IS31BL3228A-UTLS2-TR

$0.23

Description：IC LED DRV RGLTR NO 20MA 12UTQFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR)

SKU:a8c6d340bf75 Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR NO 20MA 12UTQFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR)
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：No
Number of Outputs：4
Voltage - Supply (Min)：2.8V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：20mA
Frequency：1MHz
Dimming：No
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：12-UFQFN
Supplier Device Package：12-UTQFN (2x2)
Grade：-
Qualification：-

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IS31BL3228A-UTLS2-TR

Overview

The IS31BL3228A-UTLS2-TR is a DC-DC regulator LED driver IC manufactured by Lumissil Microsystems. It features a step-up (boost) topology with four independent output channels, each capable of delivering up to 20mA. The device operates within a supply voltage range of 2.35V to 5.5V and supports an operating temperature range from -40°C to 85°C. Packaged in a compact 12-UTQFN (2x2mm) surface-mount format, it utilizes external resistors for current configuration without requiring a microcontroller.

Feature Summary

Integrates a boost converter topology for efficient white LED backlighting applications
Provides four independent output channels with configurable current settings via external resistors
Operates without a microcontroller interface, simplifying system architecture

Applications

LCD backlight driving for portable electronic devices
White LED illumination in consumer electronics
Compact battery-powered display systems

Procurement Notes

Verify the specific suffix UTLS2 corresponds to the industrial temperature grade (-40°C to 85°C) and the 12-pin UTQFN package variant. Confirm that the TR designation indicates tape-and-reel packaging suitable for automated assembly processes. Ensure compatibility with the target application's voltage requirements and current configuration needs before finalizing procurement.

Selection Notes

Select this component when designing systems requiring simple, microcontroller-free LED backlight control with multiple channels. It is suitable for applications where space constraints favor the small 2x2mm footprint. Consider the 20mA per channel limit and the need for external current-setting resistors when evaluating circuit complexity and power efficiency requirements for the target product.

Part Context

This part belongs to Lumissil's BL series of white LED drivers specifically engineered for LCD backlighting. The IS31BL3228A variant distinguishes itself through its four-channel capability and integrated boost regulation. It complements the manufacturer's portfolio of power management solutions aimed at reducing system overhead and component count in modern electronic displays.