Compact, High Efficiency, High Power Flash/Torch LED Driver with Dual Interface

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Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface

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ADP1653: 小尺寸、高效率、大功率、閃光燈/手電筒模式LED驅(qū)動(dòng)器，雙模式接口

ADP1653是一款專為手機(jī)優(yōu)化的超小尺寸、高效率、大功率、閃光燈LED驅(qū)動(dòng)器。該器件的高效率與動(dòng)態(tài)LED電流控制可以在微暗的環(huán)境下提高閃光燈的亮度和圖像質(zhì)量。ADP1653的峰值效率為92%，在鋰電供電情況時(shí)，性能要優(yōu)于電荷泵解決方案\nADP1653具有雙模式接口，可以配置為2 bit邏輯或I2C?接口。利用外部電阻或通過I2C接口可以對(duì)指示與大功率LED電流進(jìn)行編程。為了使整個(gè)閃光燈亮度最大，ADP1653提供輸入可以在50 μs內(nèi)降低閃光燈電流，即Tx mask。在RF傳輸過程中，Tx masking可以通過降低LED電流來降低功耗。\nADP1653解決方案在I2C模式僅需要 2.1 A, 12 V電源開關(guān)\n6.4 mm × 7.2 mm的小尺寸解決方案\n92% 高效能\n低噪聲：1.2 MHz PWM \n可編程定時(shí)器寄存器: 閃光燈超時(shí)高達(dá)820 ms\n可編程指示燈LED電流，高達(dá)20 mA\n可編程閃光燈和手電筒模式電流 \n手電筒模式，高達(dá)200 mA\n閃光燈模式，高達(dá)500 mA \n在50 μs內(nèi)啟動(dòng)Tx masking\n安全特性\n中斷輸出引腳\n故障條件寄存器，短路保護(hù)\n輸出過壓保護(hù)\n過熱保護(hù)\n集成電流限制與軟啟動(dòng)\n引腳選擇接口: 2 bitI2C: 2-bit 邏輯或 I2C \n輸入電壓范圍：2.75 V ～5.5 V ;

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Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface

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Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface

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Compact, High Efficiency, High Power Flash/Torch LED Driver with Dual Interface

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絲?。?a target="_blank" title="Marking" href="/l3h/marking.html">L3H；Package：LFCSP；Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface

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Compact, High Efficiency, High Power Flash/Torch LED Driver with Dual Interface

文件：953.22 Kbytes 頁數(shù)：24 Pages

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Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface

文件：981.89 Kbytes 頁數(shù)：24 Pages

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Compact, High Efficiency, High Power Flash/Torch LED Driver with Dual Interface

文件：953.22 Kbytes 頁數(shù)：24 Pages

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