LM3405AXMK/NOPB

$0.63

Description：IC LED DRV RGLTR PWM 1A TSOT23-6
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1acdb61b6a64 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR PWM 1A TSOT23-6
Series：-
Mfr：Texas Instruments
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)：3V
Voltage - Supply (Max)：22V
Voltage - Output：-
Current - Output / Channel：1A
Frequency：1.6MHz
Dimming：PWM
Applications：Lighting
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：SOT-23-6 Thin, TSOT-23-6
Supplier Device Package：TSOT-23-6
Grade：-
Qualification：-

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LM3405AXMK/NOPB

Overview

The LM3405AXMK/NOPB is a constant-current buck LED driver IC from Texas Instruments, designed for high-power LED applications. It operates with an input voltage range of 3V to 22V and delivers a regulated output current of 1A. The device features an integrated power switch and supports PWM dimming for brightness control. Operating at a fixed switching frequency of 1.6MHz, it utilizes a TSOT-23-6 package. The component functions within a temperature range of -40°C to +125°C and includes thermal shutdown protection.

Feature Summary

Integrates a high-side N-channel power switch for compact design
Supports external PWM dimming for precise brightness control
Includes thermal shutdown protection for enhanced reliability

Applications

High-power high-brightness LED lighting systems
Automotive exterior and interior illumination
Portable battery-powered LED drivers

Procurement Notes

Verify the specific suffix 'XMK' corresponds to the TSOT-23-6 package variant when sourcing. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the ordering part number matches the required tape-and-reel quantity specifications. Cross-reference the datasheet revision date to validate parameter accuracy against current production standards.

Selection Notes

Select this component for designs requiring a single-channel constant current source with integrated switching capability. The 1.6MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the TSOT-23-6 package constraints for thermal management in high-current applications. Verify input voltage compatibility with the 3V to 22V operating range for the target power supply.

Part Context

This device belongs to the LM3405A series of LED lighting driver ICs. It serves as a specialized solution for driving high-power LEDs from various DC sources. The series is characterized by its simplicity and robust protection features, targeting efficient light emission in constrained spaces.