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PCU9655 - 16-channel UFm 5MHz bus 100mA 40V LED driver

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General Description

The PCU9655 is a UFm I2C-bus controlled 16-channel LED driver optimized for voltage switch dimming and blinking 100 mA Red/Green/Blue/Amber (RGBA) LEDs.

Each LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at approximately 31.25 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.

An additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency of about 122 Hz and an adjustable frequency roughly between 15 Hz to once every 16.8 seconds with a duty cycle that is adjustable from 0 % to 99.6 % that is used to either dim or blink all LEDs with the same value.

Overview

PCU9655 16-channel UFm 5 MHz bus 100 mA 40 V LED driver Rev.

2 — 2 October 2012 Product data sheet 1.

Key Features

  • 16 LED drivers. Each output programmable at:.
  • Off.
  • On.
  • Programmable LED brightness.
  • Programmable group dimming/blinking mixed with individual LED brightness.
  • Programmable LED output enable delay to reduce EMI and surge currents.
  • 16 output channels can sink up to 100 mA, tolerate up to 40 V when OFF.
  • 5 MHz Ultra Fast-mode unidirectional interface (write only).
  • 256-step (8-bit) linear programmable brightness per LED output varying from fully off (defau.

More Datasheets from NXP Semiconductors

Part Number Description
PCU9654 8-bit UFm 5MHz I2C-bus 100mA 40V LED driver
PCU9656 24-bit UFm 5MHz I2C-bus 100mA 40V LED driver
PCU9661 Parallel bus to 1 channel UFm I2C-bus controller
PCU9669 Parallel bus to 1 channel Fm+ and 2 channel UFm I2C-bus controller
PCU9955 16-channel UFm I2C-bus 57mA constant current LED driver