rohm breadcrumb

rohm referencedesigns

refacdc002

refacdc002reference design / application evaluation kit | rohm co., ltd.-ag凯发旗舰厅

non-isolation buck converter pwm method output 2 w 10 v

the bm2p109t1f-evk-001 evaluation board outputs 10 v voltage from the input of 90 vac to 264 vac. the output current supplies up to 0.2 a. bm2p109tf which is pwm method dc/dc converter ic built-in 650 v mosfet is used. the bm2p109tf contributes to low power consumption by built-in a 650 v starting circuit. built-in current detection resistor realizes compact power supply design.

  • current mode control imposes current limitation on every cycle, providing superior performance in bandwidth and transient response.
  • the switching frequency is 100 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 9.5ω 650v mosfet built-in contributes to low power consumption and easy design.
bm2p109tf-evk-001

design resources

 
  • bm2p109tf-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
bm2p109tf-evk-001 90 to 264vac 47 to 63hz 10v(typ.) 2w iout=200ma 2 to 200ma *1 20mw iout=0a 74.5% iout=200ma 35mvpp *2 18mm x 40mm -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
bm2p109tf-evk-001 3
2
1
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
bm2p109tf-evk-001 bm2p109tf ac/dc converters ics recommended -
bm2p109tf-evk-001 rfn1lam6s fast recovery diodes recommended -
bm2p109tf-evk-001 rre02vsm6s rectifier diodes recommended -