Version 4
SHEET 1 2204 1092
WIRE -368 -352 -880 -352
WIRE -80 -352 -368 -352
WIRE -64 -352 -80 -352
WIRE 32 -352 16 -352
WIRE 176 -352 32 -352
WIRE 368 -352 272 -352
WIRE 608 -352 368 -352
WIRE 720 -352 608 -352
WIRE 816 -352 720 -352
WIRE 928 -352 816 -352
WIRE -880 -336 -880 -352
WIRE 816 -336 816 -352
WIRE 928 -336 928 -352
WIRE 256 -272 256 -304
WIRE -880 -240 -880 -256
WIRE 816 -240 816 -272
WIRE 928 -240 928 -256
WIRE -368 -208 -368 -352
WIRE 608 -208 608 -352
WIRE 144 -176 112 -176
WIRE 256 -176 256 -192
WIRE 256 -176 224 -176
WIRE 112 -160 112 -176
WIRE 720 -160 720 -352
WIRE 608 -112 608 -128
WIRE 608 -112 528 -112
WIRE 608 -96 608 -112
WIRE -368 -80 -368 -128
WIRE -368 -80 -464 -80
WIRE -256 -80 -368 -80
WIRE 112 -80 112 -96
WIRE -368 -48 -368 -80
WIRE -80 -48 -80 -352
WIRE 32 -48 32 -352
WIRE 256 -48 256 -176
WIRE 368 -48 368 -352
WIRE -464 -32 -464 -80
WIRE -256 0 -256 -80
WIRE -176 0 -256 0
WIRE 528 0 528 -112
WIRE 528 0 480 0
WIRE 608 0 608 -16
WIRE -464 48 -464 32
WIRE -368 64 -368 32
WIRE -176 64 -368 64
WIRE 720 64 720 -80
WIRE 720 64 480 64
WIRE -368 96 -368 64
WIRE -176 128 -256 128
WIRE 560 128 480 128
WIRE -368 192 -368 176
WIRE 560 208 560 128
WIRE -256 224 -256 128
WIRE 160 240 160 224
WIRE 320 240 320 224
WIRE 0 256 0 224
WIRE 560 304 560 288
WIRE -256 320 -256 304
WIRE 160 320 160 304
WIRE 320 320 320 304
FLAG -368 192 0
FLAG 0 256 0
FLAG 608 0 0
FLAG 160 320 0
FLAG 320 320 0
FLAG -256 320 0
FLAG -880 -240 0
FLAG 816 -240 0
FLAG 928 -240 0
FLAG 560 304 0
FLAG 112 -80 0
FLAG -464 48 0
FLAG 928 -352 OUT
SYMBOL res -80 -336 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 5.7m
SYMBOL res -384 -224 R0
SYMATTR InstName R2
SYMATTR Value 49.9K
SYMBOL res -384 48 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 1.74K
SYMBOL res -384 80 R0
SYMATTR InstName R4
SYMATTR Value 2.67K
SYMBOL res 592 -224 R0
SYMATTR InstName R5
SYMATTR Value 43.5K
SYMBOL res 592 0 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 3.57K
SYMBOL res 704 -176 R0
SYMATTR InstName R7
SYMATTR Value 24K
SYMBOL cap 144 240 R0
SYMATTR InstName C1
SYMATTR Value .1µ
SYMBOL cap 304 240 R0
SYMATTR InstName C2
SYMATTR Value 68n
SYMBOL cap 800 -336 R0
SYMATTR InstName C3
SYMATTR Value 220µ
SYMBOL res 912 -240 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value {Rload}
SYMBOL res 240 -288 R0
SYMATTR InstName R9
SYMATTR Value 10
SYMBOL voltage 560 192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 3.1 1 3.1 1.0001 0 1.2 0 1.20001 0)
SYMBOL res 128 -160 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R10
SYMATTR Value 100K
SYMBOL cap 96 -160 R0
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL cap -480 -32 R0
SYMATTR InstName C5
SYMATTR Value 0.1µ
SYMBOL PowerProducts\\LTC4260 144 80 R0
SYMATTR InstName U1
SYMATTR SpiceLine uvautoretry=1 ovautoretry=1 ocautoretry=1
SYMBOL voltage -256 208 R0
WINDOW 123 24 146 Left 2
WINDOW 39 24 125 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 1u 3.1 1 3.1 1.0001 3.1)
SYMBOL voltage -880 -352 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PWL(0 0 10u 0 100u 60 1.8 60 +0.1m 60)
SYMATTR InstName V3
SYMBOL nmos 176 -304 R270
WINDOW 0 55 46 VTop 2
WINDOW 3 -7 73 VLeft 2
SYMATTR InstName Q1
SYMATTR Value PSMN4R8100BSE
TEXT 840 120 Left 2 !.tran 2.5\n.options SOAaccounting=1 ; turns on SOA accouting for MOSFETs that include thermal data
TEXT 608 248 Left 2 ;simulate board detection
TEXT 736 -200 Left 2 !.param Rload=10\n.step param Rload list 1 10 50 100