LED Drivers

Part Number	Description / PDF	Quantity
HVG-320-42B MEAN WELL	LED DRVR CC/CV AC/DC 21-42V 7.6A	0
XLG-75-H-AB MEAN WELL	75W CONSTANT POWER MODE LED DRIV	409
HVG-150-54AB MEAN WELL	I/P 180~528VAC O/P +54V2.78A	0
HLG-100H-42AB MEAN WELL	O/P +42V2.28A	0
HBG-60-2100P MEAN WELL	LED DRIVER CC AC/DC 12-29V 2.1A	3
ELG-150-C1750A MEAN WELL	LED POWER SUPPLIES 150.5W 1750MA	67
ODLC-45-700 MEAN WELL	LED DRVR CC AC/DC 38-64V 700MA	53
ELG-200-42 MEAN WELL	LED DRVR CC/CV AC/DC 42V 4.76A	0
HVGC-320-2800AB MEAN WELL	I/P 180~528VAC O/P +114.3V2800MA	0
ELG-150-C2100D2 MEAN WELL	LED POWER SUPPLIES 2100MA 36-72V	2
HBG-240-24B MEAN WELL	LED DVR CC/CV AC/DC 14.4-24V 10A	0
ODLV-65A-24 MEAN WELL	LED DRIVER CV AC/DC 24V 2.4A	0
HLG-40H-30B MEAN WELL	LED DVR CC/CV AC/DC 18-30V 1.34A	0
HLG-320H-20B MEAN WELL	LED DRVR CC/CV AC/DC 10-20V 15A	41
ELG-150-42 MEAN WELL	LED DRVR CC/CV AC/DC 21-42V	7
HLG-150H-20A MEAN WELL	LED DRVR CC/CV AC/DC 17-22V 7.5A	24
ELG-75-12 MEAN WELL	LED DRVR CC/CV AC/DC 12V 5A	17
HLG-60H-20A MEAN WELL	LED DRVR CC/CV AC/DC 17-22V 3A	9
PLC-30-24 MEAN WELL	LED DRVR CC AC/DC 16.8-24V 1.25A	59
NPF-60D-42 MEAN WELL	LED DRVR CC AC/DC 25.2-42V 1.43A	17

LED Drivers

1. Overview

LED drivers are electronic devices that regulate power to LED light sources. They convert AC mains voltage to DC current/voltage required by LEDs, ensuring stable light output and longevity. Modern lighting systems rely on LED drivers for energy efficiency (up to 95% efficiency), thermal management, and dimming control in applications ranging from consumer electronics to industrial lighting.

2. Main Types & Functional Classification

Type	Function Features	Application Examples
Constant Current (CC)	Provides fixed output current (e.g., 350mA/700mA), adjustable voltage range	High-power LED streetlights, architectural lighting
Constant Voltage (CV)	Maintains fixed output voltage (e.g., 12V/24V DC), variable current	LED strips, downlights, backlighting systems
Dimmable Drivers	Supports 0-10V/PWM/digital dimming protocols	Smart home lighting, theater stage lighting
Offline Drivers	Direct AC mains input without external transformer	Industrial LED floodlights, retrofit bulbs

3. Structure & Components

Typical construction includes: - Die-cast aluminum housing with IP65+ protection - Input EMI filter and bridge rectifier - Power factor correction (PFC) circuit - Isolated flyback/forward converter topology - Output current sensing resistor network - Thermal shutdown and overvoltage protection (OVP) circuits - Optional DALI/DMX communication interfaces

4. Key Technical Specifications

Parameter	Typical Range	Significance
Input Voltage	90-305V AC / 12-48V DC	Determines global compatibility
Output Current	100mA-2.5A	Matches LED string requirements
Efficiency	85-96%	Impacts energy consumption
Power Factor	0.85-0.99	Reduces grid reactive power
Operating Temp	-40 C to +85 C	Environmental reliability

5. Application Fields

Architectural Lighting: Bridge/tower accent lighting
Industrial: High-bay warehouse lighting systems
Automotive: Adaptive driving beam (ADB) headlights
Smart Cities: IoT-enabled streetlight networks
Medical: Surgical operating room lighting

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
Philips Xitanium	XF2G121	105W, 0-10V dimming, 5-year warranty
Osram OT	OTi DALI	DALI-2 certified, 16A output
Mean Well	HBL-40A	40W constant current, IP67 rating
TI LM	LM3445	Triac dimmable, 150W offline driver

7. Selection Guidelines

Match output current/voltage to LED specifications
Verify dimming compatibility (e.g., phase-cut vs. 0-10V)
Check environmental ratings (IP, temperature)
Confirm safety certifications (UL, CE, DLC)
Calculate system lifetime vs. driver MTBF

8. Industry Trends

Key developments include: - Integration with wireless protocols (Bluetooth Mesh, Zigbee) - 80Plus Titanium efficiency standards adoption - GaN/SiC semiconductor implementation - Predictive maintenance capabilities via IoT connectivity - EU Ecodesign Lot 20 compliance requirements