LED2472GQTR

Overview

The LED2472GQTR is a monolithic, low-voltage linear LED driver IC manufactured by STMicroelectronics. It features 24 constant-current output channels organized into three groups of eight independently controlled channels for Red, Green, and Blue applications. The device supports an output voltage of up to 19V and delivers a channel current ranging from 4mA to 72mA. It operates on a supply voltage between 3V and 5.5V with a maximum clock frequency of 30MHz. The component is housed in a 40-MLPQ-EP (5x5) surface-mount package.

Feature Summary

• Integrates 24-bit shift register architecture with serial interface control for data transmission.
• Includes built-in error detection circuits capable of identifying open channels and shorted LEDs.
• Features programmable current gain adjustment across two ranges with 6-bit resolution per color.
• Provides thermal management through overtemperature flagging and automatic output thermal shutdown.

Applications

• Indoor and outdoor LED screen billboards
• Large-area display panels
• Full-color board panels requiring high RGB resolution

Procurement Notes

Verify the specific suffix GQTR against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm RoHS3 compliance status as regulatory standards may evolve. Check for any Product Change Notifications (PCNs) or End-of-Life (EOL) notices prior to finalizing procurement plans to ensure long-term supply stability.

Selection Notes

Select this component when designing systems requiring independent current regulation for RGB LED matrices. Ensure the host microcontroller supports the required serial interface protocols and clock speeds up to 30MHz. Verify that the system power supply remains within the 3V to 5.5V range and that thermal dissipation capabilities accommodate the linear topology under maximum load conditions.

Part Context

This part belongs to the LED2472 family of constant-current sink drivers designed for high-density LED displays. It serves as a specialized power management integrated circuit (PMIC) within the broader STMicroelectronics portfolio, targeting applications where precise color balance and diagnostic feedback are critical for display quality and maintenance efficiency.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official STMicroelectronics resources for potential cross-references or updated series replacements if this component becomes obsolete.

FAQ

How does the LED2472GQTR handle LED failure detection?

The device includes a dedicated error detection circuit that monitors output lines for three specific conditions: short to ground, short to the LED power supply rail, and open channels.

What is the method for adjusting the LED output current?

The LED current is regulated via a single external resistor and can be adjusted within two sub-ranges using a 7-bit global current gain setting, providing 64 steps of resolution per color.