BD7F200EFJ-EVK-001: 4 Channel Isolated Flyback Converter, 15V @ 150mA, 24V in


The BD7F200EFJ-EVK-001 Evaluation board delivers four outputs each 15 volts from an input of 24 volts using the BD7F200EFJ-LB, Isolated Flyback DC/DC converter integrated circuit, with a maximum output current rating of 150mA.

BD7F200 is an optocoupler-less Isolated Flyback Converter integrated circuit. An optocoupler or the tertiary winding feedback circuit which was needed to obtain a stable output voltage isolated by a transformer in the conventional application becomes unnecessary, thus, the number of parts is reduced drastically, producing a small-sized and high-reliability application isolated type power supply.

Furthermore, a highly by the use of the Original Adapted-Type ON-Time Control Technology, it makes the external phase compensation parts become unnecessary, therefore a highly efficient isolated type power supply application can easily be produced.


Manufacturer Rohm Semiconductor
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Multi Output
Eval Board Part Number BD7F200EFJ-EVK-001-ND
Eval Board Supplier Rohm Semiconductor
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 4 Isolated
Voltage Out: Highest Current First 15V (x4)
Current Out 150mA per Channel
Voltage In 24 V
Efficiency @ Conditions >82%, 24V in, 15V @ 90 ~ 150 mA
Voltage Out Range - Fixed
Features Light Load Mode
Over Current Protection
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 400 kHz
Standby Current [Typical] 0 µA
Quiescent Current [Typical] 2 mA
Component Count + Extras 24 + 11
Internal Switch Yes
Design Author Rohm
Application / Target Market Distributed Power Systems
Industrial Power
Standby Current [Maximum] 10 µA
Quiescent Current [Maximum] 4 mA
Main I.C. Base Part BD7F200
Date Created By Author 2018-11
Date Added To Library 2020-03

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