 2100 4600 50 0001 C CNN F 4 "Würth" H 2100 4600 50 0001 C CNN "Manufacturer" F 5 "66201421022" H 2100 4600 50 0001 C CNN "PartNumber" 1 2100 4600 1 0 0 -1 $EndComp Wire Wire Line 1900 4800 1700 4800 Wire Wire Line 1900 4300 1800 4300 $Comp L power:GND #PWR0101 U 1 1 5CD9F38F P 1200 4500 F 0 "#PWR0101" H 1200 4250 50 0001 C CNN F 1 "GND" H 1205 4327 50 0000 C CNN F 2 "" H 1200 4500 50 0001 C CNN F 3 "" H 1200 4500 50 0001 C CNN 1 1200 4500 1 0 0 -1 $EndComp Wire Wire Line 1200 4400 1200 4500 Wire Wire Line 1200 4400 1800 4400 Wire Wire Line 1800 4300 1800 4400 Connection ~ 1800 4400 Wire Wire Line 1800 4400 1900 4400 $Comp L Connector:USB_B_Micro J3 U 1 1 5CC29143 P 10000 1700 F 0 "J3" H 9771 1691 50 0000 R CNN F 1 "USB_B_Micro" H 10200 2050 50 0000 R CNN F 2 "LibreSolar:USB_Micro-B_10103594-0001LF" H 10150 1650 50 0001 C CNN F 3 "~" H 10150 1650 50 0001 C CNN F 4 "Amphenol FCI" H 10000 1700 50 0001 C CNN "Manufacturer" F 5 "10103594-0001LF" H 10000 1700 50 0001 C CNN "PartNumber" 1 10000 1700 -1 0 0 -1 $EndComp $Comp L LibreSolar:UEXT J? U 1 1 5CC2FE37 P 9100 3000 AR Path="/58AF4F23/5CC2FE37" Ref="J?" Part="1" AR Path="/5CC2FE37" Ref="J2" Part="1" F 0 "J2" H 8850 3750 50 0000 L CNN F 1 "UEXT" H 9350 3750 50 0000 R CNN F 2 "LibreSolar:Box_Header_2x05x2.54mm_Straight" H 9100 2050 50 0001 C CIN F 3 "" H 9100 2900 60 0000 C CNN F 4 "Würth" H 9100 3000 60 0001 C CNN "Manufacturer" F 5 "61201021621" H 9100 3000 60 0001 C CNN "PartNumber" 1 9100 3000 -1 0 0 -1 $EndComp $Comp L Connector:Screw_Terminal_01x01 P? U 1 1 5CC45AB6 P 1200 1900 AR Path="/5CC2B452/5CC45AB6" Ref="P?" Part="1" AR Path="/5CC45AB6" Ref="P1" Part="1" F 0 "P1" H 1200 2000 50 0000 C CNN F 1 "CONN_01X01" V 1300 1900 50 0000 C CNN F 2 "LibreSolar:Wuerth_WP-THRBU_74650195" H 1200 1900 50 0001 C CNN F 3 "" H 1200 1900 50 0000 C CNN F 4 "Wuerth" H -400 -400 60 0001 C CNN "Manufacturer" F 5 "74650195" H -400 -400 60 0001 C CNN "PartNumber" 1 1200 1900 -1 0 0 1 $EndComp $Comp L Connector:Screw_Terminal_01x01 P? U 1 1 5CC4AF57 P 5500 1900 AR Path="/5CC2B452/5CC4AF57" Ref="P?" Part="1" AR Path="/5CC4AF57" Ref="P3" Part="1" F 0 "P3" H 5500 2000 50 0000 C CNN F 1 "CONN_01X01" V 5600 1900 50 0000 C CNN F 2 "LibreSolar:Wuerth_WP-THRBU_74650195" H 5500 1900 50 0001 C CNN F 3 "" H 5500 1900 50 0000 C CNN F 4 "Wuerth" H 5500 1900 60 0001 C CNN "Manufacturer" 1 5500 1900 1 0 0 -1 $EndComp $Comp L Connector:Screw_Terminal_01x01 P? U 1 1 5CC4AF60 P 5500 2500 AR Path="/5CC2B452/5CC4AF60" Ref="P?" Part="1" AR