Product category:
Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX6972/MAX6973 and MAX6974/MAX6975
Edited by the Electronicstalk Editorial
Team on 02 June 2006
LED drivers are made for the big screen
Constant-current LED drivers include features to simplify the design of large RGB indoor/outdoor LED display signs.
Maxim Integrated Products has released the MAX6972/MAX6973 (16-port) and the MAX6974/MAX6975 (24-port) constant-current LED driver family These drivers include features to simplify the design of large RGB indoor/outdoor LED display signs
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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The MAX6972-MAX6975 integrate an 8bit DAC to provide 256 steps of programmable constant-current outputs.
The outputs are matched port to port by 1%, which allows LEDs from different lots or manufacturers to be used easily in the same system.
In addition, 19bit of global and individual PWM are provided to support high resolution for intensity and hue control.
Other driver features include slew-rate-limited outputs to reduce EMI.
Data transfer is through a 35Mbit/s LVDS serial interface to support up to 65 frames per second, enabling full-motion video on giant LED displays.
Furthermore, a watchdog timer and LED fault detection enable the designer to easily identify faulty LEDs by simply reading the serial data stream.
The MAX6972/MAX6973 and MAX6974/MAX6975 operate over the extended -45 to +125C temperature range, and are available in 32-pin and 40-pin TQFN packages, respectively.
Prices start at $4.12 for the MAX6972/MAX6973, and $5.55 for the MAX6974/MAX6975 (1000-up, FOB USA).
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