Version 4
SHEET 1 1508 788
WIRE -416 -32 -944 -32
WIRE -96 -32 -416 -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 624 -32 352 -32
WIRE 736 -32 624 -32
WIRE 832 -32 736 -32
WIRE 944 -32 832 -32
WIRE 1024 -32 944 -32
WIRE 1216 -32 1120 -32
WIRE -944 -16 -944 -32
WIRE -416 -16 -416 -32
WIRE 624 -16 624 -32
WIRE 832 -16 832 -32
WIRE 944 -16 944 -32
WIRE 1216 -16 1216 -32
WIRE 240 32 240 16
WIRE 1104 48 1104 16
WIRE -944 80 -944 64
WIRE 624 80 624 64
WIRE 624 80 544 80
WIRE 736 80 736 -32
WIRE 832 80 832 48
WIRE 944 80 944 64
WIRE 1216 80 1216 64
WIRE 624 112 624 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 -416 144 -416 64
WIRE -304 144 -416 144
WIRE 1104 144 1104 128
WIRE -416 160 -416 144
WIRE -304 192 -304 144
WIRE -192 192 -304 192
WIRE 544 192 544 80
WIRE 544 192 464 192
WIRE 624 208 624 192
WIRE -416 256 -416 240
WIRE -192 256 -416 256
WIRE 736 256 736 160
WIRE 736 256 464 256
WIRE -416 272 -416 256
WIRE -192 320 -304 320
WIRE 544 320 464 320
WIRE -304 336 -304 320
WIRE 544 352 544 320
WIRE -416 368 -416 352
WIRE -112 416 -112 400
WIRE 208 416 208 400
WIRE 368 416 368 400
WIRE -304 432 -304 416
WIRE 48 432 48 400
WIRE 544 448 544 432
WIRE -112 496 -112 480
WIRE 208 496 208 480
WIRE 368 496 368 480
FLAG -416 368 0
FLAG 48 432 0
FLAG 624 208 0
FLAG -112 496 0
FLAG 208 496 0
FLAG 368 496 0
FLAG -304 432 0
FLAG -944 80 0
FLAG 832 80 0
FLAG 944 80 0
FLAG 1216 80 0
FLAG 1104 144 0
FLAG 544 448 0
FLAG -944 -32 IN
FLAG 944 -32 OUT
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 0.5m
SYMBOL res -432 -32 R0
SYMATTR InstName R2
SYMATTR Value 34K
SYMBOL res -432 256 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 1.74K
SYMBOL res -432 256 R0
SYMATTR InstName R4
SYMATTR Value 2.67K
SYMBOL res 608 -32 R0
SYMATTR InstName R5
SYMATTR Value 25.1K
SYMBOL res 608 208 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 3.57K
SYMBOL res 720 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 -304 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 3.1)
SYMBOL voltage -944 -32 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 100u 10 6 10 6.0000001 14)
SYMBOL cap 816 -16 R0
SYMATTR InstName C4
SYMATTR Value 2000µ
SYMBOL res 928 80 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 1000
SYMBOL nmos 1024 16 R270
WINDOW 0 88 50 VTop 2
WINDOW 3 55 55 VTop 2
SYMATTR InstName Q2
SYMATTR Value Si4864DY
SYMBOL voltage 1104 32 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 0 6.2 0 6.2001 12)
SYMBOL res 224 16 R0
SYMATTR InstName R9
SYMATTR Value 10
SYMBOL res 1200 80 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R10
SYMATTR Value .05
SYMBOL voltage 544 336 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 1.0001 0)
SYMBOL LTC4280 128 256 R0
SYMATTR InstName U1
TEXT 1080 440 Left 2 !.tran 16
TEXT 1072 -104 Bottom 2 ;Simulates short
TEXT 584 392 Left 2 ;Simulates board detection