STLED325QTR

Overview

The STLED325QTR is a compact LED controller and driver manufactured by STMicroelectronics. It interfaces with microprocessors via a serial I2C interface to drive LED displays. The device is designed for driving LEDs connected in series or parallel configurations. It features an 8-segment, 5-digit display driver capability. The component is housed in a 32-pin VFQFN package with exposed copper pads, measuring 5x5 mm. It operates at an input voltage of 5 V and supports surface mount technology (SMD/SMT) installation.

Feature Summary

• Interfaces microprocessors to LED displays through a serial I2C interface
• Drives LEDs connected in series or parallel configurations
• Provides 8-segment, 5-digit display driver functionality

Applications

• LED display systems requiring microprocessor control
• Compact electronic devices utilizing serial communication for display management
• Applications involving series or parallel LED string driving

Procurement Notes

Verify the exact part number suffix and packaging configuration against official STMicroelectronics documentation before procurement. Confirm that the 32-QFN package with exposed pad matches your PCB footprint requirements. Ensure compatibility with the 5 V input voltage specification for your system design. Check for any specific ordering suffixes that may indicate different tape and reel quantities or environmental compliance levels. Validate that the I2C interface timing meets your microprocessor's specifications.

Selection Notes

Select this component when a dedicated LED driver with I2C interface is required for 8-segment, 5-digit displays. Consider the 32-QFN package size constraints and thermal dissipation needs due to the exposed pad design. Ensure the application environment supports the 5 V operating voltage. Evaluate if the internal current regulation capabilities meet the LED forward voltage and current requirements of the target display module. Verify that the serial communication protocol aligns with the host microcontroller.

Part Context

The STLED325QTR belongs to STMicroelectronics' portfolio of display drivers and power management integrated circuits. It is specifically engineered for applications requiring efficient control of multi-digit LED displays via simple serial interfaces. The device integrates necessary driver circuitry to simplify the design of display modules, reducing the component count compared to discrete solutions. It is part of a broader family of LED controllers designed for various display technologies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.