1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

General Description The MAX8645X/MAX8645Y charge pumps drive up to eight white LEDs with regulated constant current for uniform intensity. The main group of LEDs (M1–M6) can be driven up to 30mA per LED for backlighting. The flash group of LEDs (F1 and F2) is independently controlled and can be d

文件：310.54 Kbytes 页数：15 Pages

Maxim

美信

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

文件：257.73 Kbytes 页数：14 Pages

Maxim

美信

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

General Description The MAX8645X/MAX8645Y charge pumps drive up to eight white LEDs with regulated constant current for uniform intensity. The main group of LEDs (M1–M6) can be driven up to 30mA per LED for backlighting. The flash group of LEDs (F1 and F2) is independently controlled and can be d

文件：310.54 Kbytes 页数：15 Pages

Maxim

美信

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

文件：257.73 Kbytes 页数：14 Pages

Maxim

美信

1x/1.5x/2x White LED Charge Pumps with Two LDOs in 4mm x 4mm TQFN

文件：257.73 Kbytes 页数：14 Pages

Maxim

美信

1倍/1.5倍/2倍、白光LED电荷泵，带有两路LDO，4mm x 4mm TQFN封装

MAX8645X/MAX8645Y电荷泵能恒流驱动多达8个白色LED，以获得均匀的亮度。主LED (M1–M6)驱动电流高达30mA每LED，可用于背光。闪光灯LED (F1和F2)是单独控制的，并能为每个LED提供高达200mA驱动电流(或总共400mA电流)。两个片上200mA LDO可为照相机模块供电。两个LDO的输出电压可通过引脚编程，以满足不同照相机模块的要求。MAX8645X和MAX8645Y仅LDO输出电压不同。通过使用自适应1倍/1.5倍/2倍电荷泵模式和超低压差电流调整器，MAX8645X/MAX8645Y能够在单节锂电池的电压范围内实现高效率。1MHz固定开关频率允许采用纤 ·驱动多达8个LED\n·30mA/LED的驱动电流，用于背光\n·400mA的总驱动电流，用于闪光灯\n·两个内置低噪声200mA LDO\n·在Li+电池放电电压范围内，保持94%的最大效率/85%的平均效率(PLED/PBATT)\n·LED电流匹配度：0.2% (典型值) \n·自适应1倍/1.5倍/2倍模式切换\n·单线、串行脉冲接口用于亮度控制(32级)\n·2位逻辑(3电平)\n·过热TA降额保护功能\n·低输入纹波和低EMI\n·2.7V至5.5V电源电压范围\n·软启动、过压以及热关断保护\n·28引脚、TQFN、4mm x 4mm封装;

ADI

亚德诺

Package：28-WFQFN 裸露焊盘；包装：卷带（TR） 类别：集成电路（IC） LED 驱动器 描述：IC LED DRV RGLTR SGL WR 28TQFN

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亚德诺

Package：28-WFQFN 裸露焊盘；包装：卷带（TR） 类别：集成电路（IC） LED 驱动器 描述：IC LED DRV RGLTR SGL WR 28TQFN

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亚德诺