Version 4 SHEET 1 3720 1064 WIRE 368 -272 -32 -272 WIRE 544 -272 368 -272 WIRE 816 -272 544 -272 WIRE 1072 -272 960 -272 WIRE 1344 -272 1072 -272 WIRE 816 -240 816 -272 WIRE 544 -224 544 -272 WIRE 672 -224 624 -224 WIRE 704 -224 672 -224 WIRE 768 -224 704 -224 WIRE 1616 -208 1504 -208 WIRE 1744 -208 1744 -240 WIRE 1744 -208 1616 -208 WIRE 960 -192 960 -272 WIRE 672 -144 672 -224 WIRE 672 -144 512 -144 WIRE 1072 -144 1072 -272 WIRE 816 -128 816 -144 WIRE 2096 -128 1456 -128 WIRE 512 -96 512 -144 WIRE 960 -80 960 -112 WIRE 960 -64 960 -80 WIRE -32 -16 -32 -272 WIRE 816 -16 816 -48 WIRE 944 -16 816 -16 WIRE 1072 -16 1072 -64 WIRE 1072 -16 944 -16 WIRE 1184 -16 1072 -16 WIRE 1216 -16 1184 -16 WIRE 1312 -16 1296 -16 WIRE 1392 -16 1312 -16 WIRE 1600 -16 1392 -16 WIRE 1680 -16 1600 -16 WIRE 1840 -16 1760 -16 WIRE 2016 -16 1920 -16 WIRE 2128 -16 2016 -16 WIRE 2304 -16 2224 -16 WIRE 2384 -16 2304 -16 WIRE 2448 -16 2384 -16 WIRE 2928 -16 2448 -16 WIRE 816 0 816 -16 WIRE 368 16 368 -272 WIRE 512 16 512 -16 WIRE 512 16 368 16 WIRE 2928 32 2928 -16 WIRE 1296 80 1232 80 WIRE 1312 80 1312 -16 WIRE 1312 80 1296 80 WIRE 2208 80 2208 32 WIRE 1600 96 1600 -16 WIRE 2016 96 2016 -16 WIRE 816 112 816 80 WIRE 1344 112 1344 -272 WIRE 1296 128 1296 80 WIRE 1312 128 1296 128 WIRE 2928 128 2928 112 WIRE -32 144 -32 64 WIRE 1504 144 1504 -208 WIRE 1504 144 1376 144 WIRE 1184 160 1184 -16 WIRE 1312 160 1184 160 WIRE 576 192 400 192 WIRE 608 192 576 192 WIRE 768 192 608 192 WIRE 1600 192 1600 160 WIRE 1600 192 1552 192 WIRE 2208 192 2208 160 WIRE 2016 208 2016 160 WIRE 2016 208 1984 208 WIRE 2768 208 2608 208 WIRE 2880 208 2768 208 WIRE 1344 224 1344 176 WIRE 192 272 -32 272 WIRE 3200 272 192 272 WIRE 3232 272 3200 272 WIRE 3312 272 3232 272 WIRE 3200 304 3200 272 WIRE 192 320 192 272 WIRE 1072 320 1072 -16 WIRE 2448 320 2448 -16 WIRE 400 336 400 192 WIRE 576 336 576 192 WIRE 2608 352 2608 208 WIRE 2768 352 2768 208 WIRE -32 384 -32 272 WIRE 1072 432 1072 384 WIRE 2304 432 2304 -16 WIRE 2448 432 2448 384 WIRE 400 464 400 416 WIRE -32 512 -32 464 WIRE 192 544 192 400 WIRE 576 544 576 416 WIRE 576 544 192 544 WIRE 816 544 816 208 WIRE 816 544 576 544 WIRE 1072 544 1072 512 WIRE 1072 544 816 544 WIRE 1552 544 1552 192 WIRE 1552 544 1072 544 WIRE 1696 544 1552 544 WIRE 1872 544 1776 544 WIRE 1984 544 1984 208 WIRE 1984 544 1952 544 WIRE 2304 544 2304 512 WIRE 2304 544 1984 544 WIRE 2448 544 2448 512 WIRE 2448 544 2304 544 WIRE 2608 544 2608 432 WIRE 2608 544 2448 544 WIRE 2768 544 2768 432 WIRE 2768 544 2608 544 WIRE 2928 544 2928 224 WIRE 2928 544 2768 544 WIRE 3200 544 3200 384 WIRE 3200 544 2928 544 WIRE 3408 544 3200 544 WIRE 192 560 192 544 WIRE 1184 672 1184 160 WIRE 1184 672 -384 672 WIRE 1232 720 1232 80 WIRE 1232 720 -384 720 WIRE 1456 1040 1456 -128 WIRE 2096 1040 2096 -128 WIRE 2096 1040 1456 1040 FLAG 192 560 0 FLAG 192 272 Vtoline FLAG 3232 272 loadv FLAG -32 144 0 FLAG -32 512 0 FLAG 400 464 0 FLAG 2384 -16 SinkCAN FLAG 944 -16 SourceCAN FLAG 704 -224 topdriv FLAG 608 192 botdriv FLAG 1248 -80 0 FLAG 2208 192 0 FLAG 1344 224 0 FLAG 1616 -208 opendetect FLAG 1392 -16 -vsense FLAG 960 -80 0 SYMBOL res 176 304 R0 SYMATTR InstName R14 SYMATTR Value 100000 SYMBOL res 3184 288 R0 SYMATTR InstName R12 SYMATTR Value 3 SYMBOL ind 1856 560 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L3 SYMATTR Value 6.4µ SYMBOL res 1792 528 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R15 SYMATTR Value 0.0463 SYMBOL