A B C D E REVISION HISTORY This circuit is proprietary to Linear Technology and supplied for use with Linear Technology parts. 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 Applications Engineering for assistance. ECO REV DESCRIPTION DATE 3 PROTO 12/05/07 APPROVED 4 4 E1 R1 0.02 E3 VOUT VIN 1 VIN E2 VOUT SHDN U1 LTC4151CDD JP1 ADR0 VS GND HI C1 1000pF 100V JP2 ADR1 3 FLOAT 2 LO 2 JP3 1 1 HI 3 FLOAT 2 2 LO SENSE+ SENSE- VIN E4 GND FLOAT LO VP 10 GND 9 SHDN/ SDAO 8 SDA/ SDAI 7 SCL 6 VP E8 R3 10K R4 10K E16 1 ADR1 3 1 3 4 R13 51 4 D1 SMAT70A 2 7V - 75V ADR0 4 ADR1 ADR0 ADIN ADIN SHDN/SDAO E6 SDA/SDAI E7 SCL 3 E9 GND 11 5 GND E5 3 1/2W PULLUP LTC4151-1 OPTION C4 QUICK EVAL DEMO ONLY R8A 20K OPT 5V 7 WP 3 A2 2 A1 A0 1 8 + 1 2 7 4 + + 3 3 6 6 + + 5 4 5 8 + + 7 10 + + 9 12 + + 11 14 + + 13 PS9817-2 TP3 ISO_VP R11 1K OPT OPT R12 1K OPT 2 ISO2 8 1 7 2 SCL 6 3 U3 LT3010EMS8E-5 OPT 5 4 SDA/SDAI 4 1 C2 0.1uF ISO_I2C 0.1uF OPT ISO1 + 8 IN 5 SHDN OUT 4 VS GND TP SDA R8D 20K OPT 2 GND 2 VCC 5 SCL VSS 6 U4 24LC025-I/ST ADJ R9 0 OPT 1 2 R10 OPT C6 0.01uF OPT 0.47uF OPT PS9817-2 ISO_SDA TP5 ISO_SCL TP6 OPT CONTRACT NO. DRAWN MEI 1 TP4 ISO_GND C3 APPROVALS 9 R7 5.1K 8 R6 5.1K R8C 20K OPT SHDN/SDAO J1 R5 5.1K R8B 20K OPT DATE 12/21/06 CHECKED TECHNOLOGY TITLE APPROVED 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 1 SCH, LTC4151CDD, HIGH VOLTAGE MONITOR with ADC and I2C ENGINEER DESIGNER SIZE D.Reyes CAGE CODE DWG NO REV 3 DC1208A Monday, January 07, 2008 A B C SCALE: NONE D FILENAME: 1208A-3.DSN SHEET E 1 OF 1