IS31FL3740-QFSL4-TR

Overview

The IS31FL3740-QFSL4-TR is a general-purpose LED matrix driver manufactured by Lumissil Microsystems. It supports a 3x4 dot matrix configuration with a 1/12 cycle rate. The device operates on an I2C compatible interface for programming and control. Electrical specifications include a supply voltage range of 2.7V to 5.5V and a maximum power consumption of 2.17 mA. It features surface mount installation in a TSSOP-20 package, suitable for temperatures between -40°C and +125°C.

Feature Summary

• Supports 3x4 dot matrix LED configurations
• Programmable via I2C compatible interface
• Operates within wide temperature ranges

Applications

• Dot matrix display systems
• General purpose LED indicators
• Embedded lighting control modules

Procurement Notes

Verify the specific suffix against official Lumissil documentation to confirm pinout and electrical characteristics. Ensure the procurement channel provides valid RoHS compliance certificates. Confirm the package type matches the design requirements before ordering. Check for lifecycle status updates as some variants may be marked as not recommended for new designs.

Selection Notes

Select this component for applications requiring simple I2C controlled LED matrices. Consider the 2.7V to 5.5V operating range for compatibility with system power rails. Evaluate the thermal performance within the specified -40°C to +125°C ambient range. Verify that the 3x4 matrix size meets the visual output requirements of the target application.

Part Context

This part belongs to the IS31FL3740 series of LED drivers from Lumissil Microsystems. The series focuses on low-pin-count solutions for small matrix displays. The QFN or TSSOP packaging options provide flexibility for space-constrained PCB layouts. The family emphasizes ease of integration through standard digital interfaces.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.