DESCRIPTION

The LTC®4372/LTC4373 are positive high voltage ideal diode controllers that drive an external N-channel MOSFET to replace a Schottky diode. They control the forward voltage drop across the MOSFET to ensure current delivery or current transfer from one path to the other even at light loads.

FEATURES

■ Reduces Power Dissipation by Replacing a Power Schottky Diode

■ Low Quiescent Current: 5µA Operating, 0.5µA Shutdown

■ Wide Operating Voltage Range: 2.5V to 80V

■ Reverse Supply Protection to –28V

■ High Side External N-Channel MOSFET Drive

■ Drives Back-to-Back MOSFETs for Inrush Control and Load Switching

■ Fast Reverse Current Turn-Off within 1.5µs

■ 8-Lead MSOP and 3mm × 3mm DFN Packages

APPLICATIONS

■ Automotive Battery Protection

■ Redundant Power Supplies

■ Portable Instrumentation

■ Solar Powered Systems

■ Energy Harvesting Applications

■ Supply Holdup

LTC4353属于集成电路（IC） > OR 控制器，理想二极管。亚德诺半导体技术有限公司制造生产的LTC4353OR 控制器，理想二极管理想二极管控制器也称为 OR-ing 控制器，可用于以仅允许单向电流的方式控制外部通道晶体管（通常为 FET），类似于整流二极管，但传导损耗低得多。在其他应用中，它们通常用于在为了冗余和增加电流输出能力而并行连接的电源中提供逆流保护。