1 C4 0.47uF 50V C5 0.47uF 50V C6 0.47uF 50V C7 0.47uF 50V C8 0.47uF 50V C9 0.47uF 50V C10 0.47uF 50V C11 0.47uF 50V C12 0.47uF 50V C13 0.47uF 50V C14 0.47uF 50V C15 0.47uF 50V C16 0.47uF 50V D1 LED D2 LED D3 LED D4 LED D5 LED D6 LED D7 LED D8 LED D9 LED D10 LED D11 LED D12 LED D13 LED D14 LED D15 LED D16 LED D17 LED D18 LED D19 LED D20 LED D21 LED D22 LED D23 LED D24 LED D25 LED D26 LED D27 LED D28 LED D29 LED D30 LED D31 LED D32 LED D33 LED D34 LED D35 LED D36 LED D37 LED D38 LED D39 LED D40 LED D41 LED D42 LED D43 LED D44 LED D45 LED D46 LED D47 LED D48 LED L1 100uH L2 100uH L3 100uH L4 100uH L5 100uH L6 100uH L7 100uH L8 100uH L9 100uH L10 100uH L11 100uH L12 100uH L13 100uH L14 100uH L15 100uH L16 100uH C18 10uF 6.3V SW16 1 L16 2 3 L15 7 4 SW15 SW14 L14 6 9 L13 8 SW13 10 L12 11 SW12 12 L11 13 SW11 16 L10 15 SW10 18 L9 17 SW9 29 L8 30 SW8 31 L7 32 SW7 35 L6 34 SW6 37 L5 36 SW5 38 L4 39 SW4 40 L3 41 SW3 43 44 L2 R3 49.9k 30mA PWM16 56 PWM15 55 PWM14 54 53 PWM13 PWM12 22 PWM11 21 PWM10 20 PWM9 19 PWM8 28 PWM7 27 PWM6 PWM1 GND 47 E5 PWM5 VCC 26 52 57 R2 100k 51 R1 51k PWM4 OPENLED VCC 25 SHDN 23 PWM3 24 B EXPOSED PAD, SOLDER SIDE 50 NC NC 49 42 33 PWM2 VIN VIN 48 E4 14 5 SW2 SW1 E3 VCC 5V 8 A B SHDN 7 C3 0.47uF 50V E2 OPENLED 6 C2 0.47uF 50V RSET GND 5 C1 0.47uF 50V 45 A 4 45V C17 10uF 50V 46 E1 15V-45V 3 L1 VIN 2 U1 LT3595EUHH C C J1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 PWM8 PWM9 PWM10 PWM11 PWM12 PWM13 PWM14 PWM15 PWM16 TSW-120-09-S-D-RA D 1 2 PWM1 PWM9 PWM2 PWM10 PWM3 PWM11 PWM4 PWM12 PWM5 PWM13 PWM6 PWM14 PWM7 PWM15 PWM8 PWM16 3 LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY Customer Notice 4 5 Linear Technology Has Made A Best Effort To Design A Circuit That Meets Customer-Supplied Specifications; However, It Remains The Customer's Responsibility To Verify Proper And Reliable Operation In The Actual Application. Component Substitution And Printed Circuit Board Layout May Significantly Affect Circuit Performance Or Reliability. Contact Linear Technology Applications Engineering For Assistance. This Circuit Is Proprietary To Linear Technology And Supplied For Use With Linear Technology Parts. 