MP6982 600kHz Intelligent Rectifier TSOT23

MP6982 600kHz Intelligent Rectifier TSOT23

The MP6982 is a fast turn-off, intelligent rectifier for GaN HEMT applications.

Key Specifications

Features

• Supports Discontinuous Conduction Mode (DCM), Continuous Conduction Mode (CCM), Quasi-Resonant (QR) Operation, and Active-Clamp Flyback (ACF) Operation
• Up to 600kHz Switching Frequency (fSW) for GaN HEMT Applications
• Wide Output Voltage Range Down to 0V, Operational Even during an Output Short
• No Auxiliary Winding Requirement for High- Side (HS) or Low-Side (LS) Rectification
• Ringing Detection Prevents False Turn-On during DCM and QR Operation
• Compatible with Energy Star Standards
• 30ns Typical Fast Turn-Off and Fast Turn- On Delay
• 150µA Typical Quiescent Current (IQ)
• Supports HS and LS Rectification
• Available in a TSOT23-6 Package

Typical Application Circuit

Applications

• USB Power Delivery (PD) Fast Chargers
• Adapters

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