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[原创]Rohm BM2SCQ123T-LBZ准谐振AC-DC转换器解决方案

关键词:电源管理 AC/DC转换器 SiC-MOSFET Rohm BM2SCQ123T

时间:2021-07-08 16:33:19       来源:中电网

Rohm公司的BM2SCQ123T-LBZ是准谐振AC/DC转换器,为所有产品提供最佳的系统.准谐振操作赋能了软开关,有助保持EMI低数值.器件包含了1700 V/4 A SiC(碳化硅)MOSFET,使得设计变得更容易.突发操作降低了轻负载时的输入功率.器件还包含了各种保护功能如软起动功能,突发操作,逐个周期的过流限制,过压保护功能以及过载保护功能.待机时的低功耗19 μA. VCC电压为15.0V到27.5V,漏极电压最大为1700V.正常工作电流为800 μA,突发工作的电流为500 μA,最大工作频率为120kHz.工作温度为-40 C 到 +105 C,主要用在工业设备,AC适配器和家用电器.本文介绍了BM2SCQ123T-LBZ主要特性,框图和应用电路,48W 24V BM2SC123FP2-LBZ参考板主要特性,电路图,材料清单和变压器指标,以及PCB设计图.

 

BM2SCQ123T-LBZ is a quasi-resonant AC/DC converter that provides an optimum system for all products which has an electrical outlet. Quasi-resonant operation enables soft switching and helps to keep the EMI low. This IC can be designed easily because it includes the 1700 V/4 ASiC (Silicon-Carbide) MOSFET. Design with a high degree of flexibility is achieved with current detection resistors as external devices. The burst operation reduces an input power at light load. It includes various protection functions, such as soft start function, burst operation, over current limiter per cycle, over-voltage protection function, overload protection function.

This is the product guarantees long time support inindustrial market.

BM2SC12xFP2-LBZ series is a quasi-resona..

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