IS31FL3246A-QFLS4-TR

$2.07

Description：36-CHANNEL LED DRIVER
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:7a64da7c9599 Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：36-CHANNEL LED DRIVER
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：Constant Current
Internal Switch(s)：No
Number of Outputs：36
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：25.3mA
Frequency：-
Dimming：I2C, PWM, SPI
Applications：General Purpose
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：44-PowerWFQFN
Supplier Device Package：44-QFN (5x5)
Grade：-
Qualification：-

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IS31FL3246A-QFLS4-TR

Overview

The IS31FL3246A-QFLS4-TR is a 36-channel LED lighting driver IC manufactured by Lumissil Microsystems. It features constant current outputs with a channel current of 25.3 mA and supports PWM dimming frequencies ranging from 127 Hz to 504 Hz. The device operates on a supply voltage between 2.7 V and 5.5 V, with a maximum power consumption of 3.5 mA. It is housed in a QFN-44 package (5.0mm x 5.0mm) and functions within a temperature range of -40°C to +125°C.

Feature Summary

Provides 36 independent constant current channels for precise LED control
Supports PWM dimming for smooth brightness adjustment and color mixing
Integrated EMI noise reduction technology for improved signal integrity

Applications

General LED lighting applications
Color-mixing control systems
Smooth LED brightness control interfaces

Procurement Notes

Verify the specific suffix QFLS4 against the manufacturer's latest datasheet to ensure compatibility with automotive or industrial qualification requirements. Confirm that the QFN-44 footprint matches the target PCB layout. Check for any Product Change Notifications (PCN) regarding lead frame suppliers or assembly sources before finalizing procurement orders.

Selection Notes

Select this component when a high-density solution with 36 channels is required for linear LED drivers. Ensure the design accommodates the 5.0mm x 5.0mm QFN-44 package dimensions. Verify that the system voltage remains within the 2.7V to 5.5V operating range and that thermal management supports the specified junction temperature limits.

Part Context

This part belongs to the IS31FL3x series of industrial FXLED drivers from Lumissil Microsystems. The series is characterized by wide LED support ranges and integrated EMI noise reduction technologies. The IS31FL3246A variant specifically targets applications requiring multiple constant current outputs with PWM control capabilities.