LT3745IUJ#TRPBF

$6.89

Description：IC LED DRVR CTRLR PWM 75MA 40QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:5163f2f6db5f Category: LED Drivers IC Brand: Analog Devices Inc.

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Product introduction

LT3745IUJ#TRPBF is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC LED DRVR CTRLR PWM 75MA 40QFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LT3745IUJ#TRPBF

Description：IC LED DRVR CTRLR PWM 75MA 40QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Type：DC DC Controller
Topology：Step-Down (Buck)
Internal Switch(s)：No
Number of Outputs：16
Voltage - Supply (Min)：6V
Voltage - Supply (Max)：55V
Voltage - Output：36V
Current - Output / Channel：75mA
Frequency：200kHz ~ 1MHz
Dimming：PWM
Applications：Backlight, Signage
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：40-WFQFN Exposed Pad
Supplier Device Package：40-QFN (6x6)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LT3745IUJ#TRPBF

LT3745IUJ#TRPBF

LED Driver IC Overview

The LT3745IUJ#TRPBF is a monolithic LED driver controller designed for high-power applications. It features a buck topology with sixteen independent current-regulated outputs, each capable of delivering up to 75mA. The device operates within an input voltage range of 6V to 55V and supports switching frequencies between 200kHz and 1MHz. It utilizes PWM dimming for brightness control and functions within a junction temperature range of -40°C to 125°C. The component is housed in a 40-pin QFN (6x6mm) package.

LED Driver IC Feature Summary

Integrates sixteen independent constant-current channels for multi-LED arrays
Supports external PWM dimming signals for precise brightness adjustment
Features adjustable switching frequency from 200kHz to 1MHz
Includes internal soft-start and protection mechanisms

LED Driver IC Applications

High-power LED backlighting systems
Commercial signage and display lighting
Industrial LED illumination arrays
Automotive exterior lighting modules

LED Driver IC Procurement Notes

Verify the specific suffix (#TRPBF indicates tape and reel packaging) against the original manufacturer datasheet to ensure compatibility with automated assembly processes. Confirm that the 40-QFN package dimensions match the PCB footprint requirements. Check for any recent Product Change Notices regarding manufacturing site or material composition updates prior to finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when designing circuits requiring multiple independently controlled LED channels from a single controller. Ensure the external power MOSFETs and inductors are rated for the maximum expected output current and input voltage conditions. Verify that the thermal design can handle the power dissipation associated with the 16-channel operation at the selected duty cycle and switching frequency.

LED Driver IC Part Context

This part belongs to the LT3745 family of LED drivers from Analog Devices. It is specifically engineered for driving large LED arrays where individual channel control is necessary. The device complements other DC-DC controllers by providing specialized functionality tailored for high-density LED lighting solutions rather than general-purpose power regulation.