General Description

BD7F205EFJ-C is an opto-coupler-less isolated flyback

converter. Feedback circuit by optocouplers or the

auxiliary winding of transformers becomes unnecessary,

contributing to reduction of set parts. Furthermore, the

adoption of original adapted ON-time control technology

enables fast load response. In addition, the various

protection function realizes the designs of isolated power

supply application for high reliability.

Features

? AEC-Q100 Qualified (Note 1)

? No Need for Optocoupler and Third Winding of

Transformer

? Set Output Voltage with Two External Resistors and

Ratio of Transformer Turns

? Adopt of Original Adapted ON-Time Control Technology

Fast Load Response

? High Efficiency at Light Load Mode (PFM Operation)

? Shutdown Function / Enable Control

? Built-in 60 V Switching MOSFET

? Frequency Spectrum Spread

? Soft Start Function

? Load Compensation Function

? Various Protection Function

Input Low Voltage Lockout (UVLO)

Over Current Protection (OCP)

Thermal Shutdown (TSD)

REF Pin Open Protection (REFOPEN)

Short Circuit Protection (SCP)

Battery Short Protection (BSP)

? HTSOP-J8 Package

Applications

? Automotive Isolated Power Supplies

(E-Comp, Inverter etc)

? Industrial Isolated Power Supplies