NXP | PCA9635PW/Q900,118

The PCA9635PW/Q900,118 is an I2C-bus controlled 16-bit LED driver optimized for Red/Green/Blue/Amber (RGBA) color mixing applications. Each LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 97 kHz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the LED to be set to a specific brightness value.

It is one of the first LED controller devices in a new Fast-mode Plus (Fm+) family. Fm+ devices offer higher frequency (up to 1 MHz) and more densely populated bus operation (up to 4000 pF) 

Features:

• 16 LED drivers. Each output programmable at:
  • Off
  • On
  • Programmable LED brightness
  • Programmable group dimming/blinking mixed with individual LED brightness
• 7 hardware address pins allow 126 devices to be connected to the same I2C-bus
• Software Reset feature (SWRST Call) allows the device to be reset through the I2C-bus
• 25 MHz internal oscillator requires no external components
• Internal power-on reset
• Noise filter on SDA/SCL inputs
• Edge rate control on outputs
• No glitch on power-up
• Supports hot insertion
• Low standby current
• Operating power supply voltage range of 2.3 V to 5.5 V
• 5.5 V tolerant inputs
• -40 °C to +85 °C operation

Applications:

• RGB or RGBA LED drivers
• LED status information
• LED displays
• LCD backlights
• Keypad backlights for cellular phones or handheld devices