EESchema Schematic File Version 2 date Mit 04 Jul 2012 03:19:41 CEST LIBS:power LIBS:device LIBS:transistors LIBS:conn LIBS:linear LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:adc-dac LIBS:memory LIBS:xilinx LIBS:special LIBS:microcontrollers LIBS:dsp LIBS:microchip LIBS:analog_switches LIBS:motorola LIBS:texas LIBS:intel LIBS:audio LIBS:interface LIBS:digital-audio LIBS:philips LIBS:display LIBS:cypress LIBS:siliconi LIBS:opto LIBS:atmel LIBS:contrib LIBS:valves LIBS:mur-sat LIBS:battmon-cache EELAYER 24 0 EELAYER END $Descr A4 11700 8267 Sheet 1 1 Title "Battery Monitor" Date "4 jul 2012" Rev "1" Comp "mur.sat - A Space Art Project" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Wire Wire Line 2450 3700 2400 3700 Wire Wire Line 2450 3400 2400 3400 Connection ~ 3250 3100 Wire Wire Line 3250 3050 3250 3100 Connection ~ 3550 4000 Wire Wire Line 3550 4050 3550 4000 Connection ~ 2950 4000 Wire Wire Line 2950 4050 2950 4000 Wire Wire Line 3300 3950 3300 4000 Wire Wire Line 3300 4000 3200 4000 Wire Wire Line 3200 4000 3200 3950 Wire Wire Line 3600 3150 3600 3100 Wire Wire Line 3600 3100 3500 3100 Wire Wire Line 3500 3100 3500 3150 Wire Wire Line 3000 3150 3000 3100 Wire Wire Line 3000 3100 2900 3100 Wire Wire Line 2900 3100 2900 3150 Connection ~ 5800 4950 Connection ~ 5800 2150 Wire Wire Line 3400 4050 3400 3950 Wire Wire Line 3800 4050 3800 3950 Wire Wire Line 3700 3050 3700 3150 Wire Wire Line 3100 3150 3100 3050 Connection ~ 5650 3550 Wire Wire Line 4900 3550 7800 3550 Connection ~ 7400 3550 Wire Wire Line 5800 3550 5800 3600 Connection ~ 5650 2750 Wire Wire Line 6300 2750 5550 2750 Wire Wire Line 5650 2150 5650 2200 Wire Wire Line 6300 2850 5550 2850 Wire Wire Line 7300 2850 7400 2850 Wire Wire Line 7300 2350 7400 2350 Wire Wire Line 6750 3100 6750 3050 Wire Wire Line 5800 2700 5800 2850 Connection ~ 5800 2850 Wire Wire Line 7400 2350 7400 2150 Wire Wire Line 5800 2150 5800 2200 Wire Wire Line 5650 2700 5650 2750 Wire Wire Line 7800 2750 7800 2800 Wire Wire Line 6300 2350 6250 2350 Wire Wire Line 7800 2350 7800 2150 Wire Wire Line 7850 3050 7400 3050 Wire Wire Line 7400 3050 7400 2850 Wire Wire Line 7400 4450 7400 4250 Wire Wire Line 7400 4450 7850 4450 Wire Wire Line 7800 3550 7800 3750 Wire Wire Line 6300 3750 6250 3750 Wire Wire Line 7800 4150 7800 4200 Wire Wire Line 5650 4100 5650 4150 Wire Wire Line 7400 3550 7400 3750 Connection ~ 5800 4250 Wire Wire Line 5800 4100 5800 4250 Wire Wire Line 6750 4500 6750 4450 Wire Wire Line 7400 3750 7300 3750 Wire Wire Line 7400 4250 7300 4250 Wire Wire Line 6300 