PCA9685PW

16通道， 12位PWM调频+ I2C总线LED控制器 16-channel, 12-bit PWM Fm+ I2C-bus LED controller

The is an I²C-bus controlled 16-channel LED controller optimized for LCD RGBA colour backlighting applications. Each LED output has its own 12-bit resolution 4096 steps fixed frequency individual PWM controller that operates at a programmable frequency from a typical of 40 Hz to 1000 Hz with a duty cycle that is adjustable from 0 % to 100 % to allow the LED to be set to a specific brightness value. All outputs are set to the same PWM frequency.

.

Programmable LED brightness

.

Programmable LED turn-on time to help reduce EMI

.

25 MHz typical internal oscillator requires no external components

.

Internal power-on reset

.

Noise filter on SDA/SCL inputs

.

Edge rate control on outputs

.

No output glitches on power-up

.

Supports hot insertion

.

Low standby current