TLC5947 24-Channel 12-Bit PWM LED Driver Module – Internal Oscillator 3-5.5V

TLC5947 24-Channel 12-Bit PWM LED Driver Module — Internal Oscillator, 3–5.5V, SPI Interface

The TLC5947 24-channel 12-bit PWM LED driver module is the professional solution for driving large LED arrays, RGB LED matrices, and multi-channel LED lighting systems from a microcontroller. Based on Texas Instruments’ TLC5947 IC, this module provides 24 independent PWM channels with 12-bit resolution (4096 brightness levels) per channel — delivering ultra-smooth, flicker-free dimming that 8-bit drivers simply cannot match.

With an internal oscillator, this module requires no external clock source — simplifying circuit design and reducing component count. The SPI-compatible serial interface allows daisy-chaining of multiple modules for systems requiring more than 24 channels, making it the scalable choice for large LED matrix and architectural lighting projects.

Key Features

• 24 independent PWM channels — drives 24 individual LEDs or 8 RGB LEDs independently
• 12-bit PWM resolution — 4096 brightness levels per channel; ultra-smooth, flicker-free dimming
• Internal oscillator — no external clock required; simplifies circuit design
• 3–5.5V supply voltage — compatible with 3.3V and 5V microcontrollers
• SPI-compatible serial interface — easy connection to Arduino, ESP32, STM32, and other microcontrollers
• Daisy-chainable — chain multiple modules for systems requiring more than 24 channels
• Constant current output — consistent LED brightness regardless of forward voltage variations

Typical Applications

• RGB LED matrix driving — full-color LED matrix displays and art installations
• Architectural LED lighting control — multi-channel independent LED zone control
• LED stage lighting — smooth, high-resolution dimming for theatrical and event lighting
• Arduino and microcontroller LED projects — expand GPIO with 24 PWM LED channels
• LED panel and signage control — multi-channel LED sign and display driving

Technical Specifications

• IC: Texas Instruments TLC5947
• Channels: 24
• PWM Resolution: 12-bit (4096 levels)
• Supply Voltage: 3–5.5V
• Interface: SPI-compatible serial
• Oscillator: Internal (no external clock required)
• Output Type: Constant current
• Brand: Keszoox
• Origin: Mainland China

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