Path="/5CC4AF60" Ref="P4" Part="1" F 0 "P4" H 5500 2600 50 0000 C CNN F 1 "CONN_01X01" V 5600 2500 50 0000 C CNN F 2 "LibreSolar:Wuerth_WP-THRBU_74650195" H 5500 2500 50 0001 C CNN F 3 "" H 5500 2500 50 0000 C CNN F 4 "Wuerth" H -1000 -2300 60 0001 C CNN "Manufacturer" F 5 "74650195" H -1000 -2300 60 0001 C CNN "PartNumber" 1 5500 2500 1 0 0 -1 $EndComp Wire Wire Line 2800 1900 2500 1900 Wire Wire Line 8700 2700 7700 2700 Wire Wire Line 8700 2600 7700 2600 Wire Wire Line 7700 2200 7800 2200 Wire Wire Line 7800 2200 7800 1700 Wire Wire Line 7800 1700 9700 1700 Wire Wire Line 7900 1800 7900 2300 Wire Wire Line 7900 2300 7700 2300 Wire Wire Line 9700 1800 7900 1800 $Comp L power:GND #PWR0115 U 1 1 5CC5FD50 P 9200 3800 F 0 "#PWR0115" H 9200 3550 50 0001 C CNN F 1 "GND" H 9205 3627 50 0000 C CNN F 2 "" H 9200 3800 50 0001 C CNN F 3 "" H 9200 3800 50 0001 C CNN 1 9200 3800 1 0 0 -1 $EndComp $Comp L power:GND #PWR0116 U 1 1 5CC5FD77 P 10000 2300 F 0 "#PWR0116" H 10000 2050 50 0001 C CNN F 1 "GND" H 10005 2127 50 0000 C CNN F 2 "" H 10000 2300 50 0001 C CNN F 3 "" H 10000 2300 50 0001 C CNN 1 10000 2300 1 0 0 -1 $EndComp Wire Wire Line 10000 2100 10000 2200 Wire Wire Line 10000 2200 10100 2200 Wire Wire Line 10100 2200 10100 2100 Connection ~ 10000 2200 Wire Wire Line 10000 2200 10000 2300 $Comp L Project:R R? U 1 1 5CC66B20 P 9600 2100 AR Path="/58AF4F23/5CC66B20" Ref="R?" Part="1" AR Path="/58E2D38D/5CC66B20" Ref="R?" Part="1" AR Path="/5CC66B20" Ref="R27" Part="1" F 0 "R27" V 9525 2100 50 0000 C CNN F 1 "330k" V 9675 2100 50 0000 C CNN F 2 "LibreSolar:R_0603_1608" V 9425 2000 50 0001 C CNN F 3 "" H 9600 2100 50 0000 C CNN F 4 "Yageo" H 5700 -1050 50 0001 C CNN "Manufacturer" F 5 "RC0603FR-07330KL" H 5700 -1050 50 0001 C CNN "PartNumber" 1 9600 2100 1 0 0 -1 $EndComp $Comp L power:GND #PWR0117 U 1 1 5CC67BEF P 9600 2300 F 0 "#PWR0117" H 9600 2050 50 0001 C CNN F 1 "GND" H 9605 2127 50 0000 C CNN F 2 "" H 9600 2300 50 0001 C CNN F 3 "" H 9600 2300 50 0001 C CNN 1 9600 2300 1 0 0 -1 $EndComp Wire Wire Line 9700 1900 9600 1900 Wire Wire Line 9600 1900 9600 2000 Wire Wire Line 9600 2200 9600 2300 $Comp L power:+3.3V #PWR0118 U 1 1 5CC6B19A P 8600 2100 F 0 "#PWR0118" H 8600 1950 50 0001 C CNN F 1 "+3.3V" H 8615 2273 50 0000 C CNN F 2 "" H 8600 2100 50 0001 C CNN F 3 "" H 8600 2100 50 0001 C CNN 1 8600 2100 1 0 0 -1 $EndComp Wire Wire Line 8700 2400 8600 2400 Wire Wire Line 8600 2400 8600 2200 Wire Wire Line 9200 3800 9200 