MP6900DJ-LF-P

Power Supply Controllers, Monitors Overview

The MP6900DJ-LF-P is a low-drop fast turn-off intelligent rectifier driver manufactured by Monolithic Power Systems. It operates within an input voltage range of 8V to 24V and supports switching frequencies up to 400 kHz. The device features a maximum duty cycle of 50% and delivers an output voltage of 15 V with an output current of 8 mA. Designed for quasi-resonant flyback topologies, it functions in non-isolated configurations across an operating temperature range of -40°C to +85°C. The component is housed in a TSOT-23-5 surface-mount package.

Power Supply Controllers, Monitors Feature Summary

• Regulates external switch forward voltage drop to approximately 70mV for high efficiency
• Provides rapid turn-off capability with a total delay of 20ns to prevent reverse conduction
• Supports standard MOSFETs and logic-level MOSFETs for flexible implementation
• Enables compliance with Energy Star 1W standby requirements through optimized control

Power Supply Controllers, Monitors Applications

• DCM and quasi-resonant flyback converters
• CCM flyback converters
• High-efficiency laptop adapters
• Secondary side synchronous rectification

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'P' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status as listed in official documentation. Ensure the TSOT-23-5 footprint matches the design layout. Check for any obsolescence notices or recommended alternative part numbers from the manufacturer before finalizing procurement plans.

Power Supply Controllers, Monitors Selection Notes

Select this component for flyback designs requiring precise secondary-side rectification control. It is suitable for applications needing support for both standard and logic-level MOSFETs. Consider its 400 kHz frequency limit and 8V-24V supply range against system requirements. Evaluate thermal performance within the specified -40°C to +85°C operational window.

Power Supply Controllers, Monitors Part Context

This device belongs to the MP6900 series of intelligent rectifier drivers designed to replace Schottky diodes in flyback converters. It integrates control logic to drive external switches, optimizing efficiency by minimizing conduction losses. The series targets power supplies aiming for strict standby power regulations while maintaining high conversion efficiency across varying load conditions.

Power Supply Controllers, Monitors Replacement Considerations

MP6902 is explicitly recommended by the manufacturer as an alternative for new designs due to additional light-load management features.