LTC3901 - LTC3901是Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters

LTC3901是LINEAR凌力尔特公司的一款副边控制器产品，LTC3901是LTC3901是Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters，本站介绍了LTC3901的封装应用图解、特点和优点、功能等，并给出了与LTC3901相关的LINEAR元器件型号供参考。

LTC3901 - LTC3901是Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters - 副边控制器 - 电源管理 - 凌力尔特

LTC3901 - Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters

LTC3901 - Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters - Linear Technology（凌力尔特）

功能描述

The LTC3901 is a secondary side synchronous rectifier driver designed to be used in isolated push-pull and fullbridge converter power supplies. The chip drives two external N-channel MOSFETs and accepts a transformergenerated bipolar input to maintain sychronization with the primary side controller.

The LTC3901 provides a full range of protection features for the external MOSFETs. A programmable timeout function is included that disables both drivers when the synchronization signal is missing or incorrect. Additionally, the chip senses the output inductor current through the drain-source resistance of the two MOSFETs, turning off the MOSFETs if the inductor current reverses. The LTC3901 also shuts off the drivers if the supply is low or if the synchronization sequence is incorrect.

特点

N-Channel Synchronous MOSFET Driver

Programmable Timeout

Reverse Inductor Current Sense

Gate Drive Transformer Synchronization Sequence Monitor

Wide VCC Supply Range: 4.5V to 11V

15ns Rise/Fall Times at VCC = 5V, CL = 4700pF

Undervoltage Lockout

Small 16-Lead SSOP Package

应用

48V Input Isolated DC/DC Converters

Isolated Telecom Power Supplies