4250 5550 4250 Wire Wire Line 5650 3550 5650 3600 Wire Wire Line 6300 4150 5550 4150 Connection ~ 5650 4150 Connection ~ 5650 5550 Wire Wire Line 6300 5550 5550 5550 Wire Wire Line 5650 4950 5650 5000 Wire Wire Line 6300 5650 5550 5650 Wire Wire Line 7300 5650 7400 5650 Wire Wire Line 7300 5150 7400 5150 Wire Wire Line 6750 5900 6750 5850 Wire Wire Line 5800 5500 5800 5650 Connection ~ 5800 5650 Wire Wire Line 7400 5150 7400 4950 Wire Wire Line 5800 4950 5800 5000 Wire Wire Line 5650 5500 5650 5550 Wire Wire Line 7800 5550 7800 5600 Wire Wire Line 6300 5150 6250 5150 Wire Wire Line 7800 5150 7800 4950 Wire Wire Line 7850 5850 7400 5850 Wire Wire Line 7400 5850 7400 5650 Connection ~ 5800 3550 Wire Wire Line 3400 3050 3400 3150 Wire Wire Line 3800 3050 3800 3150 Wire Wire Line 3700 4050 3700 3950 Wire Wire Line 3100 4050 3100 3950 Connection ~ 7400 2150 Wire Wire Line 7800 2150 4900 2150 Connection ~ 5650 2150 Connection ~ 7400 4950 Wire Wire Line 7800 4950 4900 4950 Connection ~ 5650 4950 Wire Wire Line 3200 3150 3200 3100 Wire Wire Line 3200 3100 3300 3100 Wire Wire Line 3300 3100 3300 3150 Wire Wire Line 3600 3950 3600 4000 Wire Wire Line 3600 4000 3500 4000 Wire Wire Line 3500 4000 3500 3950 Wire Wire Line 2900 3950 2900 4000 Wire Wire Line 2900 4000 3000 4000 Wire Wire Line 3000 4000 3000 3950 Wire Wire Line 3250 4050 3250 4000 Connection ~ 3250 4000 Wire Wire Line 3550 3050 3550 3100 Connection ~ 3550 3100 Wire Wire Line 2950 3050 2950 3100 Connection ~ 2950 3100 Wire Wire Line 2450 3550 2400 3550 $Comp L GND #PWR? U 1 1 4FF39A20 P 2400 3700 F 0 "#PWR?" H 2400 3700 30 0001 C CNN F 1 "GND" H 2400 3630 30 0001 C CNN 1 2400 3700 0 1 1 0 $EndComp $Comp L GND #PWR? U 1 1 4FF39A1F P 2400 3550 F 0 "#PWR?" H 2400 3550 30 0001 C CNN F 1 "GND" H 2400 3480 30 0001 C CNN 1 2400 3550 0 1 1 0 $EndComp $Comp L GND #PWR? U 1 1 4FF39A1C P 2400 3400 F 0 "#PWR?" H 2400 3400 30 0001 C CNN F 1 "GND" H 2400 3330 30 0001 C CNN 1 2400 3400 0 1 1 0 $EndComp $Comp L CONN_1 P? U 1 1 4FF39A01 P 2600 3700 F 0 "P?" H 2650 3700 40 0000 L CNN F 1 "BATT2-" H 2600 3755 30 0001 C CNN 1 2600 3700 1 0 0 -1 $EndComp $Comp L CONN_1 P? U 1 1 4FF399FE P 2600 3550 F 0 "P?" H 2650 3550 40 0000 L CNN F 1 "BATT1-" H 2600 3605 30 0001 C CNN 1 2600 3550 1 0 0 -1 $EndComp $Comp L CONN_1 P? U 1 1 4FF399ED P 2600 3400 F 0 "P?" H 2650 3400 40 0000 L CNN F 1 "BATT0-" H 2600 3455 30 0001 C CNN 1 2600 3400 1 0 0 -1 $EndComp $Comp L GND #PWR? U 1 1 4FF39914 P 2950 3050 F 0 "#PWR?" H 2950 3050 30 0001 C CNN F 1 "GND" H 2950 2980 30 0001 C CNN 1 2950 3050 -1 0 0 1 $EndComp $Comp L GND #PWR? U 1 1 4FF39911 P 3250 3050 F 0 "#PWR?" H 3250 3050 30 0001 C CNN F 1 "GND" H 3250 2980 30 0001 C CNN 1 3250 3050 -1 0 0 1 $EndComp $Comp L GND #PWR? U 1 1 4FF3990F P 3550 3050 F 0 "#PWR?" H 3550 3050 30 0001 C CNN F 1 "GND" H 3550 2980 30 0001 C CNN 1 3550 3050 -1 0 0 1 $EndComp Text Label 3550 4050 3 60 ~ 0 BATT2 Text Label 3250 4050 3 60 ~ 0 BATT1 Text Label 2950 4050 3 60 ~ 0 BATT0 Text Label 4900 4950 2 60 ~ 0 BATT2 Text Label 4900 3550 2 60 ~ 0 BATT1 Text Label 4900 2150 2 60 ~ 0 BATT0 $Comp L GND #PWR01 U 1 1 4FE9066B P 3800 3050 F 0 "#PWR01" H 3800 3050 30 0001 C CNN F 1 "GND" H 3800 2980 30 0001 C CNN 1 3800 3050 -1 0 0 1 $EndComp $Comp L CONN_10X2 P1 U 1 1 4FE9063E P 3350 3550 F 0 "P1" H 3350 4100 60 0000 C CNN F 1 "CONN_10X2" V 3350 3450 50 0000 C CNN 1 3350 3550 0 1 1 0 $EndComp Text Label 3700 4050 3 60 ~ 0 BATT2_SDA Text Label 3700 3050 1 60 ~ 0 BATT2_SCL Text Label 3400 4050 3 60 ~ 0 BATT1_SDA Text Label 3400 3050 1 60 ~ 0 BATT1_SCL Text Label 3100 4050 3 60 ~ 0 BATT0_SDA Text Label 3100 3050 1 60 ~ 0 BATT0_SCL Text Label 7500 5850 0 60 ~ 0 BATT2+ $Comp L CONN_1 P4 U 1 1 4FE90104 P 8000 5850 F 0 "P4" H 8080 5850 40 0000 L CNN F 1 "BATT_2" H 8000 5905 30 0001 C CNN 1 8000 5850 1 0 0 -1 $EndComp Text Label 6250 5150 2 60 ~ 0 ALARM $Comp L GND #PWR02 U 1 1 4FE90103 P 7800 5600 F 0 "#PWR02" H 7800 5600 30 0001 C CNN F 1 "GND" H 7800 5530 30 0001 C CNN 1 7800 5600 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 4FE90102 P 7800 5350 F 0 "C3" H 7700 5450 50 0000 L CNN F 1 "100nF" H 7550 5250 50 0000 L CNN 1 7800 5350 -1 0 0 1 $EndComp $Comp L R R3 U 1 1 4FE90101 P 5650 5250 F 0 "R3" V 5550 5250 50 0000 C CNN F 1 "3k3" V 5650 5250 50 0000 C CNN 1 5650 5250 1 0 0 -1 $EndComp $Comp L R R6 U 1 1 4FE90100 P 5800 5250 F 0 "R6" V 5880 5250 50 0000 C CNN F 1 "3k3" V 5800 5250 50 0000 C CNN 1 5800 5250 1 0 0 -1 $EndComp $Comp L GND #PWR03 U 1 1 4FE900FF P 6750 5900 F 0 "#PWR03" H 6750 5900 30 0001 C CNN F 1 "GND" H 6750 5830 30 0001 C CNN 1 6750 5900 1 0 0 -1 $EndComp $Comp L R R9 U 1 1 4FE900FE P 7400 5400 F 0 "R9" V 7480 5400 50 0000 C CNN F 1 "10m/1W" V 7400 5400 50 0000 C CNN 1 7400 5400 1 0 0 -1 $EndComp Text Label 5550 5650 2 60 ~ 0 BATT2_SDA $Comp L LTC2942 U3 U 1 1 4FE900FD P 6800 5400 F 0 "U3" H 6800 5450 60 0000 C CNN F 1 "LTC2942" H 6800 5350 60 0000 C CNN 1 6800 5400 1 0 0 -1 $EndComp Text Label 5550 5550 2 60 ~ 0 BATT2_SCL Text Label 5550 4150 2 60 ~ 0 BATT1_SCL $Comp L LTC2942 U2 U 1 1 4FE900EA P 6800 4000 F 0 "U2" H 6800 4050 60 0000 C CNN F 1 "LTC2942" H 6800 3950 60 0000 C CNN 1 