BD7J201EFJ-LB Series

Low Power Isolated Flyback Converter IC with Integrated Switching MOSFET

Catalog

Low Power Isolated Flyback Converter IC with Integrated Switching MOSFET

Part	Voltage - Start Up	Mounting Type	Topology	Output Isolation	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Internal Switch(s)	Control Features	Supplier Device Package	Frequency - Switching	Duty Cycle	Package / Case	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Fault Protection
Rohm Semiconductor BD7J201EFJ-LBE2	5.2 V	Surface Mount	Flyback	Isolated	8 V	80 V		EN Soft Start	8-HTSOP-J	400 kHz	50 %	0.154 in	8-SOIC	3.9 mm	125 °C	-40 °C	Current Limiting Over Load Over Temperature Over Voltage Short Circuit UVLO

Catalog

Low Power Isolated Flyback Converter IC with Integrated Switching MOSFET

Key Features

• No Need of Any Optocouplers and Third Winding of Transformers, Set Output Voltage with Two External Resistors and Ratio of Transformer Turns, Adopt of Original Adapter Type Technology that Controls On Time, No Need of External Phase Compensation Parts by High-speed Load Response, Low Output Ripple by Fixed Switching Frequency (At normal operation), High Efficient Light Load Mode (At PFM operation), Shutdown and Enable Control, Built-in 120 V Switching MOSFET, Soft Start Function, Load Compensation Function, Various Protection FunctionInput Under Voltage Lockout (VIN UVLO)Over Current Protection (OCP)Over Voltage Protection (OVP)Short Circuit Protection (SCP)Thermal Shutdown (TSD)Battery Short Protection (BSP)Enable Over Voltage Protection (ENOVP)

Description

This product is a rank product for the industrial equipment market. This is the best product for use in these applications. This IC is an optocoupler-less isolated flyback converter. It is not necessary to use any optocouplers and feedback circuits by a third winding of transformers; these have been ever required to obtain a stable output voltage in conventional applications. Furthermore, adoption of the original adapter type technology that controls on time makes the external phase compensation parts unnecessary, which realizes the designs of isolated power supply application with drastic reduction of parts number, minimization of application circuits, and high reliability.