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refacdc018

refacdc018reference design / application evaluation kit | rohm co., ltd.-ag凯发旗舰厅

non-isolation buck converter pwm method output 7.5w 15v

the bm2p0161-evk-001 evaluation board outputs 15v 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 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 1.0 ω 650 v 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-001

design resources

 
  • bm2p0161-evk-001

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-001 90 to 264vac 47 to 63hz 15v(typ.) 7.5w iout=500ma 0 to 500ma *1 36mw iout=0a 0.829 64mvpp *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-001 3
3
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-001 bm2p0161-z ac/dc converters ics recommended -
bm2p0161-evk-001 rre02vsm6s rectifier diodes recommended -