IS31FL3731-QFLS2-TR

$2.07

Description：IC LED DRV LIN ANALOG 34MA 28QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:bbfa3787d867 Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRV LIN ANALOG 34MA 28QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：-
Internal Switch(s)：-
Number of Outputs：18
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：34mA
Frequency：-
Dimming：Analog
Applications：-
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：28-WFQFN Exposed Pad
Supplier Device Package：28-QFN (4x4)
Grade：-
Qualification：-

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IS31FL3731-QFLS2-TR

Overview

The IS31FL3731-QFLS2-TR is a linear LED driver IC manufactured by Lumissil Microsystems, designed for driving up to 144 single LEDs or matrix configurations. It features 18 output channels with a maximum current of 34mA per channel. The device supports analog dimming and operates within a supply voltage range of 2.7V to 5.5V. It is housed in a 28-WFQFN package with an exposed pad (4mm x 4mm) and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

Supports direct drive for up to 144 individual LEDs via 18 independent output channels
Integrates analog dimming control for brightness adjustment without external microcontroller intervention
Utilizes a compact surface-mount QFN package suitable for space-constrained designs

Applications

LED matrix displays requiring low pixel counts
Compact indicator lighting systems
Battery-powered devices with limited power budgets

Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND) before finalizing any long-term production plans. Confirm that the 28-QFN package dimensions align with your PCB footprint requirements. Ensure the analog dimming interface matches your system's control architecture, as digital interfaces are not supported by this specific part number.

Selection Notes

Select this component when a simple, cost-effective solution for small-scale LED arrays is required. It is appropriate for applications where analog control signals are available and high-channel count drivers are unnecessary. Consider thermal management capabilities given the linear regulation nature of the driver and the specified 34mA output limit per channel.

Part Context

This part belongs to the IS31FL3731 series of LED drivers from Lumissil Microsystems. It is distinct from higher-channel variants like the IS31FL3732, which offers 16 outputs in a different package configuration. The series focuses on providing efficient linear drive solutions for consumer and industrial lighting applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Lumissil Microsystems directly for qualified alternatives or pin-compatible upgrades.

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.