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REFACDC021

REFACDC021 - Reference Design

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

The BM2P016-EVK-002 evaluation board outputs a 12V voltage from an input of 90Vac to 264Vac. The output current provides up to 1.0A. The BM2P016 PWM type DC/DC converter IC with 650V MOSFET is used.

  • The BM2P016 contributes to low power consumption by incorporating a 650V withstand voltage startup circuit.
  • Using current mode control, cycle-by-cycle current limiting provides excellent performance in bandwidth and transient response.
  • The switching frequency is fixed at 65kHz. At light loads, frequency reduction achieves high efficiency.
  • Built-in frequency hopping function contributes to low EMI. The low on-resistance 1.4Ω 650V withstand voltage MOSFET is built in, contributing to low power consumption and easy design.
  • The optimized EMI design complies with CISPR 22 Class B for noise terminal voltage / radiation emission testing.

BM2P016-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
BM2P016-EVK-002 90 to 264Vac 47 to 63Hz 12V(Typ.) 12W Iout=1000mA 0 to 1000mA *1 110mW Iout=0A 0.812 42mVpp *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
BM2P016-EVK-002 CoreStaff Co., Ltd. 2
DigiKey 2
Ameya Holding Limited 1
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
BM2P016-EVK-002 BM2P016-Z AC/DC Converters ICs - Recommended - - - -
BM2P016-EVK-002 RRE02VSM6S Standard Rectifier Diodes - Recommended - - - - -