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    Overview

    The TPS92512HVDGQR is a high-voltage, synchronous buck LED driver from Texas Instruments, designed for high-efficiency, high-reliability constant-current LED drive applications. The device supports a wide input voltage range of 4.5V–65V and can provide up to 2A of accurate drive current for single or multiple strings of high-brightness LEDs. The TPS92512HV uses a synchronous architecture with built-in high- and low-side MOSFETs to improve efficiency and is widely used in industrial lighting, automotive lighting, landscape lighting, and commercial lighting systems.

    Specifications

    parameter

    Numeric

    Input voltage range

    4.5V to 65V

    Output Current

    Up to 2A (adjustable)

    Switching frequency

    100kHz to 2.5MHz (adjustable)

    efficiency

    Up to 95%

    Dimming method

    Analog dimming / PWM dimming

    LED open circuit protection

    support

    Short circuit and overcurrent protection

    support

    Thermal shutdown protection

    support

    Package Type

    20-pin HTSSOP (DGQ package)

    Operating temperature range

    -40°C to +125°C (Industrial)

     

    Key features of TPS92512HVDGQR

    • Wide input voltage range (4.5V–65V)

      • Supports multiple power inputs, such as automotive 12V/24V systems, battery power, and industrial power rails , providing high adaptability and ensuring system stability.

    • Up to 2A output drive capability

      • Provides constant current drive to ensure stable operation of high-brightness LEDs, suitable for medium and high power LED lamps .

    • High Efficiency Synchronous Buck Architecture

      • Built-in high-side and low-side MOSFETs optimize conversion efficiency up to 95% , reducing power consumption and heat loss.

    • Flexible dimming function

      • Supports analog dimming (current adjustment through IADJ pin voltage) and PWM dimming (adapting to dynamic brightness adjustment applications) to meet the needs of different lighting scenarios.

    • Adjustable switching frequency (100kHz–2.5MHz)

      • The user can adjust the switching frequency based on system requirements, trading off efficiency, EMI and external component size .

    • Multiple protection mechanisms

      • Built-in LED open circuit protection, short circuit protection, over-current protection and thermal shutdown protection enhance the safety and reliability of the system and ensure long-term stable operation.

    • Compact package suitable for high-density designs

      • It adopts 20-pin HTSSOP (DGQ package) to facilitate heat dissipation and high-density PCB design.

    Application Areas

    With its high voltage, high precision and strong protection functions, TPS92512HVDGQR is widely used in the following scenarios:

    • Industrial Lighting

      • High brightness LED lighting systems for factories, warehouses, tunnels, etc., ensuring long life and high reliability.

    • Automotive lighting

      • High-efficiency LED lighting for headlights, daytime running lights (DRL), taillights, etc., meets automotive electronic standards.

    • Outdoor and Landscape Lighting

      • Used in waterproof lamps, garden lighting, billboards and other scenes that require wide voltage adaptability.

    • Commercial and Architectural Lighting

      • Indoor downlights, track lights, and panel lights can achieve precise dimming and high brightness output.

    • LED display and backlight

      • Provides high-precision constant current drive, suitable for LED screens and display backlight modules.

    Advantages comparison analysis

    Features/Specifications

    TPS92512HVDGQR

    Ordinary LED Driver

    Input voltage range

    4.5V–65V

    5V–40V

    Output Current

    Up to 2A

    1A–1.5A

    efficiency

    Up to 95%

    80%–90%

    Dimming function

    Analog + PWM dimming

    Usually only supports PWM

    Switching frequency

    100kHz–2.5MHz adjustable

    Fixed frequency or narrow adjustable range

    Protection function

    Open circuit, short circuit, over current, over temperature

    Basic overcurrent/overtemperature protection only

    TPS92512HVDGQR has significant advantages in voltage range, efficiency, dimming flexibility and safety protection mechanism , and is very suitable for LED lighting designs that pursue high reliability and high performance.

    Manufacturer introduction: Texas Instruments

    TI is a leading global supplier of analog semiconductors, focusing on high-performance power management, analog signal chain and embedded processor solutions. The TPS92512HV series is one of TI’s high-reliability products for the LED driver market and has been widely used in industrial, automotive, architectural and consumer electronics lighting.

    Why choose TPS92512HVDGQR?

    • Wide input voltage range (4.5V–65V) to adapt to a variety of power supply environments

      ● Up to 2A output current to meet the needs of high-brightness LEDs

      ● Synchronous buck architecture, up to 95% conversion efficiency

      ● Supports analog dimming + PWM dimming for flexible brightness control

      ● Adjustable switching frequency to optimize EMI and external component size

      ● Built-in multiple protection mechanisms to ensure system stability and safety

      ● Industrial temperature range (-40°C to +125°C) to adapt to harsh application environments

    The TPS92512HVDGQR is an efficient, reliable and flexible LED constant current driver solution suitable for high-end industrial, automotive and commercial lighting products.

    Frequently Asked Questions (FAQ)

    Q1: Does TPS92512HVDGQR support thermal protection?
    A: Yes, TPS92512HVDGQR has built-in thermal shutdown protection. When the chip detects that the temperature exceeds the safety threshold, it will automatically shut down the output to prevent damage, and resume operation after the temperature drops to a safe range. This greatly improves the reliability of the system and is suitable for high-power LED driver and other applications with high heat generation.

    Q2: Is the dimming function compatible with 0-10V systems?
    A: Yes, TPS92512HVDGQR supports analog dimming function, which can realize the interface between 0-10V voltage input and IADJ pin through external circuit, so as to adapt to the common 0-10V analog dimming system. This solution has strong compatibility and is suitable for commercial lighting, industrial lighting and other occasions that require precise brightness control.

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