4 3 2 1 1 D12 D11 D10 G 2 TP9 E4 GND 22 21 TP12 ULED2 ULED17 20 TP13 3 ULED3 ULED16 19 TP14 TP10 4 ULED4 ULED15 18 TP15 TP11 5 ULED5 ULED14 17 TP16 6 ULED6 ULED13 16 TP17 TP18 8 ULED8 ULED11 14 TP19 9 ULED9 ULED10 13 TP20 C4 2.2uF 10V 0603 1 2 5 4 3 6 29 GND ULED12 24 E2 ULED7 15 RST C5 4.7uF 6.3V 0603 7 25 E1 C2M TP8 D ULED18 C2P ULED1 CPO 1 C1M TP7 VIN GND DVCC SCL SDA RST U18 U17 U16 U15 C U14 U13 U12 U11 U10 U1 LTC3220EPF/LTC3220EPF-1 J3 OPT 1 2 5 4 3 6 VIN GND DVCC SCL SDA RST B PWR OUT PWR IN TP21 TP23 SCL C6 0.1uF 10V TP22 SDA J1 1 3 5 7 9 11 13 + + + + + + + + + + + + + + 2 4 6 8 10 12 14 0.0 U2 1 R5 5.1K 5% R6 5.1K 5% TP1 SMT 2 A0 A1 3 A2 6 SCLK 7 WP 4 SDA 5 Vcc 8 C7 0.1uF 10V Vss 24LC025 TP2 SMT RST 4 WARNING! Do not look directly at operating LED. Serious eye damage may occur. TABLE 1 R1 402 R4 5.1K 5% DVCC E3 R3 CON14AP A R C2 2.2uF 10V 0603 26 27 TP6 23 TP5 28 C1 2.2uF 10V 0603 TP4 CPO VIN - 5.1V 0 - 360mA 4 B D22 RGB4 3 R 2 G 3 B 4 R D23 RGB5 4 1 D15 D14 D13 2 1 2 4 G 3 1 3 2 1 TP3 J2 OPT B B D24 RGB6 C3 4.7uF 6.3V 0603 2.9V - 5.5V GND R SDA VIN G SCL U9 B D18 D17 D16 12 U8 R DVCC U7 G D1 11 U6 B D2 10 U5 R D3 C1P U3 U4 D4 D19 RGB1 VIN U2 D5 D20 RGB2 4 2 U1 C G 3 B D D6 3 D7 2 D8 D21 RGB3 4 D9 1 E5 R2 1.0M 5% C8 1000pF 50V ASSY TYPE U1 DC1265A-A LTC3220EPF DC1265A-B LTC3220EPF-1 CUSTOMER NOTICE 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. 3 APPROVALS Nick Carlone DATE - CHECKED APPROVED TECHNOLOGY TITLE GND NOTE: UNLESS OTHERWISE NOTED, ALL CAPACITORS AND RESISTORS ARE 0402, ALL RESISOTRS ARE 1% CONTRACT NO. DRAWN E6 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 A LTC3220EPF/LTC3220EPF-1 360mA UNIVERSAL 18-CHANNEL LED DRIVER ENGINEER Marty Merchant 4/5/07 SIZE CAGE CODE DESIGNER Wednesday, December 12, 2007 2 SCALE: FILENAME: DWG NO REV DC1265A SHEET 1 A 1 OF 1