LT LTC4371CMS#PBF

Overview

The LTC4371CMS#PBF is a two-input negative voltage ideal diode-OR controller that drives external N-channel MOSFETs as a low dissipation alternative to Schottky diodes in high power –48V systems. Low power dissipation and voltage loss eliminates the need for heatsinks and reduces PC board area. Power sources can be easily ORed together to increase total system power and reliability.

The 220ns reverse current turn-off is achieved by a powerful 2A gate driver with low propagation delay, thereby minimizing peak reverse current under catastrophic fault conditions. Open MOSFET and fuse faults are indicated at the FAULTB pin, which is capable of sinking 5mA to drive an LED or opto isolator.

Features

Applications

• Digital Radios
• MP3 Players
• Active OR-ing of Redundant (N+1) Power Supplies
• Automotive battery protection
• ADAS domain controller
• Camera ECU
• Head Unit
• USB HUBs
• Active ORing for redundant power
• Factory automation and control - PLC digital output modules