IS31FL3737-QFLS4-TR

$2.71

Description：IC LED DRVR LINEAR 45MA 40QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:96ee63c11854 Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR LINEAR 45MA 40QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：-
Internal Switch(s)：Yes
Number of Outputs：24
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：45mA
Frequency：-
Dimming：I2C
Applications：-
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：40-WFQFN Exposed Pad
Supplier Device Package：40-QFN (5x5)
Grade：-
Qualification：-

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IS31FL3737-QFLS4-TR

Overview

The IS31FL3737-QFLS4-TR is a linear LED driver IC designed for matrix display applications. It features 12 constant current outputs with a channel current of 45mA, operating within a supply voltage range of 2.7V to 5.5V. The device supports I2C interface at 1MHz frequency and PWM dimming. Packaged in a 40-WFQFN (5x5mm) exposed pad surface-mount package, it operates across an extended temperature range of -40°C to +125°C.

Feature Summary

Configurable 12x12 dot matrix LED driving capability
Integrated I2C interface for digital control and data transmission
Linear topology with no internal switching components

Applications

Dot matrix LED displays
Industrial indicator panels
Consumer electronics status displays

Procurement Notes

Verify the specific suffix QFLS4-TR against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the 40-WFQFN thermal pad soldering process aligns with PCB assembly guidelines for this package type. Confirm RoHS compliance status if required by your regional regulations.

Selection Notes

Select this component when a compact solution for small matrix displays is needed without external switching inductors. The linear architecture simplifies PCB layout compared to boost converters. Verify that the 45mA per channel output current meets the forward current requirements of the selected LEDs. Consider the 5x5mm footprint constraints during mechanical design.

Part Context

This part belongs to the IS31FL37xx series of LED lighting drivers from Lumissil Microsystems. These devices are engineered for general-purpose LED matrix applications requiring precise current control and digital interface integration. The series emphasizes EMI noise reduction and flexible configuration options for various display densities.

Replacement Considerations

Check for IS31FL3737A-QFLS4-TR or IS31FL3737B-QFLS4-TR as potential variants within the same family. Verify functional compatibility regarding pin assignments and register maps before substitution. Consult official change notifications for any revisions affecting electrical parameters or packaging.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.