LED Driver Features Dimmer and Blinker Control Functions
Catalyst Semiconductor, Inc. expanded its line of bus products with the CAT9532, a 16-bit LED driver with dimmer and blinker control functions that can also be used as a general purpose I/O expander. A drop-in replacement for the PCA9532, the device can drive 16 LEDs directly in parallel, and it provides LED dimming in 256 brightness steps for backlighting and RGB color mixing. It can also turn each LED ON, OFF or blinking at one of two programmable rates for sensor control, power-switch, push-button and status indicator light applications with I2C or SMBus interfaces. The drivers are packaged in 24-lead SOIC, TSSOP and 24-pad TQFN (4 mm × 4 mm).
Catalyst Semiconductor, Inc., 408 542-1000, www.catsemi.com