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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