Rohm Breadcrumb

Rohm Referencedesigns

REFACDC031 - Reference Design

Flyback Type PWM Mode Isolated 13.5 V 1.3 A Non-Isolated 20 V 0.1 A

This evaluation board outputs an isolated voltage of 13.5V from an input of 90Vac to 264Vac, and the maximum output current is 1.3A. It outputs a non-insulated 20V voltage and can output a maximum output current of 0.1A.

  • Developed mainly as a power supply for air conditioners.
  • The non-insulated output can be used as a control power source for inverters and the like.
  • PWM controller for AC / DC power supplies, the BM2P0161-Z provides the optimum system for all products with outlets.


Design Resources



Board Number Input Voltage Range Input Frequency Output Voltage1 Output Current 1 Range Output Voltage2 Output Current 2 Range Maximum Output Power Standby Input Power Power supply efficiency Output Ripple Voltage 1 Output Ripple Voltage2 Operating Temperature
BM2P0161-EVK-004 90 to 264Vac 47 to 63Hz 13.5V(Typ.) 0 to 1.3A *1 20V(Typ.) 0 to 0.1A 19.55W 55mW Iout1=Iout2=0A Vin=230V 0.869 0.06Vpp(Typ.) *2 0.05Vpp(Typ.) *2 -10 to 65deg.C
*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-004 - -

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-004 BM2P0161-Z AC/DC Converters ICs - Recommended - - - -
BM2P0161-EVK-004 RB098BM150 Schottky Barrier Diodes - Recommended - - - -
BM2P0161-EVK-004 RF071LAM4S Fast Recovery Diodes - Recommended - - -
BM2P0161-EVK-004 RFN1LAM7S Fast Recovery Diodes - Recommended - - - - -
BM2P0161-EVK-004 1SS355VM Switching Diodes - Recommended - - - - -