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Vicor PI3101 Cool-Power 60W直流电源解决方案

关键词:电源管理 DC/DC转换器

时间:2011-01-14 09:47:05       作者:Vicor       来源:PI3101

Vicor公司的PI3101是Cool-Power系列60W非常高密度的隔离式DC/DC转换器(400W/in3),输入电压36V-75V,输出3.3V / 18A,和通常的解决方案相比,空间降低了约50%. PI3101的效率高达87%,输入和输出的绝缘2250V,具有温度监视(TM)和超温保护(OTP),输入UVLO 和OVLO以及输出OVP,过流保护和自动重器起,可调软起动.主要用在PoE,通信,电讯系统和网络电源.本文介绍了PI3101主要特性, 功能方框图和典型应用电路,以及PI3101-EVAL1评估板电路图和材料清单.

PI3101:36-75V Input, 3.3V / 18A / 60W Output Very High Density Isolated DC-DC Converter (400W/in3)

The Cool-PowerTM PI3101 is a very high density isolated DC-DC converter implementing a high efficiency soft-switching power architecture. The PI3101 operates over a wide range input of 36V to 75Vdc, delivering ~60W of output power (3.3Vout @ 18A), yielding an unprecedented power density of 400W/in3. The PI3101 is available in a space saving surface mountable 0.87” x 0.65” x 0.265” package, achieving ~50% space reduction versus conventional solutions.

The switching frequency of 900kHz allows for small input and output filter components which further reduces the total size and cost of the overall system solution. The output voltage is sensed and fed back to the internal controller using a proprietary isolated magnetic feedback scheme which allows for high bandwidth and good common mode noise immuni..

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