MP6928A 4.3-35V Dual-Channel Intelligent Rectifier SOIC

MP6928A 4.3-35V Dual-Channel Intelligent Rectifier SOIC

The MP6928A is a dual-channel, fast-turn off, intelligent rectifier for synchronous rectification in LLC-resonant converters.

Key Specifications

Features

• Works with 12V Standard and 5V Logic Level FETS
• Compatible with Energy Star, 0.5W Standby Requirements
• Fast Turn-Off Total Delay
• 4.3V to 35V Wide VDD Operating Range
• <150μA Quiescent Current
• Supports CCM, CrCM, and DCM Operation
• Supports High-Side and Low-Side Rectification
• Available in an SOIC-8 Package

Typical Application Circuit

Applications

• AC/DC Adapters
• LCDs & PDP TVs

Design Notes

• The PFC inductor must support the maximum duty cycle at the lowest line voltage, which is where saturation risk peaks.
• High-voltage startup and X-capacitor discharge paths dominate no-load standby loss; verify them against the efficiency target.
• Leakage inductance and the RCD clamp set the turn-off loss — snubber values are a thermal trade-off, not a fixed recipe.
• Synchronous rectification timing must track the primary switching; a mistimed SR FET conducts through its body diode and fails hot.

Common Questions