nmos 768 112 R0 SYMATTR InstName M5 SYMATTR Value BSS123 SYMBOL res 560 320 R0 SYMATTR InstName R16 SYMATTR Value 1000 SYMBOL voltage -32 368 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR InstName V1 SYMATTR Value 20 SYMBOL cap 1584 96 R0 SYMATTR InstName C1 SYMATTR Value 54p SYMBOL cap 2000 96 R0 SYMATTR InstName C2 SYMATTR Value 54p SYMBOL ind 1664 0 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L1 SYMATTR Value 6.4µ SYMBOL res 1936 -32 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 0.0463 SYMBOL voltage -32 -32 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR SpiceLine Rser=1 SYMATTR InstName V2 SYMATTR Value 3.0 SYMBOL res 2288 416 R0 SYMATTR InstName R2 SYMATTR Value 1000 SYMBOL res 2432 416 R0 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL cap 2432 320 R0 SYMATTR InstName C3 SYMATTR Value 8.3n SYMBOL res 1056 416 R0 SYMATTR InstName R4 SYMATTR Value 100 SYMBOL cap 1056 320 R0 SYMATTR InstName C4 SYMATTR Value 8.3n SYMBOL res 1056 -160 R0 SYMATTR InstName R5 SYMATTR Value 1000 SYMBOL pmos 768 -144 M180 SYMATTR InstName M2 SYMATTR Value Si1555DL_P SYMBOL res 800 -144 R0 SYMATTR InstName R6 SYMATTR Value 270 SYMBOL res 800 -16 R0 SYMATTR InstName R7 SYMATTR Value 27 SYMBOL voltage 400 320 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR SpiceLine Rser=100 Cpar=1000p SYMATTR InstName V4 SYMATTR Value PULSE(0 2.5 1001u 1n 1n 48u 100u 10) SYMBOL res 640 -240 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R8 SYMATTR Value 1000 SYMBOL voltage 512 0 R180 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR SpiceLine Rser=1 SYMATTR InstName V3 SYMATTR Value PULSE(0 2 1000u 1n 1n 3.5m 10m 3) SYMBOL nmos 2880 128 R0 SYMATTR InstName M1 SYMATTR Value BSS123 SYMBOL res 2752 336 R0 SYMATTR InstName R9 SYMATTR Value 1000 SYMBOL voltage 2608 336 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR SpiceLine Rser=100 Cpar=1000p SYMATTR InstName V5 SYMATTR Value PULSE(0 2.5 2101u 1n 1n 48u 100u 10) SYMBOL res 2912 16 R0 SYMATTR InstName R10 SYMATTR Value 27 SYMBOL nmos 2128 32 R270 SYMATTR InstName M3 SYMATTR Value FDC2512 SYMBOL voltage 2208 64 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR SpiceLine Rser=100 Cpar=1000p SYMATTR InstName V7 SYMATTR Value PULSE(6 0 3600u 1n 1n 10m 10m 1) SYMBOL res 1312 -32 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R11 SYMATTR Value 10 SYMBOL Comparators\\LT1017 1344 144 R0 SYMATTR InstName U2 SYMBOL voltage 960 -208 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 SYMATTR SpiceLine Rser=1 SYMATTR InstName V6 SYMATTR Value 3.3 TEXT 1600 648 Left 0 ;Max inductance for 50ma is 4mH. \nMax inductance for 20ma is 30mH.\nMax Capacitance for 17V is 0.05uF 50nf\nMax Capacitance for 12V is ~130nf\nMax Capacitance for 10V is ~220nf TEXT 2048 640 Left 0 ;2 meter cable 16 AWG\n3.2uH/meter wire +pin inductance\n18pF/foot = 108pf for cable\n13.17ohm/km = 0.0263 ohm/wire \n + 20mohm max for connectors pins = 46.3mohm/wire TEXT 2000 824 Left 0 ;This is the connectors and cable TEXT 2448 800 Left 0 ;Simulates the making of the connection on the short \ncommunications pin and the seperation of that pin \nsignaling disconnect. TEXT 3016 600 Left 0 ;Simulates connection of\nmaximum 6.5A load TEXT -64 1048 Left 0 !.tran 0 4m 0 TEXT -376 752 Left 0 ;For 3.3V basic desing, Vref will be 3.3V and 12bit A/D will resolve 0.806mv per setp. TEXT -376 776 Left 0 ;Voltage across resistor = 1ma x 10ohm = 10mv = 12 counts.