ADM8845
目录
概述................................................ ..................... 1
ADM8845 -规格............................................... ................ 3
热特性................................................ .............. 3
绝对最大额定值............................................... .............. 4
ESD注意事项................................................ .................................. 4
引脚配置和功能说明............................... 5
典型性能特征.............................................. 6
ADM8845操作................................................ ..................... 10
输出电流能力............................................... ......... 11
自动增益控制............................................... ............. 11
电流匹配................................................ ....................... 11
ADM8845亮度控制采用数字PWM信号..... 12
初步的技术数据
ADM8845的LED亮度控制采用PWM信号
适用于V
PWM
.......................................................................... 14
ADM8845的LED亮度控制使用直流电压
适用于V
BRIGHT
....................................................................... 14
ADM8845应用................................................ .................. 15
布局的考虑和噪音.............................................. 15
白光LED卖空............................................... ................... 15
开车不到六个LED ............................................. ....... 15
驱动闪光灯LED ............................................... ..................... 15
行车摄像头轻,主要和次要的LED .............................. 16
ADM8845电源效率............................................... ............ 17
外形尺寸................................................ ........................ 18
订购指南................................................ .......................... 18
修订历史
REV 。 PRJ 06/04
牧师PRJ 06/04 |第18页2