PT4115

$0.57

Description：IC LED DRVR BUCK PWM 1.2A SOT89-
Series：-
Mfr：UMW
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:df09c8a08acc Category: LED Drivers IC Brand: UMW

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR BUCK PWM 1.2A SOT89-
Series：-
Mfr：UMW
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Down (Buck)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：6V
Voltage - Supply (Max)：30V
Voltage - Output：45V
Current - Output / Channel：1.2A
Frequency：1MHz
Dimming：PWM
Applications：Backlight, Lighting
Operating Temperature：-40°C ~ 85°C
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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PT4115

Overview

The UMW PT4115 is a step-down constant current source operating in continuous inductor current conduction mode, designed to drive one or more series-connected LEDs. It features an input voltage range of 6V to 30V and supports adjustable output currents up to 1.2A. The device integrates an internal power switch and utilizes high-side current sensing for LED average current regulation. A switching frequency of 1MHz is specified. The component is housed in a SOT-89-5 package with an exposed pad for thermal management.

Feature Summary

Integrates internal power switch for reduced external component count
Supports both analog dimming and wide-range PWM dimming via DIM pin
Operates in deep standby mode when DIM voltage falls below 0.3V

Applications

LED backlighting systems
General LED lighting applications
Automotive lamp drivers

Procurement Notes

Verify the specific manufacturer marking against official UMW documentation to ensure authenticity. Confirm that the received component matches the SOT-89-5 package outline and pin configuration. Check datasheet revisions for any updates regarding electrical characteristics or thermal performance specifications prior to final integration.

Selection Notes

Select this component for designs requiring a compact, single-inductor solution for driving series LED strings within a 6V to 30V input window. Ensure the external current-sensing resistor is calculated correctly to limit peak current to 1.2A. Consider thermal dissipation requirements due to the integrated switch and SOT-89-5 package constraints under maximum load conditions.

Part Context

The PT4115 belongs to the category of DC-DC regulators classified as LED drivers. It functions as a buck converter topology optimized for constant current output rather than fixed voltage regulation. This classification distinguishes it from general-purpose power management ICs by focusing on precise current control for optoelectronic loads.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit layouts if considering alternative manufacturers, as pinouts and thermal pad configurations may differ significantly between suppliers.

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

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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.