Datasheet Summary
LT8309 Secondary-Side Synchronous Rectifier Driver
Features n Works with DCM and BCM/CrCM Conduction Mode Flyback Topologies n VCC: 4.5V to 40V n Supports Up to 150V MOSFETs n 26ns Turn-Off Propagation Delay n Accurate Minimum On and Off Timers for Reliable
Operation n Adjustable and Accurate Trip Point: +5mV to
- 30mV n1Ω Gate Driver Pull-Down n SOT-23 5-Lead Package
Applications n High Output Current Flybacks n High Efficiency Flybacks
Description
The LT®8309 is a secondary-side synchronous rectifier driver that replaces the output rectifier diode in a flyback topology. By replacing the diode with a N-channel MOSFET, applications are no longer restricted by the heat...