6 D LINEAR TECHNOLOGY CORPORATION 1630 McCARTHY BLVD. MILPITAS, CA. 95035 PHONE (408) 954-8400 FAX (408) 434-0507 Title 16-Channel Buck Mode LED Driver Size Document Number Date: Monday, December 04, 2006 DC1199A 7 Rev LT3595EUHH Sheet 1 of 8 A 2 A uVIN 6-12V D E 1 2 3 C22 0.1uF 50V V+ OUT 5 GND SET DIV R12 4.99K 1% PGD/RB7 PGC/RB6 RB5 RB4 RB3 RB2 RB1 INT/RB0 17 16 15 14 11 10 9 8 RX/RC7 TX/RC6 MOSI/RC5 MISO/RC4 SCK/RC3 RC2 RC1 RC0 1 44 43 42 37 36 35 32 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 5 4 3 2 41 40 39 38 30 OSCIN 31 OSCOUT 4 R13 0 18 MCLR 27 RE2/CS 26 RE1/WR 25 RE0/RD 6 VSS 3 24 23 22 21 20 19 E 6 4 2 F0 1 2 R6A 4.99K R6B 4.99K S1 PATTERN R6C 4.99K R6D 4.99K VCC C21 0.1uF 50V 2 3 4 5 6 7 8 9 11 1 1D 2D 3D 4D 5D 6D 7D 8D CLK OC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q ENABLED DISABLED 0 = OFF - all 16 channels 1 = Linear gradient 11 1 2 = Logarithmic gradient VCC 2 3 4 5 6 7 8 9 1D 2D 3D 4D 5D 6D 7D 8D CLK OC 10 3 = Logarithmic scroll 4 = 1000:1 100Hz PWM - all 16 channels 5 = 100:1 1kHz PWM - all 16 channels PWM5 PWM6 PWM7 PWM8 R11A 100 R11B 100 R11C 100 R11D 100 R12A 100 R12B 100 R12C 100 R12D 100 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 19 18 17 16 15 14 13 12 2 PWM9 PWM10 PWM11 PWM12 PWM13 PWM14 PWM15 PWM16 U5 MM74HC574MTC LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY 6 = Fade from 0 to 1 in 1000:1 increments 100Hz PWM E = ON - all 16 channels F = FLOAT - drive PWM pins by external source on J1 B C 1 LINEAR TECHNOLOGY CORPORATION Customer Notice 7-D = No program A PWM4 3 20 C23 0.1uF 50V PATTERN SELECT FOR S1: 1 PWM3 19 18 17 16 15 14 13 12 VCC VCC GND 2 PWM2 R3A (Opt.) R3B (Opt.) R3C (Opt.) R3D (Opt.) R4A (Opt.) R4B (Opt.) R4C (Opt.) R4D (Opt.) JP1 HEADER 5 3 1 PWM1 U4 MM74HC574MTC U2 PIC16LF877A-I/PT 6 4 2 4 R9A 100 R9B 100 R9C 100 R9D 100 R10A 100 R10B 100 R10C 100 R10D 100 20 E7 SS/RA5 RA4 RA3 RA2 RA1 RA0 5 3 1 R4 49.9K VCC U3 LTC1799CS5 J2 PIC PROG R5 1K GND C20 0.1uF 50V 10 C19 0.1uF 50V C C25 4.7uF 6.3V R1A (Opt.) R1B (Opt.) R1C (Opt.) R1D (Opt.) R2A (Opt.) R2B (Opt.) R2C (Opt.) R2D (Opt.) 2 1 4 8 4 BYP 7 SHDN 28 3 VDD 5 VDD OUT VSS GND IN 29 4 1 GND C24 2.2uF 16V C U6 LT1761ES5-5 2 E6 B Linear Technology Has Made A Best Effort To Design A Circuit That Meets Customer-Supplied Specifications; However, It Remains The Customer's Responsibility To Verify Proper And Reliable Operation In The Actual Application. Component Substitution And Printed Circuit Board Layout May Significantly Affect Circuit Performance Or Reliability. Contact Linear Technology Applications Engineering For Assistance. This Circuit Is Proprietary To Linear Technology And Supplied For Use With Linear Technology Parts. D 1630 McCARTHY BLVD. MILPITAS, CA. 95035 PHONE (408) 954-8400 FAX (408) 434-0507 Title 16-Channel Buck Mode LED Driver Size Document Number Date: Monday, December 04, 2006 DC1199A Rev LT3595EUHH Sheet E 2 of A 2