具有 32 指数调光步进、采用微型 SMD 封装的多显示无电感器 LED 驱动器 20-DSBGA -30 to 85
The LM2756 is a highly integrated, switched-capacitor, multi-display LED driver that can drive up to 8 LEDs in parallel with a total output current of 180mA. Regulated internal current sources deliver excellent current and brightness matching in all LEDs.
The LED driver current sinks are split into three independently controlled groups. The primary group Group A can be configured to drive four, five or six LEDs for use in the main phone display, while the secondary group Group B can be configured to drive one, two or three LEDs for driving secondary displays, keypads and/or indicator LEDs. An additional driver, D1C, is provided for additional indicator lighting functions.
The device provides excellent efficiency without the use of an inductor by operating the charge pump in a gain of 3/2 or in Pass-Mode. The proper gain for maintaining current regulation is chosen, based on LED forward voltage, so that efficiency is maximized over the input voltage range.
The LM2756 is available in "s tiny 20-bump, 0.4mm pitch, thin DSBGA package.
频率 1.3 MHz
输出接口数 8
输入电压DC 2.70V ~ 5.50V
输出电压 2V ~ 4V
输出电流 180 mA
供电电流 2.10 mA
静态电流 2.10 mA
调节输出数 8
开关频率 1.3 MHz
过温保护 Yes
输入电压Max 5.5 V
输入电压Min 2.7 V
工作温度Max 85 ℃
工作温度Min -30 ℃
电源电压 2.7V ~ 5.5V
安装方式 Surface Mount
引脚数 20
封装 WFBGA-20
宽度 1.61 mm
封装 WFBGA-20
工作温度 -30℃ ~ 85℃ TA
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/06/15
ECCN代码 EAR99