3700 Wire Wire Line 7700 3200 8700 3200 Wire Wire Line 8700 3300 7700 3300 Wire Wire Line 7700 3400 8700 3400 Wire Wire Line 8700 3500 7700 3500 $Comp L Project:RJ45_NS JP? U 1 1 5CC865E7 P 9950 5550 AR Path="/58AF4F23/5CC865E7" Ref="JP?" Part="1" AR Path="/5CC865E7" Ref="JP2" Part="1" F 0 "JP2" H 10150 6050 50 0000 C CNN F 1 "RJ45_NS" H 9800 6050 50 0000 C CNN F 2 "LibreSolar:RJ45_8P8C" H 9950 5550 50 0001 C CNN F 3 "" H 9950 5550 50 0001 C CNN F 4 "FCI / Amphenol" H 2525 2225 50 0001 C CNN "Manufacturer" F 5 "54602-908LF" H 2525 2225 50 0001 C CNN "PartNumber" 1 9950 5550 0 1 1 0 $EndComp $Comp L Project:RJ45_NS JP? U 1 1 5CC865F0 P 9950 4550 AR Path="/58AF4F23/5CC865F0" Ref="JP?" Part="1" AR Path="/5CC865F0" Ref="JP1" Part="1" F 0 "JP1" H 10150 5050 50 0000 C CNN F 1 "RJ45_NS" H 9800 5050 50 0000 C CNN F 2 "LibreSolar:RJ45_8P8C" H 9950 4550 50 0001 C CNN F 3 "" H 9950 4550 50 0001 C CNN F 4 "FCI / Amphenol" H 875 1225 50 0001 C CNN "Manufacturer" F 5 "54602-908LF" H 875 1225 50 0001 C CNN "PartNumber" 1 9950 4550 0 1 1 0 $EndComp Text Label 9100 5800 0 50 ~ 0 CAN_GND Text Label 8800 4600 0 50 ~ 0 CAN_V+ Text Label 9100 4800 0 50 ~ 0 CAN_GND Text Label 8800 4400 0 50 ~ 0 CAN_GND Wire Wire Line 8300 5200 9500 5200 Wire Wire Line 8200 5300 9500 5300 Wire Wire Line 8500 4400 8500 4800 Wire Wire Line 8500 4400 9500 4400 Wire Wire Line 8500 4800 9500 4800 Wire Wire Line 8500 4800 8500 5400 Connection ~ 8500 4800 Wire Wire Line 8500 5400 8500 5800 Wire Wire Line 8500 5800 9500 5800 Connection ~ 8500 5400 $Comp L power:GND #PWR0120 U 1 1 5CCBF1D5 P 7800 5900 F 0 "#PWR0120" H 7800 5650 50 0001 C CNN F 1 "GND" H 7805 5727 50 0000 C CNN F 2 "" H 7800 5900 50 0001 C CNN F 3 "" H 7800 5900 50 0001 C CNN 1 7800 5900 1 0 0 -1 $EndComp Wire Wire Line 9500 4500 9400 4500 $Sheet S 6300 2000 1400 2200 U 58E2D38D F0 "MCU" 50 F1 "mcu.sch" 50 F2 "I2C1_SDA" B R 7700 3000 50 F3 "I2C1_SCL" O R 7700 2900 50 F4 "SPI1_MOSI" O R 7700 3300 50 F5 "SPI1_MISO" I R 7700 3200 50 F6 "SPI1_SCK" O R 7700 3400 50 F7 "USART2_RX" I R 7700 2700 50 F8 "USART2_TX" O R 7700 2600 50 F9 "SSEL" O R 7700 3500 50 F10 "I2C2_SCL" O L 6300 3700 50 F11 "I2C2_SDA" B L 6300 3600 50 F12 "ALERT_IN" I L 6300 3900 50 F13 "SW_POWER" I L 6300 4000 50 F14 "CAN_H" O R 7700 3700 50 F15 "CAN_L" O R 7700 3800 50 F16 "USB_D-" B R 7700 2300 50 F17 "USB_D+" B R 7700 2200 50 F18 "V_EXT" I L 6300 2900 50 $EndSheet Wire Wire Line 7700 3700 8000 3700 Wire Wire Line 8300 4200 9500 4200 Wire Wire Line 