驱动4-1/2数字仪表显示与MAX6958/59 LED驱动器

摘要：本应用笔记提供关于如何连接MAX6958和MAX6959 LED显示驱动器， 5位LED显示面板仪表应用需要小数点的显示范围-19999到19999的详细信息。

Maxim > App Notes > AUTOMOTIVE DISPLAY DRIVERS

Keywords: MAX6958, MAX6959, LED drivers, stick displays, panel meters, ammeters, voltmeters, led display Mar 18, 2003
drivers

APPLICATION NOTE 1936
Driving 4-1/2 Digit Meter Displays with the MAX6958/59 LED Drivers

Abstract: This application note provides details on how to connect the MAX6958 and MAX6959 LED display
drivers to 5-digit LED displays for panel meter applications requiring the display range -19999 to 19999 with
decimal points.


The MAX6958 and MAX6959 are 4-digit, 9-segment LED drivers which use a reduced pin count multiplexing
scheme to drive 36 segments using only 10 drive pins (Table 1). This application note discusses a technique to
drive four segments of a 5th, additional digit. A 5th digit is required for meter di