Version 4 SHEET 1 1244 892 WIRE -80 -176 -224 -176 WIRE 32 -176 -80 -176 WIRE 96 -176 32 -176 WIRE 128 -176 96 -176 WIRE 240 -176 208 -176 WIRE 272 -176 240 -176 WIRE 384 -176 336 -176 WIRE 656 -176 384 -176 WIRE 736 -176 656 -176 WIRE -224 -160 -224 -176 WIRE 656 -160 656 -176 WIRE -80 -144 -80 -176 WIRE 96 -128 96 -176 WIRE 240 -128 240 -176 WIRE 384 -128 384 -176 WIRE 656 -80 656 -96 WIRE -224 -64 -224 -80 WIRE -80 -64 -80 -80 WIRE 32 -48 32 -176 WIRE 48 -48 32 -48 WIRE 448 -48 432 -48 WIRE 544 -48 528 -48 WIRE -112 -16 -128 -16 WIRE -80 -16 -96 -16 WIRE -128 16 -128 -16 WIRE -128 16 -144 16 WIRE -112 16 -112 -16 WIRE -96 16 -96 -16 WIRE -96 16 -112 16 WIRE -80 16 -80 -16 WIRE -64 16 -80 16 WIRE -288 32 -352 32 WIRE 48 32 -208 32 WIRE 544 32 544 -48 WIRE 544 32 432 32 WIRE 560 32 544 32 WIRE 656 32 640 32 WIRE -48 112 -64 112 WIRE 48 112 32 112 WIRE 448 112 432 112 WIRE 736 112 736 -176 WIRE 736 112 512 112 WIRE 0 192 -224 192 WIRE 48 192 0 192 WIRE 544 192 432 192 WIRE 736 192 736 112 WIRE 736 192 608 192 WIRE -224 240 -224 192 WIRE 0 272 0 192 WIRE 48 272 0 272 WIRE 448 272 432 272 WIRE 736 272 736 192 WIRE 736 272 512 272 WIRE -224 352 -224 320 WIRE 48 352 -224 352 WIRE 544 352 432 352 WIRE 736 352 736 272 WIRE 736 352 608 352 WIRE -224 368 -224 352 WIRE -96 432 -112 432 WIRE 48 432 -16 432 WIRE 448 432 432 432 WIRE -224 464 -224 448 WIRE -32 512 -112 512 WIRE 48 512 32 512 WIRE 448 512 432 512 WIRE 528 512 512 512 WIRE 624 512 608 512 WIRE 240 576 240 560 FLAG 656 32 0 FLAG -112 512 0 FLAG 240 576 0 FLAG -64 112 0 FLAG 624 512 0 FLAG -224 -64 0 FLAG -112 432 0 FLAG 656 -80 0 FLAG -224 464 0 FLAG 448 432 0 FLAG -352 32 0 FLAG -80 -64 0 FLAG 656 -176 VOUT SYMBOL ind 112 -160 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 10µ SYMBOL schottky 272 -160 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value SS24 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 48 96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 53.6K SYMBOL res 432 -32 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 976K SYMBOL res 544 48 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 31.6K SYMBOL LED 512 96 R90 WINDOW 0 0 6 VLeft 2 WINDOW 3 35 8 VLeft 2 WINDOW 123 59 7 VLeft 2 SYMATTR InstName D2 SYMATTR Value LXHL-BW02 SYMATTR Value2 N=10 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 608 176 R90 WINDOW 0 0 6 VLeft 2 WINDOW 3 35 8 VLeft 2 WINDOW 123 59 7 VLeft 2 SYMATTR InstName D3 SYMATTR Value LXHL-BW02 SYMATTR Value2 N=10 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 512 256 R90 WINDOW 0 0 6 VLeft 2 WINDOW 3 35 8 VLeft 2 WINDOW 123 59 7 VLeft 2 SYMATTR InstName D4 SYMATTR Value LXHL-BW02 SYMATTR Value2 N=10 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 608 336 R90 WINDOW 0 0 6 VLeft 2 WINDOW 3 35 8 VLeft 2 WINDOW 123 59 7 VLeft 2 SYMATTR InstName D5 SYMATTR Value LXHL-BW02 SYMATTR Value2 N=10 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 32 496 R90 WINDOW 3 32 32 VTop 2 WINDOW 0 0 32 VBottom 2 SYMATTR Value 10n SYMATTR InstName C1 SYMBOL res 512 528 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 10K SYMBOL voltage -224 -176 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL res 0 416 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 13.3K SYMBOL cap 640 -160 R0 SYMATTR InstName C2 SYMATTR Value 10µ SYMATTR SpiceLine Rser=3m SYMBOL cap 448 496 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 2.2n SYMBOL res -240 224 R0 SYMATTR InstName R8 SYMATTR Value 52.3K SYMBOL res -240 352 R0 SYMATTR InstName R9 SYMATTR Value 80.6K SYMBOL PowerProducts\\LT3599 240 240 R0 SYMATTR InstName U1 SYMBOL voltage -192 32 R90 WINDOW 0 -32 56 VBottom 2 WINDOW 3 32 56 VTop 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value PULSE(3.3 0 1m 10n 10n .5m 1m) SYMBOL cap -96 -144 R0 SYMATTR InstName C5 SYMATTR Value 3.3µ TEXT 640 560 Left 2 !.tran 4m startup TEXT 256 -232 Bottom 2 ;LT3599 - 4-Channel 120mA LED Driver with 1.5% Current Matching \nInput: 12V Output: 4-Strings of 10 LEDs, 100mA per Channel TEXT -384 600 Left 2 ;Note:\n If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n Copyright © 2011 Linear Technology Inc. All rights reserved. TEXT 568 -32 Left 2 ;OVP=40V TEXT -48 168 Left 2 ;(1MHz)