LCD Constant Current Driver Board
Input Voltage: 12-24V DC (Wide Voltage Range)
Output Current: 200-500mA Adjustable (±3% Precision)
Constant Current Channels: 6 Channels (Independent Control)
Dimming Control: PWM Dimming (100Hz-20kHz) / Analog Dimming (0-5V)
Efficiency: >85% (Typical at Full Load)
Protection: Over-voltage, Over-current, Short-circuit, Open-circuit, Thermal Foldback
Operating Temperature: -30°C to +85°C (Extended Industrial Range)
Dimensions: 100mm × 60mm × 10mm (Ultra-Slim Profile)
Certifications: CE, RoHS, UL Recognized
Compatibility: Supports TFT-LCD/LED Backlight Modules (10-50V Forward Voltage)
Key Features:
✔ High-Precision Current Regulation for Uniform Brightness
✔ Multi-Channel Synchronization via External Signal
✔ Reinforced Insulation (3kV AC for Safety Compliance)
✔ Low Ripple & Noise (<50mVp-p) for Flicker-Free Display
✔ Configurable Current Limits via Onboard Potentiometer
Constant Current LED Backlight Driver Board for LCD Panels – Technical Overview
Precision Illumination Control for Optimal Display Performance
Core Features
Stable Current Regulation
±1% Current Accuracy: Ensures uniform brightness across LED backlight strips, eliminating hotspots or dim zones.
Wide Input Voltage: 12–48V DC (±10%), compatible with industrial and consumer power systems.
Advanced Protection Mechanisms
OVP/OCP/SCP: Over-voltage (up to 60V), over-current (adjustable 100mA–3A), and short-circuit protection.
Thermal Management: Auto-shutdown at 85°C with hysteresis recovery.
Flexible Dimming Control
Dual-Mode Dimming: PWM (100Hz–20kHz) and analog (0–5V) inputs for seamless integration with display controllers.
16-bit Dimming Resolution: Smooth brightness transitions without flicker (TÜV-certified).
Technical Specifications
| Parameter | Specification |
|---|---|
| Output Channels | 6 channels (max 150mA/channel) |
| Efficiency | ≥90% @ full load |
| Operating Temp | -40°C to +85°C |
| Dimming Range | 0.1%–100% |
| PCB Dimensions | 80mm × 45mm × 1.6mm (FR4) |
| Certifications | CE/RoHS/UL 60950-1 |
Compatible LCD Panels
10.1"–32"LED Backlights: Supports edge-lit and direct-lit configurations.
Panel Brands: LG, Samsung, BOE, Innolux, AUO.
Custom Configurations: Adjustable string voltage (20–200V) and parallel/serial LED arrangements.
Key Applications
Medical Displays: Stable backlight for surgical monitors and imaging systems.
Industrial HMIs: Reliable operation in high-vibration/multi-dust environments.
Digital Signage: Long-term 24/7 operation for advertising screens.
Automotive Clusters: AEC-Q100 Grade 2 compliance option available.
Smart Functions
LED Open/Short Detection: Real-time fault reporting via I²C interface.
Current Sharing: Balances load across multiple driver boards for large-format displays.
Aging Mode: Simulates 10,000-hour stress tests during production QC.
Certifications & Services
ISO 9001/14001 manufacturing standards
IP67 Encapsulation Option for harsh environments
3-Year Warranty with failure analysis reports
OEM/ODM Support: Custom labeling, firmware, and I/O customization
Why Choose This Driver Board?
Plug-and-Play Design: Pre-configured for major panel models; no coding required.
Energy Efficiency: Reduces power waste vs. resistive drivers.
Global Compliance: Meets EMI/EMS standards (EN 55032/55024).
Engineered to deliver unwavering reliability—where precision meets durability for mission-critical displays.
Comprehensive score