BD7F200UEFJ-LB中文资料Optocoupler-less Isolated Flyback Converter数据手册ROHM规格书

描述 Description

This product guarantees long time supply availability in the industrial instrumentation market.

BD7F200 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.

特性 Features

• Guaranteed long time supply availability for
Industrial Applications.
• No need for an optocoupler or a transformer tertiary
winding.
The output voltage can be set by two external
resistors and the transformer turns ratio.
• Uses Original Adapted Type ON-Time Control Technology.
High-speed load response is realized and external
phase compensation parts are unnecessary.
• Fixed switching frequency and low output ripple
• Highly efficient light load mode available (PFM
operation)
• Shutdown / Enable Control
• Built-in N-Channel MOSFET
• Soft start function
• Output load compensation function
• Protection functions:
VIN Under Voltage Lock-Out (VIN UVLO)
Over Current Protection (OCP)
Thermal Shutdown Protection (TSD)