MP6905

NOT RECOMMENDED FOR NEW DESIGNS

Fast turn off, Intelligent Synchronous Rectifier with Vfwd=30mV for flyback converters

ALTERNATIVE PART

NRFND Datasheet

MP6905 continues to be in production for existing customers. Please consider this alternative for new designs:

MP6906

Fast Turn-Off Intelligent Rectifier with Very Low Voltage Forward Regulation

Features & Benefits

Works with 12V Standard and 5V Logic Level FETS
Fast Turn-Off Total Delay of 25ns
4.2V~35V Wide VDD Operating Range
30mV VDS Regulation Function
150µA Quiescent Current in Light-Load Mode
Supports DCM and Quasi-Resonant Operation
SYNC Interface for CCM Operation
Supports High-Side and Low-Side Rectification
Power Savings of up to 1.5W in a Typical Notebook Adapter
SOIC-8 and TSOT23-6 Packages

… and many more!

Parameters Description

Pout (max) (W) (Recommended)
150
Type
Controller
fsw (max) (kHz)
400
Drain Rating
180
Iop (mA)
8
Iq (mA)
2
VDD (min) (V)
8
VDD (max) (V)
24
Light-Load Function
Yes
Grade
Catalog
Package (mm)
SOIC8-7
Power Range Defined
Yes
Active PFC
No
Isolated
Yes
Isolated LLC
No
Isolated Flyback
Yes
Non-Isolated
No
Secondary Synchronous Rectification
Yes
Vbr (V)
180
Internal MOSFET
No
Low Side Rectification
Yes
High Side Rectification
Yes
VCC (max) (V)
24
VCC (min) (V)
8
Recommended fsw (kHz)
65
Discrete Drive
Yes
Ideal Diode
No

The MP6905 is a low-drop, diode-emulator IC with external switch; MP6905 replaces Schottky diodes in high-efficiency, flyback converters. The chip regulates the forward drop of the external switch (about 30mV) and switches it off when the voltage becomes negative. MP6905 has a light-load sleep mode that reduces the quiescent current to <300uA. MP6905 is available in a compact SOIC-8 package.