Santa Clara, Calif. Catalyst Semiconductor, Inc. has expanded its line of bus products with the CAT9532, a 16-bit LED driver with dimmer and blinker control functions, which can also be used as a general-purpose I/O bus expander.
A drop-in replacement for the PCA9532, the CAT9532 can drive 16 LEDs directly in parallel and provides LED dimming in 256 brightness steps for backlighting and RGB color mixing. The device can also turn each LED ON, OFF or blinking at one of two programmable rates for sensor control, power switch, pushbutton and status indicator light applications with I2C or SMBus interfaces.
Key specifications include frequency range of 0.593 Hz to 153 Hz and duty cycle of 0% to 99.6%. The 16 open drain outputs drive 25 mA each. The device is offered in 24-lead SOIC, TSSOP and 24-pad TQFN (4 x 4 mm) packages.
Pricing: The CAT9532 LED driver/blinkers are priced at $0.75 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: CAT9532
Catalyst Semiconductor, www.catsemi.com