APR348 - SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER
Datasheet Summary
Description
The APR348 is a secondary-side MOSFET driver for synchronous rectification, which can effectively reduce the secondary-side rectifier power dissipation and provide a high-performance solution.
Features
Synchronous Rectification Controller.
Suited for High-Side and Low-Side Flyback Converters in
CCM/DCM/QR Operation.
Minimized Turn-On and Turn-Off Delay.
Internal UVLO Protection.
Light Load Mode Control.
Eliminate False Turn-On with Resonant Ring.
Fewest External Components.
Moisture Sensitivity: MSL Level 1 per J-STD-020.
Terminals: Finish.
Matte Tin Plated Leads, Solderable per
M2003 JESD22-B102, Method 208.
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APR348
SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER
Description
The APR348 is a secondary-side MOSFET driver for synchronous rectification, which can effectively reduce the secondary-side rectifier power dissipation and provide a high-performance solution.
Pin Assignments
(Top View)
The APR348 can support continuous or discontinuous conduction mode (CCM and DCM) and quasi-resonant flyback operation based on a MOSFET operating on-time control technology. This technology provides minimized turn-on and turn-off delay to reduce power loss and keep safe operation without adding any external components or circuitry.
VCC 1 GND 2
Rx 3
6 VDET 5 DRISR 4 VDD
The APR348 can configure into high-side or low-side application to fit various design requirement.