Version 4 SHEET 1 2688 1092 WIRE -176 -320 -288 -320 WIRE -64 -320 -176 -320 WIRE 112 -320 -64 -320 WIRE 208 -320 112 -320 WIRE 304 -320 208 -320 WIRE 320 -320 304 -320 WIRE 432 -320 400 -320 WIRE 544 -320 512 -320 WIRE 624 -320 544 -320 WIRE 736 -320 688 -320 WIRE 784 -320 736 -320 WIRE 880 -320 784 -320 WIRE -288 -304 -288 -320 WIRE 784 -304 784 -320 WIRE 304 -272 304 -320 WIRE -64 -224 -64 -320 WIRE 784 -224 784 -240 WIRE -288 -208 -288 -224 WIRE 544 -192 544 -320 WIRE 112 -176 112 -320 WIRE 208 -176 208 -320 WIRE 304 -176 304 -192 WIRE 400 -176 400 -320 WIRE -64 -112 -64 -144 WIRE 48 -112 -64 -112 WIRE 496 -112 464 -112 WIRE -64 -96 -64 -112 WIRE -176 -32 -176 -320 WIRE 48 -16 16 -16 WIRE 544 -16 544 -96 WIRE 544 -16 464 -16 WIRE -64 0 -64 -16 WIRE 544 0 544 -16 WIRE 736 48 736 -320 WIRE 16 80 16 -16 WIRE 16 80 0 80 WIRE 48 80 16 80 WIRE 480 80 464 80 WIRE 544 96 544 80 WIRE -176 112 -176 48 WIRE 16 176 16 80 WIRE 48 176 16 176 WIRE 736 176 736 128 WIRE 736 176 464 176 WIRE 752 176 736 176 WIRE 848 176 832 176 WIRE -176 208 -176 192 WIRE -288 272 -368 272 WIRE 48 272 -288 272 WIRE 880 272 880 -320 WIRE 880 272 464 272 WIRE -368 288 -368 272 WIRE -288 288 -288 272 WIRE 48 368 -192 368 WIRE 880 368 880 352 WIRE 880 368 464 368 WIRE -368 384 -368 352 WIRE -288 384 -288 368 WIRE -192 384 -192 368 WIRE 880 448 880 368 WIRE -192 464 -192 448 WIRE 48 464 -112 464 WIRE 48 560 0 560 WIRE 496 560 464 560 WIRE 528 560 496 560 WIRE 624 560 592 560 WIRE 112 640 112 624 WIRE 208 640 208 624 WIRE 304 640 304 624 WIRE 416 640 416 624 WIRE -112 720 -112 464 WIRE 0 720 0 560 WIRE 112 720 112 704 WIRE 416 720 416 704 WIRE 208 736 208 720 WIRE 112 816 112 800 WIRE -112 848 -112 800 WIRE 0 848 0 800 WIRE 0 848 -112 848 WIRE 496 848 496 560 WIRE 496 848 0 848 FLAG -288 -208 0 FLAG -64 0 0 FLAG -192 464 0 FLAG 112 816 0 FLAG 208 736 0 FLAG 304 640 0 FLAG 416 720 0 FLAG 624 560 0 FLAG 480 80 0 FLAG 544 96 0 FLAG 784 -224 0 FLAG -288 -320 IN FLAG -176 208 0 FLAG -368 384 0 FLAG 848 176 0 FLAG -288 384 0 FLAG 880 528 0 SYMBOL PowerProducts\\LT3796 256 224 R0 SYMATTR InstName U1 SYMBOL voltage -288 -320 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL res 304 -304 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 50m SYMBOL res -80 -240 R0 SYMATTR InstName R2 SYMATTR Value 499K SYMBOL res -80 -112 R0 SYMATTR InstName R3 SYMATTR Value 97.6K SYMBOL cap -208 384 R0 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL cap 96 640 R0 WINDOW 39 24 77 Left 2 SYMATTR InstName C2 SYMATTR Value 10n SYMBOL res 192 624 R0 SYMATTR InstName R4 SYMATTR Value 31.6K SYMBOL cap 400 640 R0 SYMATTR InstName C3 SYMATTR Value .05µ SYMBOL cap 528 576 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C4 SYMATTR Value 4.7µ SYMBOL nmos 496 -192 R0 WINDOW 0 57 12 Left 2 WINDOW 3 53 65 Left 2 SYMATTR InstName Q1 SYMATTR Value BSC160N10NS3 SYMBOL res 528 -16 R0 SYMATTR InstName R5 SYMATTR Value 15m SYMBOL res 864 256 R0 SYMATTR InstName Rshunt SYMATTR Value 150m SYMBOL res 720 32 R0 SYMATTR InstName R7 SYMATTR Value 1Meg SYMBOL res 736 192 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R8 SYMATTR Value 34.5k SYMBOL cap 768 -304 R0 WINDOW 123 28 57 Left 2 WINDOW 3 37 31 Left 2 SYMATTR Value2 x4 SYMATTR Value 2.2µ SYMATTR InstName C5 SYMATTR SpiceLine Rser=10m SYMBOL ind 416 -304 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 22µ SYMATTR SpiceLine Rser=20m Rpar=10K SYMBOL schottky 624 -304 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value PDS5100 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 96 704 R0 SYMATTR InstName R9 SYMATTR Value 10K SYMBOL res -16 704 R0 SYMATTR InstName R10 SYMATTR Value 100K SYMBOL res -128 704 R0 SYMATTR InstName R11 SYMATTR Value 100K SYMBOL res -192 -48 R0 SYMATTR InstName R12 SYMATTR Value 1Meg SYMBOL res -192 96 R0 SYMATTR InstName R13 SYMATTR Value 150k SYMBOL cap -384 288 R0 WINDOW 39 24 77 Left 2 SYMATTR InstName C6 SYMATTR Value .01µ SYMBOL res 288 -288 R0 SYMATTR InstName R14 SYMATTR Value 2K SYMBOL res -304 272 R0 SYMATTR InstName R15 SYMATTR Value 82.5K SYMBOL res 864 432 R0 SYMATTR InstName Rload SYMATTR Value 4 TEXT 712 808 Left 2 !.tran 10m startup TEXT 40 224 Right 2 ;Input Current\nReporting (Optional) TEXT 32 320 Right 2 ;LED Current\nReporting