For all of you out there who want to control 24 channels of PWM, we salute you! We also would like you to check out this breakout board for the TLC5947 PWM driver chip. This chip can control 24 separate channels of 12-bit PWM output. Designed (and ideal) for LED control, this board is not good for driving servos. If you need to drive servos, we have a controller for that over here.

Only three "SPI" pins are required to send data (our Arduino library shows how to to use any digital microcontroller pins). Best of all, the design is completely chainable. As long as there's enough power for all the boards you can chain as many as you'd like, like a little trail of blue PCBs stretching out into the sunset. Each of the 24 output's is constant-current and open drain. You can drive multiple LEDs in series, with a V+ anode supply of up to 30V. If you want to drive something that requires a digital input, you must use a pullup resistor from the drive pin to your logic level to create the full waveform.

One resistor is used to set the current for each of the outputs, the constant current means that the LED brightness doesn't vary if the power supply dips. We use a 3.3K resistor for about 15mA but you can solder a thru-hole resistor over it if you'd like to change that value. Check the TLC5947 datasheet for details on resistor-to-current values.

We include a few extras to make this board easy to use: a durable 5V low-dropout regulator (with reverse polarity protection in case y'know, you plug it in backwards), a green power-good LED, four mounting holes and a current-set resistor. A bit of 0.1" header is also included so you can solder it on and plug into a breadboard.

To use: Power V+ with 5-30VDC, and connect ground to the common ground. Then send 3-5V logic SPI data on DIN (data in), CLK (clock) and LAT (latch). If you'd like to quickly turn off all the outputs, raise the OE pin - it's pulled low to enable the PWM outputs.Our Arduino library will get you started with blinking LEDs, install it and run the example code with the noted pin configuration.

Technical Details

Revision History:

  • As of Dec 22, 2023 – We've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen.

Specifications:

  • Dimensions: 25.39mm / 0.9" x 51.1mm / 2" x 4mm / 0.1"

Documentations:

Package Includes:

  • 1 x Adafruit 1429 24-Channel 12-bit PWM LED Driver - SPI Interface - TLC5947

Write a review

Please login or register to review

Adafruit 1429 24-Channel 12-bit PWM LED Driver - SPI Interface - TLC5947

  • Brand: Adafruit
  • Product Code:NR-Ada-1429-24-Channel
  • Reward Points:17
  • Availability:In Stock
  • रo 1,614.00

  • Price in reward points:1702

  • 45 or more रo 1,413.00
  • 96 or more रo 1,407.00

Related Products

Adafruit 815 16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685

Adafruit 815 16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685

Adafruit 16-Channel 12-bit PWM/Servo Driver You want to make a cool robot, maybe a hexapod wal..

रo 1,614.00

Adafruit 1411 16-Channel 12-bit PWM/Servo Shield - I2C interface

Adafruit 1411 16-Channel 12-bit PWM/Servo Shield - I2C interface

You want to make a cool Arduino robot, maybe a hexapod walker, or maybe just a piece of art with a l..

रo 1,889.00

Adafruit 4886 AW9523 GPIO Expander and LED Driver Breakout - STEMMA QT / Qwiic

Adafruit 4886 AW9523 GPIO Expander and LED Driver Breakout - STEMMA QT / Qwiic

Expand your project possibilities, with the Adafruit AW9523 GPIO Expander and LED Driver Breakout - ..

रo 534.00

Adafruit 4918 TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / Qwiic

Adafruit 4918 TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / Qwiic

It's a GPIO expander, it's a keypad matrix driver... its the Adafruit TCA8418 Keypad Matrix and GPIO..

रo 642.00

Adafruit 1455 12-Channel 16-bit PWM LED Driver - SPI Interface - TLC59711

Adafruit 1455 12-Channel 16-bit PWM LED Driver - SPI Interface - TLC59711

For all of you out there who want to control 12 channels of PWM, we salute you! We also would like y..

रo 809.00

Tags: Adafruit, PWM, LED Driver, SPI Interface

The product is currently Out-of-Stock. Enter your email address below and we will notify you as soon as the product is available.

Name
Email
Phone
Comments