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REFACDC019

REFACDC019 - Reference Design

Non-Isolation Buck Converter PWM method Output 6W 12V

The BM2P0161-EVK-002 evaluation board outputs 12V voltage from the input of 90Vac to 264Vac. The output current supplies up to 0.5A. BM2P0161 which is PWM method DC/DC converter IC built-in 650V MOSFET is used.

  • The BM2P0161 contributes to low power consumption by built-in a 650V starting circuit.
  • Current mode control imposes current limitation on every cycle, providing superior performance in bandwidth and transient response.
  • The switching frequency is 65kHz 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 1.0Ω 650V MOSFET built-in contributes to low power consumption and easy design.
  • The flywheel diode is a fast recovery diode of 3A/600 V RFN3BM6S, contributing to low power consumption.
  • The conduction / radiation emission test is based on CISPR 22 Class B with best EMI design.

BM2P0161-EVK-002

Design Resources

 

Specifications

 
Board Number Input voltage Input Frequency Output voltage Maximum output power Output current range Stand-by Power Efficiency Output ripple voltage Size Operating Temperature
BM2P0161-EVK-002 90 to 264Vac 47 to 63Hz 12V(Typ.) 6.0W Iout=500mA 0 to 500mA *1 31mW Iout=0A 0.795 59mVpp *2 55mm x 80mm -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
BM2P0161-EVK-002 DigiKey 2
Chip One Stop, Inc. 1
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-002 BM2P0161-Z AC/DC Converters ICs - Recommended - - - -
BM2P0161-EVK-002 RRE02VSM6S Standard Rectifier Diodes - Recommended - - - - -