6800 4000 1 0 0 -1 $EndComp Text Label 5550 4250 2 60 ~ 0 BATT1_SDA $Comp L R R8 U 1 1 4FE900E9 P 7400 4000 F 0 "R8" V 7480 4000 50 0000 C CNN F 1 "10m/1W" V 7400 4000 50 0000 C CNN 1 7400 4000 1 0 0 -1 $EndComp $Comp L GND #PWR04 U 1 1 4FE900E8 P 6750 4500 F 0 "#PWR04" H 6750 4500 30 0001 C CNN F 1 "GND" H 6750 4430 30 0001 C CNN 1 6750 4500 1 0 0 -1 $EndComp $Comp L R R5 U 1 1 4FE900E7 P 5800 3850 F 0 "R5" V 5880 3850 50 0000 C CNN F 1 "3k3" V 5800 3850 50 0000 C CNN 1 5800 3850 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 4FE900E6 P 5650 3850 F 0 "R2" V 5550 3850 50 0000 C CNN F 1 "3k3" V 5650 3850 50 0000 C CNN 1 5650 3850 1 0 0 -1 $EndComp $Comp L C C2 U 1 1 4FE900E5 P 7800 3950 F 0 "C2" H 7700 4050 50 0000 L CNN F 1 "100nF" H 7550 3850 50 0000 L CNN 1 7800 3950 -1 0 0 1 $EndComp $Comp L GND #PWR05 U 1 1 4FE900E4 P 7800 4200 F 0 "#PWR05" H 7800 4200 30 0001 C CNN F 1 "GND" H 7800 4130 30 0001 C CNN 1 7800 4200 1 0 0 -1 $EndComp Text Label 6250 3750 2 60 ~ 0 ALARM $Comp L CONN_1 P3 U 1 1 4FE900E3 P 8000 4450 F 0 "P3" H 8080 4450 40 0000 L CNN F 1 "BATT_1" H 8000 4505 30 0001 C CNN 1 8000 4450 1 0 0 -1 $EndComp Text Label 7500 4450 0 60 ~ 0 BATT1+ Text Label 7500 3050 0 60 ~ 0 BATT0+ $Comp L CONN_1 P2 U 1 1 4FE6438F P 8000 3050 F 0 "P2" H 8080 3050 40 0000 L CNN F 1 "BATT_0" H 8000 3105 30 0001 C CNN 1 8000 3050 1 0 0 -1 $EndComp Text Label 3800 4050 3 60 ~ 0 ALARM Text Label 6250 2350 2 60 ~ 0 ALARM $Comp L GND #PWR06 U 1 1 4F71D423 P 7800 2800 F 0 "#PWR06" H 7800 2800 30 0001 C CNN F 1 "GND" H 7800 2730 30 0001 C CNN 1 7800 2800 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 4F71D412 P 7800 2550 F 0 "C1" H 7700 2650 50 0000 L CNN F 1 "100nF" H 7550 2450 50 0000 L CNN 1 7800 2550 -1 0 0 1 $EndComp $Comp L R R1 U 1 1 4F71C70E P 5650 2450 F 0 "R1" V 5550 2450 50 0000 C CNN F 1 "3k3" V 5650 2450 50 0000 C CNN 1 5650 2450 1 0 0 -1 $EndComp $Comp L R R4 U 1 1 4F71C709 P 5800 2450 F 0 "R4" V 5880 2450 50 0000 C CNN F 1 "3k3" V 5800 2450 50 0000 C CNN 1 5800 2450 1 0 0 -1 $EndComp $Comp L GND #PWR07 U 1 1 4F7106EC P 6750 3100 F 0 "#PWR07" H 6750 3100 30 0001 C CNN F 1 "GND" H 6750 3030 30 0001 C CNN 1 6750 3100 1 0 0 -1 $EndComp $Comp L R R7 U 1 1 4F710666 P 7400 2600 F 0 "R7" V 7480 2600 50 0000 C CNN F 1 "10m/1W" V 7400 2600 50 0000 C CNN 1 7400 2600 1 0 0 -1 $EndComp Text Label 5550 2850 2 60 ~ 0 BATT0_SDA $Comp L LTC2942 U1 U 1 1 4F7103BE P 6800 2600 F 0 "U1" H 6800 2650 60 0000 C CNN F 1 "LTC2942" H 6800 2550 60 0000 C CNN 1 6800 2600 1 0 0 -1 $EndComp Text Label 5550 2750 2 60 ~ 0 BATT0_SCL $EndSCHEMATC