Display Driver works on large LEDs.

Press Release Summary:



MIC5400 digitally programmable LED display driver has 16 outputs arranged in 2 banks of 8 channels. Each bank has 4-bit brightness control and each output has 10-bit intensity control. Driver incorporates suite of protection functions including over temperature shutdown, power-on reset, open-fault protection, soft-start and watchdog. It provides 14-bit resolution for applications such as outdoor video screens and large LED displays.




Original Press Release:


Driver for Large Outdoor LED Video Displays Provides 14-bit Resolution and Full Protection


* digitally programmable display driver with 16 outputs arranged in two banks of eight channels.
* designed to be daisy-chained together.
* full suite of protection features

SAN JOSE, Calif. -- (December 5, 2001) - Designed for large outdoor LED video displays, providing 14-bit control of up to 16 channels, the MIC5400 is now available from Micrel Semiconductor (NASDAO: MCRL), an industry leader in analog and broadband communications integrated circuits.

The MIC5400 is a digitally programmable LED display driver with 16 outputs arranged in two banks of eight channels. Each bank has 4-bit brightness control and each output has 10-bit intensity control. The MIC5400 incorporates a full suite of protection features including over temperature shutdown, power-on reset, open-fault protection, soft-start and watchdog.

"With this device were are addressing the specific needs of large-scale LED video displays" said Scott Brown, Linear and RF Business Unit Manager "We have incorporated a lot of features to ensure high performance and reliable operation."

Provides 14-bit Resolution and Full Protection
The MIC5400 is designed for multiple devices to be daisy-chained together and to minimize the effects of power supply transients and EMI. The MIC5400 incorporates an 8.3ns delay between the switching of each output, and each MIC5400 has a semi-random time delay to ensure that multiple MIC5400s within a system do not switch concurrently.

Summary of Features & Applications:
MIC5400 LED Video Display Driver Features + 16 individually controllable outputs (two banks of eight output)
* 4-bit brightness control
* 1 0-bit intensity control
* Over-temperature shutdown
* Watchdog
* Power-on reset
* Output open-fault detection Applications
* Outdoor video screens
* Large LED displays

The MIC5400 is provided in wide SOIC-28 packaging and priced at $4.70 in 1k quantities. Samples are available immediately, and production quantities are available in 8 weeks ARO.

Micrel Semiconductor is a leading manufacturer of advanced, high performance communications, clock management, mixed signal, analog and power ICs. These products include devices for fiber-optic telecommunications and networking, cellular telephones, servers, portable computer systems, computer peripherals, process control systems, consumer electronics and power supplies.

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