Version 4
SHEET 1 2276 680
WIRE 880 -144 -32 -144
WIRE -352 -80 -608 -80
WIRE -32 -80 -32 -144
WIRE -32 -80 -352 -80
WIRE 128 -80 -32 -80
WIRE 208 -80 128 -80
WIRE 352 -80 288 -80
WIRE 432 -80 352 -80
WIRE 720 -80 528 -80
WIRE 928 -80 720 -80
WIRE 1056 -80 928 -80
WIRE 1184 -80 1056 -80
WIRE 1328 -80 1184 -80
WIRE -608 -64 -608 -80
WIRE 1056 -64 1056 -80
WIRE 1184 -64 1184 -80
WIRE 1328 -64 1328 -80
WIRE -352 -16 -352 -80
WIRE 512 -16 512 -32
WIRE 1440 0 1376 0
WIRE 1440 16 1440 0
WIRE -608 32 -608 16
WIRE 1056 32 1056 0
WIRE 1184 32 1184 16
WIRE 1328 32 1328 16
WIRE 928 48 928 -80
WIRE -32 80 -32 -80
WIRE 128 80 128 -80
WIRE 352 80 352 -80
WIRE 512 80 512 64
WIRE -352 96 -352 64
WIRE -240 96 -352 96
WIRE -352 112 -352 96
WIRE 1440 112 1440 96
WIRE -240 144 -240 96
WIRE -192 144 -240 144
WIRE 720 144 720 -80
WIRE 720 144 672 144
WIRE -352 208 -352 192
WIRE -192 208 -352 208
WIRE 928 208 928 128
WIRE 928 208 672 208
WIRE -352 224 -352 208
WIRE -192 272 -240 272
WIRE 784 272 672 272
WIRE 880 272 880 -144
WIRE 880 272 864 272
WIRE -352 320 -352 304
WIRE -240 336 -240 272
WIRE -192 336 -240 336
WIRE 768 336 672 336
WIRE -240 368 -240 336
WIRE 768 400 768 336
WIRE 784 400 768 400
WIRE 880 400 880 272
WIRE 880 400 864 400
WIRE -240 448 -240 432
WIRE 576 464 576 432
WIRE -96 480 -96 432
WIRE 576 560 576 528
FLAG 1056 32 0
FLAG 1184 32 0
FLAG -96 480 0
FLAG 576 560 0
FLAG -240 448 0
FLAG -608 32 0
FLAG -608 -80 IN
FLAG 1328 32 0
FLAG 1440 112 0
FLAG 1376 -48 0
FLAG 1184 -80 OUT
FLAG -352 320 0
SYMBOL nmos 432 -32 R270
WINDOW 0 62 43 VTop 2
WINDOW 3 -11 70 VLeft 2
SYMATTR InstName M1
SYMATTR Value Si7868DP
SYMBOL res 496 -32 R0
SYMATTR InstName R1
SYMATTR Value 10
SYMBOL cap 1040 -64 R0
SYMATTR InstName C1
SYMATTR Value 100µ
SYMBOL res 1168 -80 R0
SYMATTR InstName R3
SYMATTR Value 1.2
SYMBOL res 304 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value .25m
SYMBOL cap 560 464 R0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL cap -256 368 R0
SYMATTR InstName C3
SYMATTR Value 1µ
SYMBOL voltage -608 -80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 1m 12)
SYMBOL sw 1328 -80 M0
WINDOW 0 -15 7 Right 2
WINDOW 3 -24 97 Right 2
SYMATTR InstName S1
SYMATTR Value SLD
SYMBOL voltage 1440 0 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 1 500m 10n 10n 10m 100)
SYMBOL res 912 32 R0
SYMATTR InstName R8
SYMATTR Value 30.1K
SYMBOL res 880 256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res 880 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL res -368 -32 R0
SYMATTR InstName R9
SYMATTR Value 34.8K
SYMBOL res -368 96 R0
SYMATTR InstName R10
SYMATTR Value 1.18K
SYMBOL res -368 208 R0
SYMATTR InstName R11
SYMATTR Value 3.4K
SYMBOL LTC4281 240 240 R0
SYMATTR InstName U1
SYMATTR Value2 OVRTRY=1 UVRTRY=1 OCRTRY=1
TEXT 928 496 Left 2 !.tran 2\n.model SLD SW(Ron=50m Roff=5 Vt=.5 Vh=-.3)
TEXT 256 456 Top 2 ;Enter FETBADTIMOUT in seconds on symbol