MP024-10 Flyback Regulator SOIC8

MP024-10 Flyback Regulator SOIC8

The MP024-10 is a low-cost, offline, primary- side, flyback regulator with a simple, external circuit.

Key Specifications

Features

• Primary-Side Control without Optocoupler or Secondary Feedback Circuit
• Precise Constant Current and Constant Voltage Control (CC/CV)
• Variable Off-Time Peak-Current Control
• 700V/4.5Ω Integrated MOSFET
• 700V High-Voltage Current Source
• 30mW No-Load Power Consumption
• Programmable Cable Compensation
• Multiple Protections: OVP, OCkP, SSP, OLP, OTP, and VCC UVLO
• Low Cost and Simple External Circuit
• Available in a SOIC8-7B Package

Typical Application Circuit

Applications

• Cell Phone Chargers
• Adapters for Handheld Electronics

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