Rohm Referencedesigns

REFACDC026

REFACDC026 - Reference Design

Isolation Fly-back Converter PWM method Output 22.5W 15V

The BM2P016T-EVK-002 evaluation board outputs 15V voltage from the input of 90Vac to 264Vac. The output current supplies up to 1.5A. BM2P016T which is PWM method DC/DC converter IC built-in 650V MOSFET is used.

The BM2P016T contributes to low power consumption by built-in a 650 V starting circuit.
Current mode control imposes current limitation on every cycle, providing superior performance in bandwidth and transient response.
The switching frequency is 65 kHz in fixed mode. At light load, frequency is reduced and high efficiency is realized.
Built-in frequency hopping function contributes to low EMI. Low on-resistance 1.4 Ω 650 V MOSFET built-in contributes to low power consumption and easy design.
The flywheel diode is a fast recovery diode of 6A/600 V RF601TDNZ, contributing to low power consumption.
The conduction / radiation emission test is based on CISPR 22 Class B with best EMI design.

Type	Title	Related Board Number	Last Updated
User's Guide	Reference Board BM2P016T-EVK-002	BM2P016T-EVK-002	2018/06/13

Design Resources

Type	Title	Related Board Number	Last Updated
Schematic	BM2P016T-EVK-002 Schematics	BM2P016T-EVK-002	2023/08/02
BOM	BM2P016T-EVK-002 Partslist	BM2P016T-EVK-002	2023/08/02
Layout (PDF)	BM2P016T-EVK-002 Layout	BM2P016T-EVK-002	2023/08/02

Specifications

Board Number	Input Voltage Range	Input Frequency	Output Voltage	Maximum Output Power	Output Current Range	Stand-by Power	Efficiency	Output Ripple Voltage	Size	Operating Temperature
BM2P016T-EVK-002	90 to 264Vac	47 to 63Hz	15V(Typ.)	15W(Typ.) Iout=1500mA	0 to 1500mA *1	130mW Iout=0A	0.845	200mVpp *2	55mmx91mm	-10 to 65deg.C

Remarks:
*1 Please adjust operating time, within any parts surface temperature under 105 °C
*2 Not include spike noise

Distribution Inventory

Board Number	Distributor	Quantity Available
BM2P016T-EVK-002	Mouser Electronics Inc.	3
	Chip One Stop, Inc.	1
	CoreStaff Co., Ltd.	1
	DigiKey	1

Key Components

Board Number	Product Category	Part Number	Datasheet	Status	SPICE	LTspice®	Thermal Model	3D STEP	Calc Tool	ROHM Solution Simulator
BM2P016T-EVK-002	AC/DC Converters ICs	BM2P016T	-	Recommended					-	-
BM2P016T-EVK-002	Fast Recovery Diodes	RF05VAM2S	-	Recommended	-	-	-	-		-
BM2P016T-EVK-002	Fast Recovery Diodes	RFU02VSM8S	-	Recommended	-	-	-	-		-
BM2P016T-EVK-002	Fast Recovery Diodes	RF601T2DNZ	-	Active			-			-

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