全局亮度控制添加静态MAX6956和MAX6957 LED驱动器

摘要：本应用笔记讨论技术来改变一次显示所有的LED段的强度（全局亮度控制）的MAX6956或MAX6957的静态LED驱动器驱动。这种控制是附加段段调整的驱动程序已经提供。该说明包括在Excel电子表格的形式，可下载，以协助设计的计算器。
Maxim > App Notes > AUTOMOTIVE DISPLAY DRIVERS

Keywords: GPIO, port expanders, static LED, LED display drivers, LED drivers, display drivers, SPI, I2C, serial, Jun 28, 2002
blink, 3V

APPLICATION NOTE 1141
Adding Global Intensity Control to the MAX6956 and MAX6957 Static
LED Drivers

Abstract: This application note discusses techniques to change the intensity of all the LED segments of a display
at once (global intensity control) driven by the MAX6956 or MAX6957 static LED drivers. This control is
additional to the segment-by-segment adjustment the drivers offer already. The note includes a calculator in
the form of an Excel spreadsheet that may be downloaded to assist design.


This application note discusses some techniques for adding global LED intensity control to the MAX6956