7700 3800 7900 3800 Wire Wire Line 8200 4300 9500 4300 Wire Wire Line 8300 4200 8300 5200 Wire Wire Line 8200 4300 8200 5300 Wire Wire Line 8000 3700 8000 4200 Wire Wire Line 8000 4200 8300 4200 Connection ~ 8300 4200 Wire Wire Line 8200 4300 7900 4300 Wire Wire Line 7900 4300 7900 3800 Connection ~ 8200 4300 Wire Wire Line 2400 4300 2800 4300 Wire Wire Line 2400 4400 2800 4400 Wire Wire Line 2400 4500 2800 4500 Wire Wire Line 2400 4600 2800 4600 Wire Wire Line 2400 4700 2800 4700 Wire Wire Line 2400 4800 2800 4800 Wire Wire Line 1700 4800 1700 5300 Wire Wire Line 1700 5300 2800 5300 Wire Wire Line 2800 5400 1600 5400 Wire Wire Line 1600 5400 1600 4700 Wire Wire Line 1600 4700 1900 4700 Wire Wire Line 2800 5500 1500 5500 Wire Wire Line 1500 5500 1500 4600 Wire Wire Line 1500 4600 1900 4600 Wire Wire Line 1400 4500 1400 5600 Wire Wire Line 1400 5600 2800 5600 Wire Wire Line 1400 4500 1900 4500 Wire Wire Line 2800 4000 2000 4000 Wire Wire Line 2000 4000 2000 1900 Connection ~ 2000 1900 Wire Wire Line 1900 4900 1800 4900 Wire Wire Line 1800 4900 1800 5100 Wire Wire Line 2800 5000 2500 5000 Wire Wire Line 2500 5000 2500 4900 Wire Wire Line 2500 4900 2400 4900 Wire Wire Line 1800 5100 2800 5100 Connection ~ 4800 1900 Wire Wire Line 4800 1900 4400 1900 Text Label 5000 2500 0 50 ~ 0 BAT- $Comp L Project:R R? U 1 1 5C985FEA P 8400 2400 AR Path="/58AF4F23/5C985FEA" Ref="R?" Part="1" AR Path="/58E2D38D/5C985FEA" Ref="R?" Part="1" AR Path="/5C985FEA" Ref="R66" Part="1" F 0 "R66" V 8330 2400 50 0000 C CNN F 1 "2.2k" V 8470 2400 50 0000 C CNN F 2 "LibreSolar:R_0603_1608" H 8400 2400 50 0001 C CNN F 3 "" H 8400 2400 50 0000 C CNN F 4 "Yageo" H 3250 -2950 50 0001 C CNN "Manufacturer" F 5 "RC0603FR-072K2L" H 3250 -2950 50 0001 C CNN "PartNumber" 1 8400 2400 1 0 0 1 $EndComp $Comp L Project:R R? U 1 1 5C985FF3 P 8100 2400 AR Path="/58AF4F23/5C985FF3" Ref="R?" Part="1" AR Path="/58E2D38D/5C985FF3" Ref="R?" Part="1" AR Path="/5C985FF3" Ref="R65" Part="1" F 0 "R65" V 8030 2400 50 0000 C CNN F 1 "2.2k" V 8170 2400 50 0000 C CNN F 2 "LibreSolar:R_0603_1608" H 8100 2400 50 0001 C CNN F 3 "" H 8100 2400 50 0000 C CNN F 4 "Yageo" H 3300 -2950 50 0001 C CNN "Manufacturer" F 5 "RC0603FR-072K2L" H 3300 -2950 50 0001 C CNN "PartNumber" 1 8100 2400 1 0 0 1 $EndComp Wire Wire Line 8600 2200 8400 2200 Wire Wire Line 8400 2200 8400 2300 Connection ~ 8600 2200 Wire Wire Line 8600 2200 8600 2100 Wire Wire Line 8100 2300 8100 2200 Wire Wire Line 8100 2200 8400 2200 