EESchema Schematic File Version 2 date Son 24 Jun 2012 16:52:02 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 "24 jun 2012" Rev "1" Comp "mur.sat - A Space Art Project" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Wire Wire Line 3050 3100 3800 3100 Wire Wire Line 3800 3200 3750 3200 Wire Wire Line 6950 3000 6950 3200 Wire Wire Line 6550 3900 6550 3700 Wire Wire Line 6550 3900 6650 3900 Wire Wire Line 3100 3350 3100 3300 Wire Wire Line 3100 3300 3050 3300 Connection ~ 4800 3000 Wire Wire Line 5450 3200 5400 3200 Wire Wire Line 6950 3600 6950 3650 Wire Wire Line 4800 3550 4800 3600 Wire Wire Line 4950 3000 4950 3050 Wire Wire Line 6550 3200 6550 3000 Connection ~ 4950 3700 Wire Wire Line 4950 3550 4950 3700 Wire Wire Line 5900 3950 5900 3900 Wire Wire Line 6550 3200 6450 3200 Wire Wire Line 6550 3700 6450 3700 Wire Wire Line 5450 3700 4700 3700 Wire Wire Line 4800 3000 4800 3050 Wire Wire Line 5450 3600 4700 3600 Connection ~ 4800 3600 Connection ~ 4950 3000 Wire Wire Line 3050 3000 6950 3000 Connection ~ 6550 3000 Wire Wire Line 6650 4300 6550 4300 Wire Wire Line 6550 4300 6550 4350 Wire Wire Line 3250 3200 3050 3200 Wire Wire Line 3800 2900 3050 2900 $Comp L R R4 U 1 1 4FE727BE P 3500 3200 F 0 "R4" V 3600 3200 50 0000 C CNN F 1 "0R0" V 3500 3200 50 0000 C CNN 1 3500 3200 0 1 1 0 $EndComp Text Label 6550 4300 2 60 ~ 0 - Text Label 6550 3900 2 60 ~ 0 + Text Label 3800 3000 0 60 ~ 0 PWR $Comp L CONN_1 P3 U 1 1 4FE64398 P 6800 4300 F 0 "P3" H 6880 4300 40 0000 L CNN F 1 "-" H 6800 4355 30 0001 C CNN 1 6800 4300 1 0 0 -1 $EndComp $Comp L CONN_1 P2 U 1 1 4FE6438F P 6800 3900 F 0 "P2" H 6880 3900 40 0000 L CNN F 1 "+" H 6800 3955 30 0001 C CNN 1 6800 3900 1 0 0 -1 $EndComp $Comp L GND #PWR01 U 1 1 4FE64367 P 3100 3350 F 0 "#PWR01" H 3100 3350 30 0001 C CNN F 1 "GND" H 3100 3280 30 0001 C CNN 1 3100 3350 1 0 0 -1 $EndComp Text Label 3800 2900 0 60 ~ 0 SDA Text Label 3800 3100 0 60 ~ 0 SCL Text Label 3800 3200 0 60 ~ 0 ALARM $Comp L CONN_5 P1 U 1 1 4FE642F8 P 2650 3100 F 0 "P1" V 2600 3100 50 0000 C CNN F 1 "BATT" V 2700 3100 50 0000 C CNN 1 2650 3100 -1 0 0 -1 $EndComp Text Label 5400 3200 2 60 ~ 0 ALARM $Comp L GND #PWR02 U 1 1 4F71D423 P 6950 3650 F 0 "#PWR02" H 6950 3650 30 0001 C CNN F 1 "GND" H 6950 3580 30 0001 C CNN 1 6950 3650 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 4F71D412 P 6950 3400 F 0 "C1" H 6850 3500 50 0000 L CNN F 1 "100nF" H 6700 3300 50 0000 L CNN 1 6950 3400 -1 0 0 1 $EndComp $Comp L R R1 U 1 1 4F71C70E P 4800 3300 F 0 "R1" V 4700 3300 50 0000 C CNN F 1 "3k3" V 4800 3300 50 0000 C CNN 1 4800 3300 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 4F71C709 P 4950 3300 F 0 "R2" V 5030 3300 50 0000 C CNN F 1 "3k3" V 4950 3300 50 0000 C CNN 1 4950 3300 1 0 0 -1 $EndComp $Comp L GND #PWR03 U 1 1 4F7106EC P 5900 3950 F 0 "#PWR03" H 5900 3950 30 0001 C CNN F 1 "GND" H 5900 3880 30 0001 C CNN 1 5900 3950 1 0 0 -1 $EndComp $Comp L R R3 U 1 1 4F710666 P 6550 3450 F 0 "R3" V 6630 3450 50 0000 C CNN F 1 "10m/1W" V 6550 3450 50 0000 C CNN 1 6550 3450 1 0 0 -1 $EndComp Text Label 4700 3700 2 60 ~ 0 SDA $Comp L LTC2942 U1 U 1 1 4F7103BE P 5950 3450 F 0 "U1" H 5950 3500 60 0000 C CNN F 1 "LTC2942" H 5950 3400 60 0000 C CNN 1 5950 3450 1 0 0 -1 $EndComp Text Label 4700 3600 2 60 ~ 0 SCL $Comp L GND #PWR04 U 1 1 4F54279E P 6550 4350 F 0 "#PWR04" H 6550 4350 30 0001 C CNN F 1 "GND" H 6550 4280 30 0001 C CNN 1 6550 4350 1 0 0 -1 $EndComp $EndSCHEMATC