LD7580RHigh Performance Interleaved CrM/ DCM Power Factor Correction Controller
The LD7580R is a controller for two phase interleaved power factor corrector with 180° phase shift. Due to 180° phase shift, the input current ripple is significantly reduced. It is proprietary voltage mode control algorithm provides near−unity power factor with THD improved. The device is highly integrated with a minimum number of external components. A robust suite of safety protections is built in to simplify the design to ensure the reliable operation at elevated temperatures.
Features
- Near−Unity Power Factor
- 180° Phase Shift in All Conditions Including transient
- CrM/ DCM operation
- -1800 mA / +1000 mA Totem Pole Driver with 12 V Gate Clamp
- Cycle-by-Cycle Current Limit
- Robust Protection Features
- Brown−In/Out Detection on VIN pin
- VCCOVP on VCC pin
- Dual O/UVP Function on INV/OUVP pin
- Winding open/ short circuit protection on ZCD pin
- GND open protection
- Bypass diode short circuit protection
- External Latch Function on LATCH pin
Applications
- LCD / Plasma Flat Panels
- Computer Power Supply
