IS31LT3178-STLS4-TR

$0.79

Description：IC LED DRIVER LIN DIM
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a82bf4912cbf Category: LED Drivers IC Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRIVER LIN DIM
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：-
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：2.6V
Voltage - Supply (Max)：40V
Voltage - Output：40V
Current - Output / Channel：150mA
Frequency：1kHz
Dimming：PWM
Applications：Lighting
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-6
Supplier Device Package：SOT-23-6
Grade：-
Qualification：-

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IS31LT3178-STLS4-TR

Overview

The IS31LT3178-STLS4-TR is a single-output linear LED driver IC from Lumissil Microsystems, designed for constant current regulation. It delivers an output current of 150mA and supports PWM dimming control. The device operates within a supply voltage range of 2.5V to 5.5V and features an internal switch. Packaged in a compact SOT-23-6 surface-mount format, it is rated for an operating temperature range of -40°C to 125°C (TA).

Feature Summary

Linear topology with integrated power MOSFET for simplified design.
Supports PWM dimming for brightness control.
Compact SOT-23-6 package suitable for space-constrained applications.

Applications

General lighting systems
Indicator circuits
Low-power LED arrays

Procurement Notes

Verify the specific suffix STLS4-TR against the manufacturer's latest datasheet to confirm pinout and thermal characteristics. Confirm RoHS compliance status and check for any recent Product Change Notifications (PCN) that may affect material composition or manufacturing location before finalizing procurement plans.

Selection Notes

Select this component when a single-channel, low-current LED drive solution is required with PWM dimming capability. The SOT-23-6 package is ideal for small form-factor designs. Ensure the input voltage remains within the 2.5V to 5.5V range and that the load current does not exceed the 150mA rating for reliable operation.

Part Context

This part belongs to the IS31LT31xx series of linear LED drivers from Lumissil Microsystems. These devices are engineered for general lighting and signaling applications, offering high reliability and built-in protections. The series provides various current options and packaging styles to accommodate diverse design requirements in commercial and industrial markets.

Replacement Considerations

The IS31LT3171-STLS4-TR is listed as a manufacturer-recommended substitute. Verify compatibility regarding current ratings and pin configurations before substitution.