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TPS61195,pdf(WLED Driver for L

消耗积分:3 | 格式:rar | 大小:890 | 2010-10-30

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The TPS61195 IC provides highly integrated solutions for large-size LCD backlighting. This device has a built-in high efficiency boost regulator with integrated 2.5A/50V power MOSFET. The eight current sink regulators provide high precision current regulation and matching. In total, the device can support up to 96 LEDs. Unused sinks are disabled by tying them to ground. The boost output automatically adjusts its voltage to the WLED forward voltage to improve efficiency.

The TPS61195 supports multiple brightness dimming methods. During PWM dimming, each IFB pin’s current is turned on/off at the duty cycle and frequency determined by an integrated pulse width modulation (PWM). The frequency of this signal is resistor programmable, while the duty cycle is controlled directly either from an external PWM signal input to the DPWM pin or through the SMBUS interface.

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声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉

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