IS31FL3746A-QFLS4-TR

$2.41

Description：IC LED DRVR LIN PWM 34.5MA 32QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:f393770a6628 Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR LIN PWM 34.5MA 32QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：-
Internal Switch(s)：No
Number of Outputs：4
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：34.5mA
Frequency：29kHz
Dimming：PWM
Applications：General Purpose
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：32-WFQFN Exposed Pad
Supplier Device Package：32-QFN (4x4)
Grade：-
Qualification：-

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IS31FL3746A-QFLS4-TR

Overview

The IS31FL3746A-QFLS4-TR is a matrix LED driver IC manufactured by Lumissil Microsystems. It features four output channels with a constant current of 34.5 mA per channel. The device operates on a supply voltage range of 2.7 V to 5.5 V and supports PWM dimming. It is housed in a 32-pin QFN (4x4 mm) package with an exposed pad. The component is rated for an operating temperature range of -40°C to +125°C.

Feature Summary

Supports PWM dimming control for LED brightness adjustment
Includes open LED protection functionality
Provides linear constant current regulation

Applications

Matrix LED display panels
Segmented LED indicators
General-purpose LED lighting systems

Procurement Notes

Verify the specific suffix QFLS4-TR against official Lumissil documentation to confirm packaging and tape specifications. Ensure the procurement source provides valid RoHS compliance data and moisture sensitivity level information consistent with the datasheet. Confirm that the supplier is an authorized distributor to guarantee component authenticity and traceability.

Selection Notes

Select this component when a low-channel count matrix driver is required. The 34.5 mA output current suits standard indicator LEDs. The wide operating temperature range allows use in automotive or industrial environments. Verify that the 32-QFN footprint fits the PCB layout constraints before finalizing the design.

Part Context

This part belongs to the IS31FL3746A series of LED drivers from Lumissil Microsystems. It is designed for applications requiring precise current control and dimming capabilities. The series includes evaluation boards such as the IS31FL3746A-QFLS4-EB for development purposes.