Description
19-0534; Rev 0; 5/06 KIT ATION EVALU E L B A IL AVA 16-Output PWM LED Drivers for Message Boards .
The MAX6972/MAX6973 precision current-sinking, 16-output PWM LED drivers drive red, green, and/or blue LEDs for full-color graphic message boards and.
Features
* 16 LED Current Sink Outputs (Two Banks of Eight Outputs)
* 32 LED Drive Option When Multiplexing
* 33MHz Clock Supports Up to 63 Frames per Second of Video
* Constant Output Current Calibration from 11mA to 55mA in 256 Steps
* EZCascade™ Interface Simplifies
Applications
* The standard application uses three MAX6972/ MAX6973s to drive eight RGB LEDs. The full-scale current for each bank of eight outputs is adjustable from 11mA to 55mA in 256 steps (0.3125% per step) to calibrate each color. The MAX6972/MAX6973 can optionally multiplex by using outputs MUX0 and MUX1,
