TITLC5947DAPR

Overview

The TLC5947DAPR is a 24-channel constant-current sink LED driver featuring integrated 12-bit PWM grayscale control for each output. It operates over a 3V to 5.5V range and supports up to 30V on the output pins, making it suitable for driving long LED strings or high-voltage displays.

Why Choose This Part

The device features 24 independent channels which reduces component count in high-density designs compared to standard 8 or 16-channel drivers. It includes a grouped delay mechanism to minimize inrush current and noise during switching, plus a 4MHz data transfer rate to support high refresh rates.

Applications

Getting Started

Engineers should begin by providing a single external resistor to set the maximum current for all 24 channels. Use the 3-wire serial interface (SCLK, SIN, XLAT) to shift in the 288 bits of grayscale data, and ensure the thermal pad of the 32-HTSSOP package is soldered to a large ground plane for heat dissipation.

TLC5947 Family

Also Consider

PCA9685 NXP Semiconductors - An I2C-controlled 16-channel PWM driver that is easier to interface with standard microcontrollers without using high-speed shift registers.

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