LED Drivers

Part Number	Description / PDF	Quantity
LD20W-48-C0350-RD EPtronics, Inc.	LED DRIVER AC/DC CC 16-48V 350MA	1
LDH-45B-700W MEAN WELL	LED DRVR CC BOOST 21-64V 700MA	426
APC-8-500 MEAN WELL	LED DRIVER CC AC/DC 8-16V 500MA	248
LXD52-0700SW UltraVolt	LED DRIVER CC AC/DC 38-75V 700MA	0
IDLV-45-36 MEAN WELL	LED DRIVER CV AC/DC 36V 1.25A	48
ELG-150-C700DA MEAN WELL	LED POWER SUPPLIES 700MA107-214V	10
HLG-150H-12 MEAN WELL	LED DRVR CC/CV AC/DC 6-12V 12.5A	11
LXC96-2450SW UltraVolt	LED DRIVER CC AC/DC 19-39.1V	0
HLG-240H-48B MEAN WELL	LED DRVR CC/CV AC/DC 24-48V 5A	191
NPF-120D-48 MEAN WELL	LED DRVR CC AC/DC 28.8-48V 2.5A	317
GSC40B-1050 MEAN WELL	LED DRVR CC AC/DC 19-38V 1.05A	59
LPFH-60-12 MEAN WELL	LED DRVR CC/CV AC/DC 7.2-12V 5A	29
EBR015U-0300-42 ERP Power	LED DRIVER CC AC/DC 30-42V 300MA	88
NPF-90D-20 MEAN WELL	LED DRIVER CC AC/DC 12-20V 4.5A	0
HVG-480-24A MEAN WELL	LED DVR CCCV ACDC 20.4-25.2V 20A	0
LXD120-1750SW UltraVolt	LED DRIVER CC AC/DC 41-68V 1.75A	0
LPV-100-36 MEAN WELL	LED DRIVER CV AC/DC 36V 2.8A	0
HLN-40H-48B MEAN WELL	LED DRVR CC/CV AC/DC 48V 840MA	0
LDU5660S1000-WD XP Power	LED DRIVER CC BUCK 2-56V 1A	0
PLED96W-034-C2800 Thomas Research Products	LED DRIVER CC AC/DC 12-34V 2.8A	0

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