BD7F100HFN-LB Series

Optocoupler-less Isolated Flyback Converter

Catalog

Optocoupler-less Isolated Flyback Converter

Part	Regulator Topology	Current - Output	Board Type	Voltage - Input	Frequency - Switching	Voltage - Output	Utilized IC / Part	Supplied Contents	Main Purpose	Outputs and Type	Outputs and Type	Output Configuration	Topology	Voltage - Output (Min/Fixed) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max) [Max]	Function	Output Type	Voltage - Input (Min) [Min]	Number of Outputs	Supplier Device Package	Package / Case	Mounting Type
Rohm Semiconductor BD7F100HFN-EVK-002	Flyback	1 A	Fully Populated	24 V	400 kHz	5 V	BD7F100	Board(s)	DC/DC Step Down	Isolated	1
Rohm Semiconductor BD7F100EFJ-EVK-001	Flyback	1 A	Fully Populated	24 V	400 kHz	5 V	BD7F100	Board(s)	DC/DC Step Down	Isolated	1
Rohm Semiconductor BD7F100HFN-LBTR		1 A			400 kHz							Isolation Capable Positive	Flyback	0.78 V	-40 °C	125 ¯C	50 V	Step-Up/Step-Down	Adjustable	3 V	1	8-HSON	8-PowerUDFN	Surface Mount
Rohm Semiconductor BD7F100HFN-EVK-001	Flyback	800 mA	Fully Populated	24 V	400 kHz	5 V	BD7F100	Board(s)	DC/DC Step Down	Isolated	1
Rohm Semiconductor BD7F100EFJ-EVK-003	Flyback	200 mA	Fully Populated	5 VDC	400 kHz	5 V	BD7F100	Board(s)	DC/DC Step Down	Isolated	1

Catalog

Optocoupler-less Isolated Flyback Converter

Key Features

• Guaranteed long time supply availability forIndustrial Applications., No need for an optocoupler or a transformer tertiary winding.The output voltage can be set by two externalresistors and the transformer turns ratio., Uses Original Adapted Type ON-Time Control Technology.High-speed load response is realized and externalphase 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:VINUnder Voltage Lock-Out (VINUVLO)Over Current Protection (OCP)Thermal Shutdown Protection (TSD)

Description

This product guarantees long time supply availability in the industrial instrumentation market. BD7F100HFN-LB 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.