TM1803 Three-Channel LED Driver IC for Outdoor Display and Lighting Control

TM1803 Three-Channel LED Driver IC for Outdoor Display and Lighting Control

The TM1803 is a specialized three-channel LED driver IC designed for high-quality LED control applications. It integrates MCU digital interface, data latching, and high-voltage LED driving circuits in a single compact package. This IC offers independent brightness control and cascading functionality, making it ideal for outdoor full-color LED matrix displays. With robust performance and reliable quality, the TM1803 ensures seamless control of LED point light sources, LED strips, and other decorative lighting products.

Key Features of TM1803:

• High-Voltage CMOS Technology: Designed with a high-voltage power CMOS process for reliable performance and efficiency.
• 24V Output Voltage Tolerance: Output ports can withstand up to 24V, ensuring robust operation in diverse applications.
• Wide Input Voltage Range: Supports a working voltage range from 6V to 24V; requires VDD to be connected with a resistor when not using 5V supply, with a 5V regulator to GND.
• Adjustable Brightness: Features a 256-level brightness adjustment circuit with an equivalent 1024-level adjustment at low brightness, allowing for fine-tuned control of light output.
• Single-Wire Serial Cascading Interface: Simple data transmission with a single-wire serial interface for easy integration into large-scale systems.
• Built-in RC Oscillator: The chip uses an integrated RC oscillator that synchronizes with data signals, ensuring the signal remains distortion-free, even in cascaded configurations, with a data rate of up to 400Kbps.
• PWM Control: PWM control provides 256 levels of brightness adjustment, with a scan frequency of no less than 400Hz for smooth performance.
• Automatic Reset Function: The built-in power-on reset circuit ensures reliable startup behavior.
• Cascading Support: Supports cascading of over 512 points at a refresh rate of 30 frames per second, enabling large-scale installations.
• Packages Available: Available in SOP8 and DIP8 package options for flexible integration.

Applications:

The TM1803 is ideal for use in point light sources, guardrail tubes, light strips, and other decorative LED lighting systems. Its robust design and versatile features make it a perfect choice for outdoor advertising, stage lighting, and architectural lighting systems, as well as large-scale LED displays.

Why Choose TM1803 for Your LED Control Needs?

With its high reliability, excellent brightness control, and ease of cascading for large installations, the TM1803 is the optimal choice for LED control in both commercial and industrial applications. Whether you’re building a vibrant LED billboard, enhancing a lighting design, or creating a dynamic outdoor display, the TM1803 provides the flexibility and performance needed to deliver stunning visual effects.