Connection ~ 8400 2200 Wire Wire Line 7700 3000 8400 3000 Wire Wire Line 7700 2900 8100 2900 Wire Wire Line 8400 2500 8400 3000 Connection ~ 8400 3000 Wire Wire Line 8400 3000 8700 3000 Wire Wire Line 8100 2500 8100 2900 Connection ~ 8100 2900 Wire Wire Line 8100 2900 8700 2900 $Sheet S 2800 3500 1300 2300 U 5C64ED50 F0 "ISL94202" 50 F1 "isl94202.sch" 50 F2 "SDA" B R 4100 4800 50 F3 "SCL" I R 4100 4900 50 F4 "RGO" O R 4100 5400 50 F5 "CELL8+" I L 2800 4800 50 F6 "CELL7+" I L 2800 5300 50 F7 "CELL6+" I L 2800 4700 50 F8 "CELL5+" I L 2800 5400 50 F9 "CELL4+" I L 2800 4600 50 F10 "CELL3+" I L 2800 5500 50 F11 "CELL2+" I L 2800 4500 50 F12 "CELL1+" I L 2800 5600 50 F13 "CELL1-" I L 2800 4400 50 F14 "BAT+" I L 2800 4000 50 F15 "CHG+" I R 4100 4400 50 F16 "EXT+" I R 4100 4600 50 F17 "NTC_BAT" I L 2800 4300 50 F18 "BTN_1" I L 2800 5000 50 F19 "BTN_2" I L 2800 5100 50 F20 "CSI1" I L 2800 3800 50 F21 "CSI2" I L 2800 3700 50 F22 "CFET" O R 4100 3900 50 F23 "PCFET" O R 4100 3700 50 F24 "DFET" O R 4100 3800 50 F25 "BTN_SIGNAL" O R 4100 5200 50 F26 "ALERT" O R 4100 5100 50 $EndSheet Wire Wire Line 2800 2100 2300 2100 Wire Wire Line 2300 2100 2300 3700 Wire Wire Line 2300 3700 2800 3700 Wire Wire Line 2800 3800 2200 3800 Wire Wire Line 2200 3800 2200 1900 Connection ~ 2200 1900 Text Label 1800 1900 2 50 ~ 0 BAT+ Wire Wire Line 4100 2600 4300 2600 Wire Wire Line 4300 2600 4300 3700 Wire Wire Line 4300 3700 4100 3700 Wire Wire Line 4100 3800 4400 3800 Wire Wire Line 4400 3800 4400 2500 Wire Wire Line 4400 2500 4100 2500 Wire Wire Line 4100 2400 4500 2400 Wire Wire Line 4500 2400 4500 3900 Wire Wire Line 4500 3900 4100 3900 Wire Wire Line 4100 2200 4700 2200 Wire Wire Line 4700 2200 4700 4400 Wire Wire Line 4700 4400 4100 4400 Wire Wire Line 4800 4600 4100 4600 Wire Wire Line 4800 1900 4800 4600 Text Label 6200 5200 0 50 ~ 0 BAT+ Wire Wire Line 4100 5400 5800 5400 Wire Wire Line 5100 3600 5100 4800 Wire Wire Line 5100 4800 4100 4800 Wire Wire Line 4100 4900 5200 4900 Wire Wire Line 5200 4900 5200 3700 Wire Wire Line 5200 3700 5600 3700 Wire Wire Line 6300 3900 5400 3900 Wire Wire Line 5400 3900 5400 5100 Wire Wire Line 5400 5100 4100 5100 Wire Wire Line 6300 4000 5500 4000 Wire Wire Line 5500 4000 5500 5200 Wire Wire Line 5500 5200 4100 5200 Wire Wire Line 5100 3600 5300 3600 Wire Wire Line 5300 3500 5300 3600 Connection ~ 5300 3600 Wire Wire Line 5300 3600 6300 3600 Wire Wire Line 5600 3500 5600 3700 Connection ~ 5600 3700 Wire Wire Line 5600 