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refacdc025
refacdc025reference design / application evaluation kit | rohm co., ltd.-凯发k8一触即发
isolation fly-back converter pwm method output 24w 12v
rohm bm2p0161-evk-003 is from wide input voltage (90vac to 264vac) to output 12v 2a max. constant voltage reference board. it used to pwm method dc/dc converter ic bm2p0161.
- bm2p0161 is including 650v high voltage power mosfet and starter. the starter realize low stand-by power.
- output voltage control method is used current mode regulation, therefore it can used cycle by cycle current limit. quick response in dynamic load changing is achieved.
- switching frequency is fixed 65khz. light load situation has frequency decrease function for higher efficiency.
- switching frequency jitter function enables lower emi operation.
- various functions are included for safety, soft start, frequency burst mode, vcc ovp, output olp and thermal shut down.
design resources
- bm2p0161-evk-003
specifications
| board number | input voltage range | input frequency | output voltage | maximum output power | output current range | stand-by power | efficiency | output ripple voltage | operating temperature | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bm2p0161-evk-003 | 90 to 264vac | 47 to 63hz | 12v(typ.) | 24w iout=2a | 0 to 2a *1 | 73mw iout=0a | 86% output:24v 1.5a | 190mvpp bw=20mhz *2 | ta=25℃ |
remarks:
*1 please adjust operating time, within any parts surface temperature under 105 °c
*2 not include spike noise
*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-003 | 3 | |
| 2 | ||
| 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-003 | bm2p0161-z | ac/dc converters ics | recommended | - | ||||||||
| bm2p0161-evk-003 | rfn1lam7s | fast recovery diodes | recommended | - | ||||||||
| bm2p0161-evk-003 | rre02vsm4s | standard rectifier diodes | recommended | - | ||||||||
| bm2p0161-evk-003 | rb088bge150 | schottky barrier diodes | recommended | - |