16-channel LED driver targets large LED video displays

Santa Clara, Calif. — Catalyst Semiconductor, Inc. has expanded its LED drivers with the first in a new family of devices for large LED video displays. The CAT4016 is a 16-channel, constant-current sink LED driver designed for billboard, marquee, instrument and other larger, general-purpose LED displays in both indoor and outdoor applications.

The CAT4016 LED channels can operate with an output voltage as low as 0.4 V (for 2 mA to 100 mA LED current), to enable more power efficient designs. The maximum LED current is set by an external resistor. A high-speed, four-wire serial interface with up to a 25-MHz clock frequency controls each individual channel using a shift register and latch configuration. A serial output data pin allows multiple devices to be cascaded and programmed via one serial interface. The CAT4016 also features a thermal shutdown protection function to disable the LED outputs if the die temperature exceeds a set limit.

The CAT4016 is a replacement for popular devices from Macroblock, Toshiba and others, said Catalyst, and is available in a range of package options including 24-lead SOIC, TSSOP, QSOP and TQFN (4 x 4mm).

Pricing: $0.54 each in quantities of 10,000.
Availability: Samples are available now Projected lead time for production quantities is currently six to eight weeks ARO.
Product information: CAT4016

Catalyst Semiconductor , 1-408-542-1000,

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