High-Performance Negative Charge Pump for 6 White LEDs in 3mm x 3mm Thin QFN

General Description The MAX8847Y/MAX8847Z negative charge pumps drive up to 6 white LEDs with regulated constant current for display backlight applications. By utilizing an inverting charge pump and extremely low-dropout adaptive current regulators, these ICs achieve very high efficiency over the

文件：1.73002 Mbytes 页数：13 Pages

Maxim

美信

High-Performance Negative Charge Pump for 6 White LEDs in 3mm x 3mm Thin QFN

General Description The MAX8847Y/MAX8847Z negative charge pumps drive up to 6 white LEDs with regulated constant current for display backlight applications. By utilizing an inverting charge pump and extremely low-dropout adaptive current regulators, these ICs achieve very high efficiency over the

文件：1.73002 Mbytes 页数：13 Pages

Maxim

美信

高性能负压电荷泵，可驱动6只白光LED，3mm x 3mm薄型QFN封装

MAX8847Y/MAX8847Z负压电荷泵能够以经过调节的恒定电流驱动6个白光LED，用于显示屏背光。器件采用反相电荷泵和超低压差自适应电流调节器，能够在单节Li+电池的整个供电电压范围内，甚至当LED正向导通电压存在较大的不匹配时，仍可保持极高效率。1MHz固定开关频率允许使用纤小的外部元件。器件的稳压架构经过优化，可确保低EMI和低输入纹波。MAX8847Y/MAX8847Z包含热关断、开路和短路保护。\n MAX8847Y/MAX8847Z支持独立的LED开启/关闭以及调光控制。MAX8847Z为LED1至LED6提供PWM调光控制；MAX8847Y为LED1至LED4提供PWM调光控 \n• 负压1倍压/1.5倍压电荷泵 \n• 自适应电流调节器 \n• 每路LED采用独立的电源供电 \n• 24mA至0.1mA脉冲串调光(MAX8847Y) \n• 24mA至0mA PWM调光(MAX8847Z) \n• 2% (最大值) LED电流精度，1% (典型值)匹配度 \n• 120µA低静态电流 \n• 0.4µA低关断电流 \n• 浪涌电流限制 \n• 温度降额功能 \n• 16引脚、3mm x 3mm薄型QFN封装;

ADI

亚德诺

High-Performance Negative Charge Pump for 6 White LEDs in 3mm x 3mm Thin QFN

General Description The MAX8847Y/MAX8847Z negative charge pumps drive up to 6 white LEDs with regulated constant current for display backlight applications. By utilizing an inverting charge pump and extremely low-dropout adaptive current regulators, these ICs achieve very high efficiency over the

文件：1.73002 Mbytes 页数：13 Pages

Maxim

美信

High-Performance Negative Charge Pump for 6 White LEDs in 3mm x 3mm Thin QFN

General Description The MAX8847Y/MAX8847Z negative charge pumps drive up to 6 white LEDs with regulated constant current for display backlight applications. By utilizing an inverting charge pump and extremely low-dropout adaptive current regulators, these ICs achieve very high efficiency over the

文件：1.73002 Mbytes 页数：13 Pages

Maxim

美信

6A, 2.7V-6V, High-Efficiency, Synchronous, Step-Down Switcher with I2C Interface In 2x3mm QFN

文件：506.42 Kbytes 页数：22 Pages

MPS

美国芯源