用于 WLED
驅(qū)動(dòng)器的 TCA62735FLG
電荷泵 DC-DC
轉(zhuǎn)換器的典型應(yīng)用。 TCA62735FLG 是一款專為白光 LED 恒流驅(qū)動(dòng)而設(shè)計(jì)的電荷泵型 DC/DC 轉(zhuǎn)換器。該IC可以向2.8-4.2V輸入輸出120mA或更大的LED電流。該IC觀察
電源電壓和輸出電壓,并自動(dòng)切換至最佳升壓模式1、1.5或2倍??梢宰畲笙薅鹊匮娱L(zhǎng)電池壽命。該 IC 特別適用于驅(qū)動(dòng) PDA、手機(jī)或
手持終端設(shè)備 LCD 中的背光白色 LED
說(shuō)明
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Typical Application for TCA62735FLG Charge Pump DC-DC Converter for WLED Driver. The TCA62735FLG is a charge pump type DC/DC Converter specially designed for constant current driving of White LED. This IC can outputs LED current 120mA or more to 2.8-4.2 V input. This IC observes the power-supply voltage and the output voltage, and does an automatic change to the best of step up mode 1, 1.5 or 2 times. It is possible to prolong the battery longevity to its maximum. This IC is especially for driving back light white LEDs in LCD of PDA, Cellular Phone, or Handy Terminal Equipment