3700 6300 3700 Wire Wire Line 4400 1700 4400 1900 Connection ~ 4400 1900 Wire Wire Line 4400 1900 4100 1900 Wire Wire Line 5800 5300 5800 5400 Connection ~ 5800 5400 Wire Wire Line 5800 5400 6500 5400 Wire Wire Line 9000 4900 9000 5900 Wire Wire Line 9000 5900 9500 5900 Wire Wire Line 9000 4900 9500 4900 Wire Wire Line 8900 5700 9500 5700 Wire Wire Line 8900 4700 9500 4700 Wire Wire Line 9500 4600 9400 4600 Wire Wire Line 8900 4700 8900 5700 Wire Wire Line 8700 5600 9400 5600 Wire Wire Line 4100 2000 4700 2000 Wire Wire Line 6300 2900 5800 2900 Text Label 5800 2900 0 50 ~ 0 V_EXT Text Label 4700 2000 2 50 ~ 0 V_EXT $Comp L Mechanical:MountingHole H1 U 1 1 5D031F67 P 1400 7100 F 0 "H1" H 1500 7146 50 0000 L CNN F 1 "MountingHole" H 1500 7055 50 0000 L CNN F 2 "MountingHole:MountingHole_3.2mm_M3_Pad" H 1400 7100 50 0001 C CNN F 3 "~" H 1400 7100 50 0001 C CNN 1 1400 7100 1 0 0 -1 $EndComp $Comp L Mechanical:MountingHole H2 U 1 1 5D037941 P 2500 7100 F 0 "H2" H 2600 7146 50 0000 L CNN F 1 "MountingHole" H 2600 7055 50 0000 L CNN F 2 "MountingHole:MountingHole_3.2mm_M3_Pad" H 2500 7100 50 0001 C CNN F 3 "~" H 2500 7100 50 0001 C CNN 1 2500 7100 1 0 0 -1 $EndComp Wire Wire Line 9700 1500 9600 1500 Wire Wire Line 9600 1500 9600 1300 $Comp L power:+5V #PWR011 U 1 1 5CC6EEA6 P 9600 1200 F 0 "#PWR011" H 9600 1050 50 0001 C CNN F 1 "+5V" H 9615 1373 50 0000 C CNN F 2 "" H 9600 1200 50 0001 C CNN F 3 "" H 9600 1200 50 0001 C CNN 1 9600 1200 1 0 0 -1 $EndComp Wire Wire Line 2000 1900 2200 1900 Wire Wire Line 2500 1700 2500 1900 Connection ~ 2500 1900 Wire Wire Line 2500 1900 2200 1900 $Comp L Connector:Screw_Terminal_01x01 P? U 1 1 5CC45ABF P 1200 2500 AR Path="/5CC2B452/5CC45ABF" Ref="P?" Part="1" AR Path="/5CC45ABF" Ref="P2" Part="1" F 0 "P2" H 1200 2600 50 0000 C CNN F 1 "CONN_01X01" V 1300 2500 50 0000 C CNN F 2 "LibreSolar:Wuerth_WP-THRBU_74650195" H 1200 2500 50 0001 C CNN F 3 "" H 1200 2500 50 0000 C CNN F 4 "Wuerth" H -400 -2300 60 0001 C CNN "Manufacturer" F 5 "74650195" H -400 -2300 60 0001 C CNN "PartNumber" 1 1200 2500 -1 0 0 1 $EndComp Wire Wire Line 1400 1900 2000 1900 Wire Wire Line 4800 1900 5300 1900 Wire Wire Line 5000 2500 5300 2500 Text Label 1800 2500 2 50 ~ 0 BAT- Wire Wire Line 1400 2500 1800 2500 Wire Wire Line 2500 2500 2800 2500 Text Label 2500 2500 0 50 ~ 0 BAT- Text Label 5000 1900 0 50 ~ 0 EXT+ Text Notes 1500 6200 0 50 ~ 0 Plug: Würth WR-MPC3\nPart-no. 662014113322\nUse low force crimp contacts! $Comp L power:GND #PWR015 U 1 1 5F0E3C35 P 9000 1400 F 0 "#PWR015" H 9000 1150 50 0001 C CNN F 1 "GND" H 9005 1227 50 0000 C CNN F 2 "" H 9000 1400 50 0001 C CNN F 3 "" H 9000 1400 50 0001 C CNN 1 9000 1400 1 0 0 -1 $EndComp $Comp L Project:R R? U 1 1 5F0EB063 P 9300 1300 AR Path="/58AF4F23/5F0EB063" Ref="R?" Part="1" AR Path="/58E2D38D/5F0EB063" Ref="R?" Part="1" AR Path="/5F0EB063" Ref="R73" Part="1" F 0 "R73" V 9225 1300 50 0000 C CNN F 1 "330k" V 9375 1300 50 0000 C CNN F 2 "LibreSolar:R_0603_1608" V 9125 1200 50 0001 C CNN F 3 "" H 9300 1300 50 0000 C CNN F 4 "Yageo" H 5400 -1850 50 0001 C CNN "Manufacturer" F 5 "RC0603FR-07330KL" H 5400 -1850 50 0001 C CNN "PartNumber" 1 9300 1300 0 1 1 0 $EndComp Wire Wire Line 9600 1300 9400 1300 Connection ~ 9600 1300 Wire Wire Line 9600 1300 9600 1200 Wire Wire Line 9200 1300 9000 1300 Wire Wire Line 9000 1300 9000 1400 Text Notes 1900 1100 0 200 ~ 0 Libre Solar BMS for 3-8 cells Text Label 9100 5400 0 50 ~ 0 CAN_GND Wire Wire Line 8500 5400 9500 5400 Wire Wire Line 9400 4500 9400 4600 Wire Wire Line 9400 5500 9400 5600 Wire Wire Line 9400 5500 9500 5500 Connection ~ 9400 5600 Wire Wire Line 9400 5600 9500 5600 Wire Wire Line 9400 4600 8700 4600 Wire Wire Line 8700 4600 8700 5600 Connection ~ 9400 4600 Text Label 7000 4600 0 50 ~ 0 EXT+ $Comp L LibreSolar:D_Schottky D11 U 1 1 604A441C P 7700 4600 F 0 "D11" H 7700 4384 50 0000 C CNN F 1 "NRVTS260ESFT1G" H 7700 4475 50 0000 C CNN F 2 "Diode_SMD:D_SOD-123" H 7600 4600 50 0001 C CNN F 3 "" H 7700 4700 50 0001 C CNN F 4 "On Semiconductor" H 7700 4600 50 0001 C CNN "Manufacturer" F 5 "NRVTS260ESFT1G" H 7700 4600 50 0001 C CNN "PartNumber" F 6 "Alternative: Nexperia PMEG6020ER,115" H 7700 4600 50 0001 C CNN "Remarks" 1 7700 4600 -1 0 0 1 $EndComp Wire Wire Line 8700 4600 7800 4600 Connection ~ 8700 4600 Wire Wire Line 7600 4600 7000 4600 $Comp L LibreSolar:D_Schottky D12 U 1 1 604BC955 P 8000 5800 F 0 "D12" H 8000 6016 50 0000 C CNN F 1 "NRVTS260ESFT1G" H 8000 5925 50 0000 C CNN F 2 "Diode_SMD:D_SOD-123" H 7900 5800 50 0001 C CNN F 3 "" H 8000 5900 50 0001 C CNN F 4 "On Semiconductor" H 8000 5800 50 0001 C CNN "Manufacturer" F 5 "NRVTS260ESFT1G" H 8000 5800 50 0001 C CNN "PartNumber" F 6 "Alternative: Nexperia PMEG6020ER,115" H 8000 5800 50 0001 C CNN "Remarks" 1 8000 5800 1 0 0 -1 $EndComp Wire Wire Line 7800 5800 7800 5900 Wire Wire Line 8500 5800 8100 5800 Connection ~ 8500 5800 Wire Wire Line 7900 5800 7800 5800 Wire Wire Line 6500 5200 6200 5200 $EndSCHEMATC