LED Drivers

Image	Part Number	Description / PDF	Quantity	Rfq
	PLED96W-030-HV Thomas Research Products	LED DRIVER CV AC/DC 30V 3.15A	0
	PLED120W-043 Thomas Research Products	LED DRIVER CV AC/DC 43V 2.8A	0
	PLED150W-061-C2450 Thomas Research Products	LED DRIVER CC AC/DC 21-61V 2.45A	0
	LED75W-027 Thomas Research Products	LED DRIVER CV AC/DC 27V 2.8A	0
	PLED120W-043-C2800 Thomas Research Products	LED DRIVER CC AC/DC 15-43V 2.8A	0
	LED100W-071-C1400 Thomas Research Products	LED DRIVER CC AC/DC 23-71V 1.4A	0
	LED50W-042 Thomas Research Products	LED DRIVER CV AC/DC 42V 1.19A	0
	LED60W-015-C4000 Thomas Research Products	LED DRIVER CC AC/DC 5-15V 4A	0
	LEG75W-072-C1050-D Thomas Research Products	LED DRIVER CC AC/DC 24-72V 1.05A	0
	PLED96W-137-C0700-HV Thomas Research Products	LED DRIVR CC AC/DC 46-137V 700MA	0
	99002 Thomas Research Products	LED DRIVER CV AC/AC 12V 1.25A	0
	TRC-075S280DT Thomas Research Products	LED DRIVER CC AC/DC 13-27V 2.8A	0
	LED75W-257-C0300 Thomas Research Products	LED DRIVR CC AC/DC 85-257V 300MA	0
	LED100W-028-C3570-D Thomas Research Products	LED DRIVER CC AC/DC 9-28V 3.57A	0
	PLED96W-036-C2660-D-HV Thomas Research Products	LED DRIVER CC AC/DC 12-36V 2.66A	0
	PLED150W-024-C6250 Thomas Research Products	LED DRIVER CV AC/DC 24V 6.25A	0
	LED30W-66-C0450-D Thomas Research Products	LED DRIVER CC AC/DC 22-66V 450MA	0
	LED20W-28-C0700-LE Thomas Research Products	LED DRIVER CC AC/DC 14-28V 700MA	0
	LED50W-020 Thomas Research Products	LED DRIVER CV AC/DC 20V 2.5A	0
	PLED120W-266-C0450-D Thomas Research Products	LED DRIVR CC AC/DC 89-266V 450MA	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