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non-isolation buck converter pwm method output 10w 16.5v
the bm2p161w-evk-001 evaluation board outputs 16.5v voltage from the input of 90vac to 264vac. the output current supplies up to 0.6a. bm2p161w 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 650v starting circuit. built-in current detection resistor and feed-back circuit realize 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 65khz 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 1.9ω 650v mosfet built-in contributes to low power consumption and easy design.
- the flywheel diode is a fast recovery diode of 3a/600v rfn3bm6s, contributing to low power consumption.
- the conducted emission test is based on cispr 22 class b with best emi design.
design resources
- bm2p161w-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 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bm2p161w-evk-001 | 90 to 264vac | 47 to 63hz | 16.5v(typ.) | 9.9w iout=600ma | 0 to 600ma *1 | 45mw iout=0a | 0.847 | 69mvpp *2 | 30mm x 91mm | -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 |
|---|---|---|
| bm2p161w-evk-001 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bm2p161w-evk-001 | bm2p161w-z | ac/dc converters ics | recommended | - | ||||||||
| bm2p161w-evk-001 | rre02vsm6s | rectifier diodes | recommended | - |