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HXD-GL068 LED Constant Current Backlight Driver Board is a professional DC-DC power solution exclusively developed for 55–75 inch large-size LCD panels. Built with industrial constant current design, 93.5% ultra-high conversion efficiency and triple dimming modes (DC ADJ / PWM / Ambient Light Sensor), the universal LED driver board is widely utilized as the core backlight solution in commercial digital signage, smart advertising kiosks, industrial LCD display monitors. As a highly demanded component with thousands of pieces readily available in our stock, we offer reliable long-term supply, competitive factory-wholesale pricing, and comprehensive technical datasheets to fully support your projects.
Product Overview
HXD-GL068 is a high-performance industrial-grade DC-DC LED backlight driver board designed to provide a highly stable, constant-current power supply for largesize LCD LED backlight systems. This advanced backlight driver board features a standard 24V DC input and delivers a flexible output voltage from 50V to 110V with a powerful single-channel constant current up to 2000mA. It features an exceptionally high energy efficiency of 93.5% and offers dual-mode input control through standard 14-pin power connectors along with a 3-way switch for multi-mode dimming selection. Support multi-board synchronous linkage, wide temperature working range and built-in fuse overcurrent protection, it is the preferred standard backlight power accessory for industrial display equipment, advertising machines, splicing screens, commercial monitors and LCD TV equipment manufacturers, system integrators and after-sales maintenance suppliers.
Key Features
• High Performance with Low Consumption: Delivers an outstanding electrical efficiency of 93.5%, significantly minimizing heat generation inside sealed LCD enclosures and extending the overall lifetime of the surrounding electronic components.
• Input Overload Protection: Features a built-in fuse system to safeguard the inverter and the expensive connected LCD module from input current spikes, preventing catastrophic field failures.
• Wide Industrial Temperature Window: Fully tested to operate flawlessly between -20℃ ~+70℃ with humidity tolerance up to 95% RH, meeting the rigorous standards required for non-climate-controlled environments.
• Adjustable Tailored Current Output: The output current can be finely adjusted by modifying the onboard feedback resistors, allowing you to perfectly match the precise voltage/current specifications of your specific LED strips.
♦ DC-DC Constant Current Driving Core
Adopt professional LED constant current drive scheme, constant current output to the LED light bar, avoid current fluctuation causing screen flicker and light strip attenuation, ensure long-term uniform brightness of the display screen.
♦ Triple Optional Dimming Control Modes
• ADJ DC Analog Dimming: 0V full brightness / 5V lowest brightness, smooth stepless brightness adjustment, suitable for fixed indoor display scenes;
• PWM Digital Dimming: Support 1kHz–10kHz frequency input, 0%–100% duty cycle adjustment, flicker-free high-precision dimming, applicable to high-end commercial display equipment;
• GM Ambient Light Sensing Dimming: Match photodiode sensor, automatically adjust brightness according to ambient light, energy-saving and eye-friendly, perfect for window, outdoor terminal equipment.
♦ Multi-Board Synchronous Linkage Function
Independent CN3/CN4 synchronous control interface, multiple driver boards can be connected in parallel, all boards realize synchronous standby, synchronous dimming adjustment, solve the brightness inconsistency problem of multi-screen splicing projects.
♦ Overcurrent Safety Protection
Built-in fuse input overcurrent protection, automatically cut off power when overload, short circuit occurs, protect LED light strips, display panel and main control board from burnout.
♦ Standby Switch Control
Independent ON/OFF enable pin: 2.5V–5V power-on operation, 0V–0.8V standby shutdown, support equipment host power management, realize screen automatic sleep energy saving.
♦ Customizable Output Current
The output constant current can be modified by replacing the feedback resistor on the board, freely matching the current parameters of different brand LED backlight strips, supporting personalized OEM customization.
♦ Ambient Light Sensing Matching Interface
Independent CN2 photosensitive socket, directly connected to photodiode, realize automatic brightness adjustment without additional auxiliary circuit, simplify your equipment design.
Technical Specification
Clicking "Download" will provide you with a detailed parameter datasheet for HXD-GL068 LED driver board. The mechanical drawings are as follows：
PCB photosensitive head mechanical dimensions:
♦ Applicable Screen Size: 55 inch ~ 75 inch LED backlight LCD panels (high-brightness backlight panels included)
♦ Matching Equipment Types:
• Commercial advertising machines, wall-mounted digital signage
• LCD splicing screens, large-size commercial monitors
• All-in-one touch display, self-service kiosk terminals
• Large-size LCD TV, industrial display equipment
♦ Compatible LED Backlight Parameters:
Output voltage range 50V–110V, default constant current 2000mA, current adjustable by resistance replacement, compatible with most single-group series-parallel LED light bars of 55–75 inch screens from mainstream panel manufacturers.
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As a professional industrial LCD display solutions provider with over a decade of experience, Hengxinda not only offers high-quality LCD driver boards and LED backlight driver board but is also an authorized distributor for the world’s leading LCD panel manufacturers (AUO, BOE, Innolux, IVO, Sharp etc.). By choosing us, you’ll enjoy a one-stop, all-inclusive “LCD panel + matched accessories” package:
• 100% Compatibility Guarantee: Before shipment, our engineers will perform current-based screen calibration on the HXD-GL068 driver board using the specific 55“-75” LCD panel you’ve selected, ensuring perfect parameter matching.
• One-Stop Shopping: We provide a complete set of LCD panels, touchscreens, backlight driver boards, AD driver boards, and a full suite of custom industrial-grade screen connection cables, eliminating the hassle of sourcing from multiple suppliers and coordinating with various parties.
• Unified After-Sales Responsibility: The entire solution comes with a unified warranty, completely eliminating technical disputes where panel and driver board manufacturers shift blame onto each other at the source.
• 5+ Years of Industrial-Grade Long-Term Supply Guarantee: Hengxinda guarantees that there is no risk of sudden discontinuation; we guarantee that HXD-GL068 LED driver board will have a stable lifecycle of at least 5 years, providing you with long-term supply chain support.
Q1: Is this LED driver board suitable for my 65-inch high-brightness advertising machine?
A1: Yes, HXD-GL068 supports 55–75 inch all LED backlight panels including high-brightness versions. The output voltage range 50–110V and max 120W output power fully cover the power demand of 65-inch high-brightness light strips, and the output current can be adjusted according to your light bar parameters to match perfectly.
Q2: What dimming modes does this LED driver board support?
A2: Three modes are available: DC ADJ analog dimming, PWM digital dimming, and GM ambient light sensing auto-dimming. Match the photodiode via the CN2 photosensitive interface, the board can automatically adjust screen brightness according to surrounding light intensity, ideal for window and outdoor display equipment.
Q3: What protection functions does the drive board have?
A3: Built-in fuse input overcurrent protection. Once the LED light bar has short circuit or overload, the fuse will rapidly cut off the power supply to avoid burning the LCD panel and main control board, greatly reducing your after-sales maintenance loss.
Q4: Can I customize the output current to match my special LED light strips?
A4: Support custom output current. You only need to replace the feedback resistor on the board to adjust the constant current value, we can also provide pre-adjusted finished boards according to your light bar parameters.
Q5: What is the working temperature range?
A5: Operating temperature range -20℃ ~70℃, normal operation under low temperature cold storage and high-temperature indoor environment, humidity 10%–95% RH without condensation failure.
Q6: Do you support sample testing first before bulk order?
A6: Yes, we provide sample order service for customer performance verification. After you confirm the sample test report meets your project requirements, you can arrange mass procurement.
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