BM2P249TF-EVK-001: 3W, 24V @ 125mA, 90 ~ 264VAC in


The BM2P249TF-EVK-001 evaluation board outputs 24 V voltage from the input of 90 Vac to 264 Vac. The output current supplies up to 0.125 A. BM2P249TF which is PWM method DC/DC converter IC built-in 650 V MOSFET is used. The BM2P249TF 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 9.5 Ω, 650 V MOSFET built-in contributes to low power consumption and easy design.


Manufacturer Rohm Semiconductor
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Single Output
Eval Board Part Number BM2P249TF-EVK-001-ND
Eval Board Supplier Rohm Semiconductor
Eval Board Normally In Stock
AC Voltage Universal (115 / 230V)
Outputs and Type 1 Non-Isolated
Voltage Out 24 V
Current Out 125 mA
Output Power 3 W
Features Current Limit (Adj. or Fixed)
Frequency Hopping
Light Load Mode
Over Current Protection
Over Voltage Protection
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >80%, 100 VACin, 24 V @ 60 ~ 125 mA
>75%, 230 VACin, 24 V @ 75 ~ 125 mA
No-load Input Power @ Voltage 105 mW @ 230 VAC
Switching Frequency 100 kHz
Internal Switch Yes
Component Count + Extras 11 + 3
Voltage In 90 ~ 264 VAC
Design Author Rohm
Application / Target Market HVAC
LED Commercial Lighting
LED Home Lighting
White Goods
Main I.C. Base Part BM2P249TF
Date Created By Author 2018-03
Date Added To Library 2019-10

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