Meanwell LDH-45A-350W DC/DC Constant Current LED Driver 350mA 14W

The Meanwell LDH-45A-350W is a high-efficiency DC/DC constant current LED driver designed for professional lighting applications. With a compact through-hole PCB mount design, it delivers a precise 350mA output current and supports both PWM and analog dimming (1-10VDC) for versatile control. Ideal for LED modules, downlights, and track lighting systems requiring a reliable, dimmable power source.

Advantages

Ultra-high efficiency up to 96% minimizes energy loss and heat generation. Wide input voltage range (9-45VDC) accommodates various DC power sources. Built-in protections (short circuit, over temperature) ensure long-term reliability. Remote ON/OFF control enables easy integration with lighting control systems.

Suitable for

• Constant current LED modules and strips
• Architectural and accent lighting
• Commercial downlights and track lights
• Industrial and outdoor LED fixtures (with appropriate enclosure)

Key specifications

• Output Current: 350 mA
• Output Voltage Range: 2-40 VDC
• Maximum Output Power: 14 W
• Input Voltage Range: 9-45 VDC
• Efficiency: Up to 96%
• Dimming: PWM + Analog (1-10VDC)
• Protections: Short Circuit, Over Temperature
• Operating Temperature: -40 to +70 °C
• Isolation Voltage: I/O 1.5KVAC
• Mounting: Through-hole (PCB Mount)
• Topology: Buck (Step-down)
• Ripple & Noise: <100mVp-p
• MTBF: >1,000,000 hours
• Compliance: UL/cUL, CE

Recommendations

For optimal performance, ensure adequate ventilation and avoid exceeding the maximum output power. Use with a suitable DC power source within the input voltage range. This driver is not suitable for direct AC connection.