LT3958EUHE#TRPBF: A 60V, 2A Monolithic LED Driver with Advanced Control and Protection Features

Release date:2025-09-04 Number of clicks:160

**LT3958EUHE#TRPBF: A 60V, 2A Monolithic LED Driver with Advanced Control and Protection Features**

The demand for efficient, reliable, and high-performance LED drivers continues to grow across diverse applications, from automotive lighting and industrial illumination to large-scale display panels. Addressing this need, the **LT3958EUHE#TRPBF** from Analog Devices stands out as a premier monolithic solution, integrating a **high-power 60V, 2A switch** with a sophisticated control architecture. This driver is engineered to deliver exceptional performance while simplifying design complexity in demanding environments.

At its core, the LT3958 is a **current mode PWM controller**, which provides precise regulation of LED current—a critical factor for maintaining consistent brightness and longevity of LEDs. Its wide input voltage range (4.5V to 60V) makes it exceptionally versatile, capable of operating from a variety of sources, including automotive batteries, industrial power supplies, and 24V AC systems. The device can be configured in multiple topologies, including **boost, buck, buck-boost, SEPIC, and flyback** configurations, offering designers unparalleled flexibility to meet specific application requirements.

A key strength of the LT3958 lies in its **advanced protection and diagnostic features**. It incorporates accurate and adjustable average current limiting, ensuring the LED chain is protected from overcurrent conditions. The device also includes **open LED protection** and a programmable undervoltage lockout (UVLO) function, safeguarding both the driver and the load during fault scenarios. Furthermore, its integrated spread spectrum frequency modulation helps minimize electromagnetic interference (EMI), a significant advantage in noise-sensitive applications.

The **CTRL and PWM dimming pins** provide two highly effective methods for brightness control. The CTRL pin allows for analog dimming with a wide range, while the PWM pin accepts a digital signal for even deeper dimming ratios, achieving up to 3000:1. This capability is essential for applications requiring dynamic light adjustment without sacrificing stability or color quality.

Housed in a compact and thermally efficient **38-Lead TSSOP Exposed Pad package**, the LT3958EUHE#TRPBF is designed for robust operation. The exposed pad enhances thermal performance, allowing the device to dissipate heat effectively and maintain reliability even under high-load conditions. Its monolithic construction reduces the external component count, saving valuable board space and streamlining the manufacturing process.

**ICGOODFIND**: The LT3958EUHE#TRPBF is a top-tier monolithic LED driver that masterfully combines high power (60V, 2A) with exceptional design flexibility and robust protection. Its ability to support multiple converter topologies, coupled with advanced dimming and comprehensive fault protection, makes it an outstanding choice for engineers developing next-generation lighting systems across automotive, industrial, and architectural applications.

**Keywords**: LED Driver, Monolithic IC, PWM Dimming, Overcurrent Protection, Buck-Boost Converter.

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