IS31FL3206-QFLS4-TR

Overview

The IS31FL3206-QFLS4-TR is a 12-channel LED driver IC manufactured by Lumissil Microsystems. It features linear PWM dimming with an output current of 38 mA per channel. The device operates on a 2.7 V to 5.5 V supply voltage and utilizes I2C control for configuration. It employs a boost topology and supports a switching frequency of 24 kHz. The component is housed in a 20-WFQFN package measuring 3.0 mm x 3.0 mm. It functions within a temperature range of -40°C to +125°C and has a maximum supply current of 6.5 mA.

Feature Summary

• Provides independent PWM control for each of the twelve output channels.
• Integrates internal boost circuitry for efficient LED driving.
• Supports precise current scaling via I2C interface communication.

Applications

• General-purpose LED lighting applications
• Backlighting systems requiring constant current drive
• Embedded lighting control modules

Procurement Notes

Verify that the specific suffix QFLS4 corresponds to the required tape and reel packaging format, as variations exist within the product family. Confirm that the operating environment remains within the specified -40°C to +125°C thermal limits. Ensure the host system provides a stable 2.7 V to 5.5 V power rail compatible with the device's electrical characteristics. Check for moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component when a compact solution with twelve individually addressable channels is required. The 20-QFN package offers a small footprint suitable for space-constrained designs. Consider the 38 mA output capability against the forward current requirements of the target LEDs. The I2C interface simplifies control logic compared to parallel or serial data line alternatives.

Part Context

This part belongs to the IS31FL3x series of industrial FxLED drivers from Lumissil. These drivers are designed to support a wide range of LED configurations while incorporating EMI noise reduction technology. The series targets applications demanding high reliability and precise brightness control across multiple channels.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-reference with other 12-channel linear PWM LED drivers if alternative sourcing is necessary.

FAQ

What is the maximum output current per channel?

The maximum output current is 38 mA per channel.

Does the device include internal switches?

Yes, the datasheet indicates the presence of internal switches.