LED Drivers

Part Number	Description / PDF	Quantity
ODLV-45-36 MEAN WELL	O/P 36V1.25A	0
LPF-40D-48 MEAN WELL	LED DRVR CC AC/DC 28.8-48V 840MA	104
HLG-80H-24AB MEAN WELL	O/P +24V3.4A	5
HLG-120H-C350A MEAN WELL	LED DRVR CC AC/DC 215-430V 350MA	0
HLG-80H-15B MEAN WELL	LED DRIVER CC/CV AC/DC 9-15V 5A	4
HLG-120H-20A MEAN WELL	LED DRVR CC/CV AC/DC 17-22V 6A	30
LDH-45A-500WDA MEAN WELL	LED DRVR CC BOOST 24-86V 500MA	0
HBGC-300-L-A MEAN WELL	300W CONSTANT POWER MODE LED DRI	7
HVGC-240-1050B MEAN WELL	LED DRVR CC AC/DC 114.3-228.6V	37
NPF-90D-48 MEAN WELL	LED DRVR CC AC/DC 28.8-48V 1.88A	0
HLG-60H-48B MEAN WELL	LED DVR CC/CV ACDC 28.8-48V 1.3A	120
PLM-12E-1050 MEAN WELL	LED DRIVER CC AC/DC 7-12V 1.05A	12
PLD-40-1750B MEAN WELL	LED DRVR CC AC/DC 13-23V 1.75A	18
PLC-100-36 MEAN WELL	LED DRIVER CC/CV AC/DC 36V 2.65A	0
FDL-65-1800 MEAN WELL	LED DRVR CC AC/DC 21.6-36V 1.8A	63
HLP-40H-54 MEAN WELL	LED DRVR CC AC/DC 32.4-54V 750MA	72
ELG-200-48A MEAN WELL	LED DRVR CC/CV AC/DC 48V 4.16A	0
HVGC-150-700B MEAN WELL	LED DRVR CC AC/DC 21-215V 700MA	50
APC-25-500 MEAN WELL	LED DRVR CC AC/DC 15-50V 500MA	254
HLG-600H-36AB MEAN WELL	O/P +36V16.7A	21

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