Version 4
SHEET 1 932 680
WIRE -352 80 -464 80
WIRE 176 80 -352 80
WIRE 544 80 176 80
WIRE -464 96 -464 80
WIRE -352 112 -352 80
WIRE 544 112 544 80
WIRE 176 176 176 80
WIRE -464 192 -464 176
WIRE -352 224 -352 192
WIRE 48 224 -352 224
WIRE 544 224 544 192
WIRE 544 224 304 224
WIRE -288 304 -304 304
WIRE 48 304 -288 304
WIRE 400 304 304 304
WIRE 496 304 400 304
WIRE -288 336 -288 304
WIRE 400 336 400 304
WIRE 48 384 -112 384
WIRE 336 384 304 384
WIRE -352 416 -352 320
WIRE -288 416 -288 400
WIRE -288 416 -352 416
WIRE -112 416 -112 384
WIRE 400 416 400 400
WIRE 544 416 544 320
WIRE 544 416 400 416
WIRE -352 432 -352 416
WIRE 544 432 544 416
WIRE 176 448 176 432
WIRE 336 496 336 384
WIRE -112 512 -112 496
WIRE -352 528 -352 512
WIRE 544 528 544 512
WIRE 336 592 336 576
FLAG -464 192 0
FLAG -112 512 0
FLAG 544 528 0
FLAG 176 448 0
FLAG -352 528 0
FLAG 336 592 0
SYMBOL voltage -464 80 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -112 400 R0
SYMATTR Value PULSE(0 5 0 100n 100n 2.5m 5m)
SYMATTR InstName V2
SYMBOL res 528 96 R0
SYMATTR InstName R1
SYMATTR Value .036
SYMBOL nmos 496 224 R0
WINDOW 0 59 30 Left 2
WINDOW 3 63 60 Left 2
SYMATTR InstName Q1
SYMATTR Value Si9936DY
SYMBOL res 528 416 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL PowerProducts\\LTC1255 176 304 R0
SYMATTR InstName U1
SYMBOL res -368 96 R0
SYMATTR InstName R3
SYMATTR Value .036
SYMBOL nmos -304 224 M0
WINDOW 0 0 14 Right 2
WINDOW 3 0 54 Right 2
SYMATTR InstName Q2
SYMATTR Value Si9936DY
SYMBOL res -368 416 R0
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL zener -304 400 M180
WINDOW 0 25 70 Left 2
WINDOW 3 27 0 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C12L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL zener 384 400 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C12L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage 336 480 R0
SYMATTR Value PULSE(0 5 0 100n 100n 2.5m 5m)
SYMATTR InstName V3
TEXT 568 640 Left 2 !.tran 20m startup