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LP5523

具有內(nèi)部程序存儲(chǔ)器和集成電荷泵的 9 通道 RGB/白光 LED 驅(qū)動(dòng)器 - DSBGA; ? Three Independent Program Execution Engines, Nine Programmable Outputs with 25.5-mA Full-Scale Current, 8-Bit Current Setting Resolution, and 12-Bit PWM Control Resolution\n? Adaptive High-Efficiency 1×/1.5× Fractional Charge Pump - Efficiency Up to 94%\n? LED Drive Efficiency Up to 93%\n? Charge Pump With Soft Start and Overcurrent and Short-Circuit Protection\n? Built-in LED Test \n? 200-nA Typical Standby Current\n? Automatic Power-Save Mode IVDD = 10 μA (Typical)\n? Two-Wire I2C-Compatible Control Interface\n? Flexible Instruction Set\n? Large SRAM Program Memory\n? Small Application Circuit\n? Source (High-Side) Drivers\n? Architecture Supports Color Control;

The LP5523 is a 9-channel LED driver designed to produce lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control.The LP5523 maintains excellent efficiency over a wide operating range by autonomously selecting the best charge-pump gain based on LED forward voltage requirements. The LP5523 is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10 μA (typical). The LP5523 has an I2C-compatible control interface with four pin selectable addresses. The device has a flexible general purpose output (GPO), which can be used as a digital control pin for other devices. INT pin can be used to notify processor when a lighting sequence has ended (interrupt function). Also, the device has a trigger input interface, which allows synchronization, for example, between multiple LP5523 devices. The device requires only four small, low-cost ceramic capacitors. The LP5523 is available in a tiny 25-pin DSBGA package (0.4-mm pitch). For all available packages, see the orderable addendum at the end of the data sheet.

LP5523

LP5523 Programmable 9-Output LED Driver

LP5523

Programmable 9-Output LED Driver

LP55231

具有內(nèi)部程序存儲(chǔ)器和集成電荷泵的 9 通道 RGB/白光 LED 驅(qū)動(dòng)器 - WQFN; ? 三個(gè)獨(dú)立的程序執(zhí)行引擎，9 個(gè)滿量程電流為 25.5mA 的可編程輸出，8 位電流設(shè)置分辨率和 12 位 PWM 控制分辨率\n? 自適應(yīng)高效 1x/1.5x 分?jǐn)?shù)型電荷泵 - 效率高達(dá) 94%\n? LED 驅(qū)動(dòng)效率高達(dá) 93%\n? 電荷泵具有軟啟動(dòng)和過流/短路保護(hù)\n? 內(nèi)置 LED 測(cè)試 \n? 待機(jī)電流典型值 200nA\n? 自動(dòng)節(jié)能模式；IVDD = 10μA（典型值）\n? 兩線制 I2C 兼容控制接口\n? 靈活的指令集\n? 大容量 SRAM 程序存儲(chǔ)器\n? 小型應(yīng)用電路\n? 源極（高側(cè)）驅(qū)動(dòng)器\n? 架構(gòu)支持顏色控制;

LP55231 是一款 9 通道 LED 驅(qū)動(dòng)器，專用于為移動(dòng)設(shè)備制造燈光效果。 采用高效的電荷泵，支持在鋰離子電池電壓范圍內(nèi)驅(qū)動(dòng) LED。 該器件配有內(nèi)部程序存儲(chǔ)器，可在不使用處理器控制的情況下運(yùn)行。LP55231 有一個(gè) I2C 兼容控制接口并配有四個(gè)引腳可選地址。 INT 引腳可用于在照明序列結(jié)束時(shí)（中斷功能）通知處理器。 另外，該器件具有一個(gè)觸發(fā)輸入接口，可實(shí)現(xiàn)多個(gè) LP55231 器件之間的同步。 根據(jù) LED 正向電壓要求自主選擇最佳電荷泵增益，可在寬運(yùn)行電壓范圍內(nèi)保持出色的效率。 當(dāng) LED 輸出未激活時(shí)，該器件能夠自動(dòng)進(jìn)入節(jié)能模式，從而將空閑流耗降至 10μA（典型值）。 僅需四個(gè)小型的低成本陶瓷電容。

LP5523_16

LP5523 Programmable 9-Output LED Driver

LP55231

LP55231 Programmable 9-Output LED Driver

LP55231

LP55231 Programmable 9-Output LED Driver

LP55231_16

LP55231 Programmable 9-Output LED Driver

LP55231SQE/NOPB

LP55231 Programmable 9-Output LED Driver

LP55231SQESLASHNOPB

LP55231 Programmable 9-Output LED Driver