Version 4
SHEET 1 2204 1236
WIRE -256 -32 -544 -32
WIRE 80 -32 -256 -32
WIRE 288 -32 80 -32
WIRE 352 -32 288 -32
WIRE 480 -32 432 -32
WIRE 544 -32 480 -32
WIRE 656 -32 544 -32
WIRE 816 -32 656 -32
WIRE 976 -32 912 -32
WIRE 1104 -32 976 -32
WIRE -544 -16 -544 -32
WIRE 288 -16 288 -32
WIRE 544 -16 544 -32
WIRE 976 -16 976 -32
WIRE 1104 -16 1104 -32
WIRE 656 0 656 -32
WIRE -256 16 -256 -32
WIRE -544 80 -544 64
WIRE 288 80 288 64
WIRE 976 80 976 48
WIRE 1104 80 1104 64
WIRE 544 96 544 64
WIRE 656 96 656 64
WIRE 656 96 544 96
WIRE 832 96 832 16
WIRE 832 96 656 96
WIRE 80 128 80 -32
WIRE 128 128 80 128
WIRE 480 128 480 -32
WIRE 480 128 448 128
WIRE 656 144 656 96
WIRE -96 240 -112 240
WIRE 128 240 -16 240
WIRE 512 240 448 240
WIRE 512 256 512 240
WIRE -32 352 -96 352
WIRE 80 352 48 352
WIRE 128 352 80 352
WIRE 512 352 512 336
WIRE 512 352 448 352
WIRE -96 368 -96 352
WIRE 512 368 512 352
WIRE -96 464 -96 448
WIRE 80 464 80 352
WIRE 128 464 80 464
WIRE 464 464 448 464
WIRE 512 464 512 448
WIRE 288 528 288 512
WIRE 656 528 656 224
WIRE -256 560 -256 96
WIRE -96 560 -256 560
WIRE 464 560 464 464
WIRE 464 560 -96 560
WIRE -256 576 -256 560
WIRE -96 576 -96 560
WIRE 80 608 80 464
WIRE 608 608 80 608
WIRE 656 656 656 624
WIRE -256 672 -256 656
WIRE -96 672 -96 640
FLAG 288 528 0
FLAG -544 80 0
FLAG -112 240 0
FLAG 1104 80 0
FLAG -96 464 0
FLAG 976 80 0
FLAG 512 464 0
FLAG 656 656 0
FLAG -256 672 0
FLAG -96 672 0
SYMBOL voltage -544 -32 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 40 1.2m 10)
SYMBOL voltage 0 240 R90
WINDOW 123 74 56 VTop 2
WINDOW 39 53 56 VTop 2
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V2
SYMATTR Value PULSE(5 0 1n 5n 5n 4u 1ms 2)
SYMBOL res 336 -16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value .1
SYMBOL pmos 912 16 M270
WINDOW 0 54 44 VTop 2
WINDOW 3 -12 74 VLeft 2
SYMATTR InstName Q1
SYMATTR Value IRF9640
SYMBOL current 1104 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value PWL(20u 0 500u 1 800u 1 900u .2)
SYMBOL res 496 240 R0
SYMATTR InstName R2
SYMATTR Value 9.53K
SYMBOL res 496 352 R0
SYMATTR InstName R3
SYMATTR Value 475
SYMBOL voltage -96 352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL res -48 368 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL diode 960 48 M180
WINDOW 0 29 59 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N914
SYMBOL zener 640 64 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C6V2L
SYMBOL res 528 -32 R0
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL res 640 128 R0
SYMATTR InstName R7
SYMATTR Value 100K
SYMBOL res 272 -32 R0
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL res -272 0 R0
SYMATTR InstName R9
SYMATTR Value 1Meg
SYMBOL res -272 560 R0
SYMATTR InstName R10
SYMATTR Value 13.3K
SYMBOL cap -112 576 R0
SYMATTR InstName C1
SYMATTR Value .1µ
SYMBOL LT6109-1 288 304 R0
SYMATTR InstName U1
SYMBOL nmos 608 528 R0
SYMATTR InstName Q2
SYMATTR Value 2N7002
TEXT 800 464 Left 2 !.tran 1.4m
TEXT 352 720 Top 2 ;NOTE:  The reset signal must be applied low on startup.