Version 4 SHEET 1 1148 804 WIRE 128 -48 -16 -48 WIRE 208 -48 128 -48 WIRE 240 -48 208 -48 WIRE 336 -48 304 -48 WIRE 496 -48 336 -48 WIRE -16 -32 -16 -48 WIRE 128 -32 128 -48 WIRE 336 -32 336 -48 WIRE 496 0 496 -48 WIRE -16 64 -16 48 WIRE 208 64 208 -48 WIRE 336 64 336 32 WIRE -64 128 -160 128 WIRE 32 128 -64 128 WIRE 112 128 32 128 WIRE 496 128 496 80 WIRE 496 128 432 128 WIRE -160 144 -160 128 WIRE -64 144 -64 128 WIRE 32 208 32 128 WIRE 112 208 32 208 WIRE 448 208 432 208 WIRE 544 208 528 208 WIRE -160 240 -160 224 WIRE -64 240 -64 208 WIRE 112 288 32 288 WIRE 592 288 432 288 WIRE 736 288 672 288 WIRE 272 368 272 352 FLAG 272 368 0 FLAG -16 64 0 FLAG -16 -48 IN FLAG -160 240 0 FLAG 544 208 0 FLAG 736 288 0 FLAG 128 32 0 FLAG -64 240 0 SYMBOL LED 320 32 M180 WINDOW 0 23 62 Left 2 WINDOW 3 25 3 Left 2 WINDOW 123 84 37 Left 2 SYMATTR InstName D1 SYMATTR Value QTLP690C SYMATTR Value2 N=10 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 480 -16 R0 SYMATTR InstName L1 SYMATTR Value 100µ SYMATTR SpiceLine Rser=.1 SYMBOL cap 240 -32 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C1 SYMATTR Value .47µ SYMATTR SpiceLine Rser=.01 SYMBOL voltage -16 -48 R0 SYMATTR InstName V1 SYMATTR Value 30 SYMBOL PowerProducts\\LT3595 272 208 R0 SYMATTR InstName U2 SYMBOL voltage -160 128 R0 SYMATTR InstName V2 SYMATTR Value 3.3 SYMBOL res 544 192 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 30.1K SYMBOL res 16 304 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R2 SYMATTR Value 100K SYMBOL voltage 576 288 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 -32 56 VBottom 2 WINDOW 123 -32 56 VBottom 2 WINDOW 39 -32 56 VBottom 2 SYMATTR InstName V3 SYMATTR Value PULSE(0 3.3 0 1u 1u 50u 100u) SYMBOL cap 112 -32 R0 WINDOW 3 33 52 Left 2 SYMATTR Value 10µ SYMATTR InstName Cin SYMBOL cap -80 144 R0 SYMATTR InstName Ccc SYMATTR Value 10µ TEXT 528 392 Left 2 !.tran 1m startup TEXT 256 -88 Bottom 2 ;LT3595 - 16 Channel High Voltage Step Down LED Driver with PWM\nSingle Channel Circuit Demo Input: 32V Output: 10 LEDs @ 50mA TEXT -312 416 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 © 2008 Linear Technology Inc. All rights reserved.