典型應(yīng)用展示了 A8510 LED
驅(qū)動(dòng)器的 SEPIC 配置,具有精確的輸入
電流檢測(cè)和 VSENSE 至 GND 保護(hù)。 A8510 是一款用于 LCD 背光的多輸出白光 LED 驅(qū)動(dòng)器。它集成了一個(gè)電流模式升壓
轉(zhuǎn)換器、內(nèi)部
電源開關(guān)和 8 個(gè)電流吸收器。該升壓轉(zhuǎn)換器最多可驅(qū)動(dòng) 96 個(gè) LED,其中每串 12 個(gè) LED,電流為 40 mA。 LED 接收器還可以
并聯(lián)在一起,以實(shí)現(xiàn)更高的 LED 電流,高達(dá) 320 mA。 A8510 可采用 5 至 40 V 的單電源供電
說明
-
Typical application showing SEPIC configuration with accurate input current sense and VSENSE to GND protection for A8510 LED Driver. The A8510 is a multi-output white LED driver for LCD backlighting. It integrates a current-mode boost converter with internal power switch and 8 current sinks. The boost converter can drive up to 96 LEDs with 12 LEDs at 40 mA per string. The LED sinks can also be paralleled together to achieve even higher LED currents, up to 320 mA. The A8510 can operate from a single power supply, from 5 to 40 V