A B +48V INPUT C D RS .008 1/2W MIN. TRACE WIDTH FOR HIGH CURRENT PATH = 500 MILS E Q1 FDB3632 4 +48V / 5A OUTPUT 3 E1 E2 VDD 3 N/C R12 10K 1% MIN. ISOLATION LANE WIDTH = 55 MILS C2 0.1uF X7R R3 2.67K 1% CF 0.1uF X7R R2 4.42K 1% R13 5.11K 1% +5V 24 SOURCE 23 N/C 22 4 UV N/C 21 5 OV GPIO 20 INTVCC 19 FB 18 6 GND 7 ON 8 SCL ADR2 17 9 SDAI ADR1 16 10 SDAO ADR0 15 11 ALERT BD_PRST 14 ADIN 13 12 1 2 3 A1 WP 7 A2 SCL 6 4 VSS SDA 5 TP1 SMT PAD 4 JP5 ADR1 3 R14 10K 1% 1 JP4 ADR0 4 E5 R17 (Opt.) SCALING FULL SCALE 3 E6 GND EXT 2 +48V INPUT SHORT PIN SCL SMT PAD SCL 2 43.0 38.5 69.2 71.1 2 1 PROBE GND R21 1K Q2 VN0605T 1 Q3 VN0605T R25 100K 3 SDAI D6 LED (Green) SCL D7 LED (Green) 1 R26 100K 2 R24 100K R22 1K Q4 VN0605T 2 SDAO D5 LED (Green) 1 2 1 R23 100K 2 ALERT ALERT D4 LED (Red) 3 3 ALERT E12 R20 1K 3 R19 1K SDAO E11 OV GND E9 SDAO UV GND SDAI E10 OFF E7 SHORT PIN JP1 BD_PRST SDAI Q5 VN0605T E16 LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY 1 GND GND E13 Customer Notice GND E14 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. E15 NOTES: UNLESS OTHERWISE SPECIFIED A 2.56V TP2 2 V ADIN A/D JP8 ADIN SELECT E8 INPUT RANGE ON INTVCC E4 1 CT 0.1uF, 50V X7R 4 JP6 ADR2 3 A0 JP2 ON CONFIG + 3 VCC 8 R10 13K 1/4W 1 1 1 COUT (Opt.) R8 12.1K 1% I2C ADDRESS 2 R16 5.11K 1% U2 24LC025 R7 147K 1% E3 2 COM 3 SPLIT 2 4 6 8 10 12 14 1 JP3 SDA R4 13K 1/4W I2C R18 5.11K 1% C4 0.1uF, 50V X7R AUTO R15 5.11K 1% JP7 I2C PORT 1 + + 3 + + 5 + + 7 + + 9 + + 11 + + 13 + + C1 6800pF,100V X7R PWRGD (GPIO) 2 3 D8 1N4148W 1 D3 LED (Red) 2 TIMER 2 1 2 GATE 4 2 SENSE 2 2 + U1 LTC4260CGN 1 FLOAT R1 49.9K 1% HIGH R27 49.9K 1% LOW R11 392K 1% 3 CSNUB 0.01uF,100V X5R 2 Z1 SMBT70A D2 LED (Green) 3 CIN (Opt.) 1 R9 13K 1/4W 1 RSNUB 100 R6 100K R5 10 3 4 1 C3 0.1uF, 50V X7R D1 LED (Green) B C D LINEAR TECHNOLOGY CORPORATION 1630 McCARTHY BLVD. MILPITAS, CA. 95035 408-432-1900 408-434-0507 FAX Title 200W Positive 48V Hot Swap Controller With Current and Voltage Monitoring Size Document Number Date: Friday, August 06, 2004 Demo Circuit 786A LTC4260CGN Sheet E 1 of 1 Rev 1