LED Drivers

Part Number	Description / PDF	Quantity
PCD-16-700B MEAN WELL	LED DRVR CC AC/DC 16-24V 700MA	106
ODLV-45-12 MEAN WELL	O/P 12V3.0A	0
HVGC-320-1750A MEAN WELL	LED DRVR CC AC/DC 91.4-182.8V	0
PLD-25-350 MEAN WELL	LED DRVR CC AC/DC 36-58V 350MA	83
IDLV-25-24 MEAN WELL	LED POWER SUPPLIES 25.2W 24V 1.0	1648
PCD-60-500B MEAN WELL	LED DRVR CC AC/DC 70-108V 500MA	18
HLG-240H-C1750B MEAN WELL	LED DRVR CC AC/DC 71-143V 1.75A	308
HLG-185H-12B MEAN WELL	LED DRVR CC/CV AC/DC 6-12V 13A	11
IDPC-45A-1400 MEAN WELL	LED DRVR CC AC/DC 19-32V 1.4A	12
ELG-75-24DA MEAN WELL	LED POWER SUPPLIES 75.6W 24V3.15	2
HVGC-650-M-AB MEAN WELL	LED DRVR CP AC/DC 160V 4.2A	12
HLG-80H-42A MEAN WELL	LED DVR CC/CV AC/DC 38-46V 1.95A	215
ELG-240-54 MEAN WELL	LED DRVR CC/CV AC/DC 54V 4.45A	0
HLG-120H-C1400A MEAN WELL	LED DRVR CC AC/DC 54-108V 1.4A	61
PWM-90-36 MEAN WELL	LED DRIVER CV AC/DC 36V 2.5A	0
IDPV-25-48 MEAN WELL	I/P:90-295VAC O/P:+48V 0.52A	0
LPC-100-500 MEAN WELL	LED DRVR CC AC/DC 100-200V 500MA	28
IDLC-25A-1050 MEAN WELL	LED DRVR CC AC/DC 16.8-24V 1.05A	0
LPF-90-36 MEAN WELL	LED DVR CC/CV ACDC 21.6-36V 2.5A	6
XLG-75-L-AB MEAN WELL	75W CONSTANT POWER MODE LED DRIV	8

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