rohm referencedesigns
refacdc026
refacdc026reference design / application evaluation kit | rohm co., ltd.-凯发k8一触即发
isolation fly-back converter pwm method output 22.5w 15v
the bm2p016t-evk-002 evaluation board outputs 15v voltage from the input of 90vac to 264vac. the output current supplies up to 1.5a. bm2p016t which is pwm method dc/dc converter ic built-in 650v mosfet is used.
- the bm2p016t 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 1.4 ω 650 v mosfet built-in contributes to low power consumption and easy design.
- the flywheel diode is a fast recovery diode of 6a/600 v rf601tdnz, contributing to low power consumption.
- the conduction / radiation emission test is based on cispr 22 class b with best emi design.
design resources
- bm2p016t-evk-002
specifications
| board number | input voltage range | input frequency | output voltage | maximum output power | output current range | stand-by power | efficiency | output ripple voltage | size | operating temperature | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bm2p016t-evk-002 | 90 to 264vac | 47 to 63hz | 15v(typ.) | 15w(typ.) iout=1500ma | 0 to 1500ma *1 | 130mw iout=0a | 0.845 | 200mvpp *2 | 55mmx91mm | -10 to 65deg.c |
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 |
|---|---|---|
| bm2p016t-evk-002 | 3 | |
| 1 | ||
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bm2p016t-evk-002 | bm2p016t | ac/dc converters ics | recommended | - | ||||||||
| bm2p016t-evk-002 | rf05vam2s | fast recovery diodes | recommended | - | ||||||||
| bm2p016t-evk-002 | rfu02vsm8s | fast recovery diodes | recommended | - | ||||||||
| bm2p016t-evk-002 | rf601t2dnz | fast recovery diodes | active | - |