Rohm Referencedesigns

REFFLBK002

REFFLBK002 - Reference Design

Isolated Flyback DC-DC Converter Input:24V,Vout:±15V,0.165A

The BD7F100EFJ-EVK-002 evaluation board is equipped with BD7F100EFJ-LB. The BD7F100HFN-EVK-003 evaluation board is equipped with BD7F100HFN-LB.

BD7F100EFJ-EVK-002 Evaluation board delivers outputs 15volts and -15 volts from an input 24 volts using BD7F100EFJ-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of maximum 0.165A.
BD7F100HFN-EVK-003 Evaluation board delivers outputs 15volts and -15 volts from an input 24 volts using BD7F100HFN-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of maximum 0.165A.

BD7F100EFJ-EVK-002

Design Resources

BD7F100EFJ-EVK-002
User's Guide
Schematic
BOM
Layout (PDF)

BD7F100HFN-EVK-003
User's Guide
Schematic
BOM
Layout (PDF)

Specifications

Board Number	Input Voltage	Output voltage1	Output voltage2	Output Current Range1	Output Current Range2	Operating Frequency	Maximum Efficiency	Size
BD7F100EFJ-EVK-002	24V	15V R4=3.9kΩ R5=76.8kΩ	-15V R4=3.9kΩ R5=76.8kΩ	3.2 to 165mA Maximum Output Power:5W	3.2 to 165mA Maximum Output Power:5W	400kHz	81.7% IO=165mA	70mm x 50mm
BD7F100HFN-EVK-003	24V	15V R4=3.9kΩ R5=76.8kΩ	-15V R4=3.9kΩ R5=76.8kΩ	3.2 to 165mA Maximum Output Power:5W	3.2 to 165mA Maximum Output Power:5W	400kHz	81.7% IO=165mA	70mm x 50mm

Distribution Inventory

Board Number	Distributor	Quantity Available
BD7F100EFJ-EVK-002	CoreStaff Co., Ltd.	4
	Chip One Stop, Inc.	2
	Farnell, An Avnet Company	2
	Newark, An Avnet Company	2
	DigiKey	1
BD7F100HFN-EVK-003	CoreStaff Co., Ltd.	2
	Farnell, An Avnet Company	1
	Newark, An Avnet Company	1

Key Components

Board Number	Part Number	Product Category	Datasheet	Status	SPICE	LTspice®	Thermal Model	Symbol & Footprint	3D STEP	Samacsys ECAD Library	Calc Tool	ROHM Solution Simulator
BD7F100EFJ-EVK-002	BD7F100EFJ-LB	Switching Regulators (Isolated type)	-	Active				-	-			-
BD7F100EFJ-EVK-002	1SS400SM	Switching Diodes	-	Recommended	-	-	-		-			-
BD7F100EFJ-EVK-002	KDZ18B	Zener Diodes	-	Not Recommended for New Designs	-		-		-			-
BD7F100EFJ-EVK-002	RB160MM-90	Schottky Barrier Diodes	-	Active	-	-	-		-			-
BD7F100HFN-EVK-003	BD7F100HFN-LB	Switching Regulators (Isolated type)	-	Recommended				-	-			-
BD7F100HFN-EVK-003	1SS400SM	Switching Diodes	-	Recommended	-	-	-		-			-
BD7F100HFN-EVK-003	KDZ18B	Zener Diodes	-	Not Recommended for New Designs	-		-		-			-
BD7F100HFN-EVK-003	RB160MM-90	Schottky Barrier Diodes	-	Active	-	-	-		-			-