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REFACDC025 - Reference Design

Isolation Fly-back Converter PWM method Output 24W 12V

ROHM BM2P0161-EVK-003 is from wide input voltage (90Vac to 264Vac) to output 12V 2A max. Constant Voltage Reference board. It used to PWM method DC/DC Converter IC BM2P0161.


  • BM2P0161 is including 650V High voltage power MOSFET and starter. The starter realize low Stand-by Power.
  • Output voltage control method is used current mode regulation, therefore it can used cycle by cycle current limit. Quick response in dynamic load changing is achieved.
  • Switching frequency is fixed 65kHz. Light load situation has frequency decrease function for higher efficiency.
  • Switching frequency jitter function enables lower EMI operation.
  • Various functions are included for safety, Soft start, Frequency Burst Mode, VCC OVP, Output OLP and thermal shut down.

BM2P0161-EVK-003

Design Resources

 

Specifications

 
Board Number Input Voltage Range Input Frequency Output Voltage Maximum Output Power Output Current Range Stand-by Power Efficiency Output Ripple Voltage Operating Temperature
BM2P0161-EVK-003 90 to 264Vac 47 to 63Hz 12V(Typ.) 24W Iout=2A 0 to 2A *1 73mW Iout=0A 86% OutPut:24V 1.5A 190mVpp BW=20MHz *2 Ta=25℃
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
BM2P0161-EVK-003 Mouser Electronics Inc. 4
Chip One Stop, Inc. 2
CoreStaff Co., Ltd. 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
BM2P0161-EVK-003 BM2P0161-Z AC/DC Converters ICs - Recommended - - - -
BM2P0161-EVK-003 RFN1LAM7S Fast Recovery Diodes - Recommended - - - - -
BM2P0161-EVK-003 RRE02VSM4S Standard Rectifier Diodes - Recommended - - - - -
BM2P0161-EVK-003 RB088BGE150 Schottky Barrier Diodes - Recommended - - -