Description

The TLC5940RHBR is an 16-channel, constant-current sink LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and 64-step programmable current dot correction (DC) functionality. It offers a wide range of operating voltage, from 3V to 5.5V, which makes it suitable for a broad range of applications. Other features include a built-in power on reset circuit, a thermal shutdown function, and an output error detection circuit. It is housed in a compact and easy-to-use package that is compatible with both the SPI and I2C serial communication protocols.

Specifications and Features

• 16-channel constant-current sink LED driver
• 4096-step grayscale PWM brightness control per channel
• 64-step programmable current dot correction (DC) functionality per channel
• Operating voltage range: 3V to 5.5V
• Built-in power on reset circuit
• Thermal shutdown function
• Output error detection circuit
• Compatible with both SPI and I2C serial communication protocols

Application Scenarios

The TLC5940RHBR LED driver is used in a variety of applications, including:

• LED video displays
• Automotive and aviation lighting
• Backlighting for LCD panels
• Architectural lighting

Comparison

• 16 individually adjustable channels with 4096-step grayscale PWM brightness control
• Wide operating voltage range of 3V to 5.5V
• Built-in power on reset circuit and thermal shutdown function for added safety
• Compatible with both SPI and I2C serial communication protocols

• The 64-step programmable current dot correction (DC) functionality per channel may not be sufficient for some applications
• May not be optimal for applications requiring a high number of channels (>16)