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电路设计->基础电路图->其他基础电路图->RT8453/RT8453B应用电路(40V的高电压降压型L

RT8453/RT8453B应用电路(40V的高电压降压型L

作者:dolphin时间:2012-07-31

RT8453/RT8453B应用电路(40V的高电压降压型LED驱动器)

The RT8453B is a buck current mode PWM regulator for LED driving applications. It provides an integrated 1.5A switch and can be operated with a wide input voltage range from 4.5V to 40V. With a 500kHz operating frequency, the RT8453B allows all external inductor and input/output capacitors to be small. High efficiency is achieved with its 190mV current sensing capability. Dimming can be either analog or PWM digital signal driven. The RT8453B is available in a small SOP-8 (Exposed pad) package.

更多详细介绍:http://www.elecfans.com/soft/39/2010/2010093090875.html

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