LED Drivers

Part Number	Description / PDF	Quantity
PDA030A-2A1B PHIHONG USA	LED DRIVER CC AC/DC 6-14V 2.08A	20
PSM090-240P PHIHONG USA	LED DRIVER CV AC/DC 24V 3.75A	0
PDA012A-350C-H-R PHIHONG USA	LED DRIVER CC AC/DC 20-34.4V	6
PDA028A-1A4B PHIHONG USA	LED DRIVER CC AC/DC 14-20V 1.4A	2
PDA025W-1A0B PHIHONG USA	LED DRIVER CC AC/DC 8-24V 1.04A	0
PDA025H-520A PHIHONG USA	LED DRIVER CC AC/DC 30-48V 520MA	0
PDA040B-1A4B PHIHONG USA	LED DVR CC AC/DC 18.2-26V 1.4A	0
PDA012A-700S-R PHIHONG USA	LED DRIVER CC AC/DC 9-17V 700MA	0
PDA125B-1A4F PHIHONG USA	LED DRIVER CC AC/DC 67-89.3V	0
PDA024A-700S-R PHIHONG USA	LED DRIVER CC AC/DC 24-34V 700MA	0
PDA080W-1A6G-R PHIHONG USA	LED DRIVER CC AC/DC 34-48V 1.67A	0
PDA010B-700C PHIHONG USA	LED DRIVER CC AC/DC 7.5-12V	0
PDA037W-350G PHIHONG USA	LED DRIVER CC AC/DC 22-26.5V	0
PDA012A-350S-R PHIHONG USA	LED DRIVER CC AC/DC 17-34V 350MA	0
PDA125B-1A0F PHIHONG USA	LED DRIVER CC AC/DC 84-119V	0
PDA125B-700F PHIHONG USA	LED DRIVER CC AC/DC 134-178.6V	0
PDA012A-1A0S-R PHIHONG USA	LED DRIVER CC AC/DC 6-12V 1A	0
PDA006A-350B PHIHONG USA	LED DRIVER CC AC/DC 9-17V 350MA	0
PDA015B-350C PHIHONG USA	LED DRIVER CC AC/DC 17.5-42V	0
PDA030B-700C PHIHONG USA	LED DRIVER CC AC/DC 15-42V 750MA	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