Version 4 SHEET 1 1724 788 WIRE -384 -32 -800 -32 WIRE -96 -32 -384 -32 WIRE 16 -32 -96 -32 WIRE 32 -32 16 -32 WIRE 128 -32 112 -32 WIRE 160 -32 128 -32 WIRE 352 -32 256 -32 WIRE 576 -32 352 -32 WIRE 688 -32 576 -32 WIRE 784 -32 688 -32 WIRE 896 -32 784 -32 WIRE 976 -32 896 -32 WIRE 1168 -32 1072 -32 WIRE -800 -16 -800 -32 WIRE 576 -16 576 -32 WIRE 784 -16 784 -32 WIRE 896 -16 896 -32 WIRE 1168 -16 1168 -32 WIRE 240 32 240 16 WIRE -384 48 -384 -32 WIRE 1056 64 1056 16 WIRE -800 80 -800 64 WIRE 576 80 576 64 WIRE 576 80 496 80 WIRE 688 80 688 -32 WIRE 784 80 784 48 WIRE 896 80 896 64 WIRE 1168 80 1168 64 WIRE 576 112 576 80 WIRE -96 128 -96 -32 WIRE 16 128 16 -32 WIRE 128 128 128 -32 WIRE 240 128 240 112 WIRE 352 128 352 -32 WIRE -384 144 -384 128 WIRE -272 144 -384 144 WIRE -384 160 -384 144 WIRE 1056 160 1056 144 WIRE -272 192 -272 144 WIRE -192 192 -272 192 WIRE 496 192 496 80 WIRE 496 192 464 192 WIRE 576 208 576 192 WIRE -384 256 -384 240 WIRE -192 256 -384 256 WIRE 688 256 688 160 WIRE 688 256 464 256 WIRE -384 272 -384 256 WIRE -192 320 -256 320 WIRE 544 320 464 320 WIRE -256 336 -256 320 WIRE 544 336 544 320 WIRE -384 368 -384 352 WIRE -112 416 -112 400 WIRE 208 416 208 400 WIRE 368 416 368 400 WIRE -256 432 -256 416 WIRE 48 432 48 400 WIRE 544 432 544 416 WIRE -112 496 -112 480 WIRE 208 496 208 480 WIRE 368 496 368 480 FLAG -384 368 0 FLAG 48 432 0 FLAG 576 208 0 FLAG -112 496 0 FLAG 208 496 0 FLAG 368 496 0 FLAG -256 432 0 FLAG -800 80 0 FLAG 784 80 0 FLAG 896 80 0 FLAG 1168 80 0 FLAG 1056 160 0 FLAG 544 432 0 SYMBOL nmos 160 16 R270 WINDOW 0 82 51 VTop 2 WINDOW 3 51 49 VTop 2 SYMATTR InstName Q1 SYMATTR Value Si4864DY SYMBOL res 16 -16 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 5m SYMBOL res -400 32 R0 SYMATTR InstName R2 SYMATTR Value 34K SYMBOL res -400 256 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R3 SYMATTR Value 1.74K SYMBOL res -400 256 R0 SYMATTR InstName R4 SYMATTR Value 2.67K SYMBOL res 560 -32 R0 SYMATTR InstName R5 SYMATTR Value 25.1K SYMBOL res 560 208 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R6 SYMATTR Value 3.57K SYMBOL res 672 64 R0 SYMATTR InstName R7 SYMATTR Value 24K SYMBOL cap -128 416 R0 SYMATTR InstName C1 SYMATTR Value .068µ SYMBOL cap 192 416 R0 SYMATTR InstName C2 SYMATTR Value .068µ SYMBOL cap 352 416 R0 SYMATTR InstName C3 SYMATTR Value 4µ SYMBOL voltage -256 320 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 3.1 SYMBOL voltage -800 -32 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PWL(0 0 10u 0 100u 12 6 12) SYMBOL cap 768 -16 R0 SYMATTR InstName C4 SYMATTR Value 2000µ SYMBOL res 880 80 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R8 SYMATTR Value 10 SYMBOL nmos 976 16 R270 WINDOW 0 88 50 VTop 2 WINDOW 3 55 55 VTop 2 SYMATTR InstName Q2 SYMATTR Value Si4864DY SYMBOL res 224 16 R0 SYMATTR InstName R9 SYMATTR Value 10 SYMBOL res 1152 80 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R10 SYMATTR Value .05 SYMBOL voltage 544 320 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V4 SYMATTR Value PWL(0 3.1 1 3.1 +100u 0) SYMBOL LTC4215-2 128 256 R0 SYMATTR InstName U1 SYMBOL voltage 1056 48 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value PWL(0 0 4 0 +100u 12 +200m 12 +100n 0) TEXT 1056 400 Left 2 !.tran 12 TEXT 1000 216 Left 2 ;Simulate shorts TEXT 592 376 Left 2 ;simulate board detection