BD7F100EFJ-EVK-002: Isolated ±15V @ 165mA, 24V in, Step Down Flyback

Summary

BD7F100EFJ-EVK-002 Evaluation board delivers 2 outputs, +15 volts and -15 volts from an input 24 volts using BD7F100EFJ-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of 165mA per channel maximum.

BD7F100 is an optocoupler-less Isolated Flyback Converter. 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.

Specifications

Manufacturer Rohm Semiconductor
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Multi Output
Eval Board Part Number BD7F100EFJ-EVK-002-ND
Eval Board Supplier Rohm Semiconductor
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 2 Isolated
Voltage Out: Highest Current First ±15V
Current Out 165mA per Channel
Voltage In 24 V
Efficiency @ Conditions >75%, 24V in, 15V @ 80 ~ 165 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 18 + 8
Internal Switch Yes
Design Author Rohm
Application / Target Market Distributed Power Systems
Power: Industrial Power
Standby Current [Maximum] 10 µA
Quiescent Current [Maximum] 4 mA
Main I.C. Base Part BD7F100
Date Created By Author 2018-11
Date Added To Library 2020-07

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