LT3958EUHE#TRPBF

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LT3958EUHE#TRPBF

IC REG BOOST CUK ADJ 3.3A 36QFN

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規格

Part Status Active
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive or Negative
Topology Boost, Cuk, Flyback, SEPIC
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 5V
Voltage - Input (Max) 80V
Voltage - Output (Min/Fixed) 1.6V
Voltage - Output (Max) 84V (Switch)
Current - Output 3.3A (Switch)
Frequency - Switching 100kHz ~ 1MHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 36-WFQFN, 28 Leads, Exposed Pad
Supplier Device Package 36-QFN (5x6)
Base Product Number LT3958

概述

Description

The LT3958EUHE#TRPBF is a high-performance LED driver from Analog Devices (formerly Linear Technology). It is designed for applications requiring efficient LED driving, such as automotive lighting, industrial, and architectural lighting. The device features a wide input voltage range, typically from 4.5V to 60V, making it suitable for various power supply configurations.
Key features include a programmable output current, high switching frequency (up to 1MHz), and a built-in boost converter for maximizing efficiency. The LT3958 also incorporates features like multiple dimming options, including PWM and analog dimming, allowing for precise control over brightness levels. Its compact package and integrated protections—such as overvoltage and thermal shutdown—enhance reliability in demanding environments.
The device is ideal for designs requiring high efficiency and flexibility in LED applications, making it a popular choice among engineers looking to optimize power consumption and performance.

Features

The LT3958EUHE#TRPBF is a high voltage, constant current LED driver designed for automotive and industrial applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various power supply designs.
2. Constant Current Control: Provides accurate LED current regulation with minimal variation.
3. Up to 2A Output Current: Supports high-power LED applications.
4. Integrated Switching Regulator: Includes a built-in power switch, simplifying the design.
5. High Efficiency: Achieves efficiencies over 90%, reducing thermal management requirements.
6. Adjustable Frequency: Supports switching frequency up to 1MHz, allowing for compact designs.
7. Thermal Protection: Includes thermal shutdown to prevent damage in case of overheating.
8. PWM Dimming: Offers PWM dimming capability for enhanced control over LED brightness.
9. Soft-Start Feature: Minimizes inrush current during startup.
These features make the LT3958EUHE#TRPBF suitable for a variety of LED lighting applications where efficiency, reliability, and performance are critical.

Package

The LT3958EUHE#TRPBF is packaged in a 16-lead thermally enhanced HTSSOP (Thin Shrink Small Outline Package). This package type is designed for improved thermal performance and space efficiency in electronic circuits.

Pinout

The LT3958EUHE#TRPBF is a high-performance LED driver from Analog Devices, featuring a total of 20 pins. This device is designed for powering high-brightness LEDs and offers functions such as constant current control, adjustable dimming, and a wide input voltage range. Key features include a built-in switching regulator and the ability to drive multiple LED strings. The pin functions include input voltage (VIN), ground (GND), switching nodes, feedback (FB), and various control and dimming inputs.
For detailed pin assignments, please refer to the specific datasheet for the LT3958, which provides comprehensive information on each pin's function and electrical characteristics.

Manufacturer

The LT3958EUHE#TRPBF is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a multinational company specializing in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company targets various industries, including communications, automotive, healthcare, and industrial automation, providing solutions for signal processing, data conversion, and power management. ADI is recognized for its innovation in electronic components and systems, enabling advanced technologies in a wide range of applications.

Application

The LT3958EUHE#TRPBF is a high-voltage LED driver designed for applications such as automotive lighting, architectural lighting, and general illumination. It can efficiently drive high-power LEDs, enabling features like dimming and color tuning. Its versatility makes it suitable for industrial lighting and signage, as well as various outdoor lighting solutions. The device is also used in applications requiring high efficiency and reliability in LED performance.

Equivalent

The LT3958EUHE#TRPBF is a high-voltage LED driver from Analog Devices. Equivalent products include the MAX16834 from Maxim Integrated, the TPS92691 from Texas Instruments, and the ISL97634 from Renesas. When selecting an equivalent, ensure they meet specific requirements like voltage range, current control, and application needs. Always check datasheets for detailed specifications.

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