MEAN WELL NLDD-350HW DC/DC Constant Current LED Driver 350 mA

The NLDD-350HW is a non-isolated step-down DC/DC constant current LED driver from MEAN WELL. It delivers a fixed 350 mA output current across a 2–48 VDC voltage range, making it suitable for driving LED strings from a wide 6–50 VDC input. Its compact through-hole PCB mount design supports PWM and analog (1–10 VDC) dimming, with efficiency up to 96%.

Highlights

• Constant current output: 350 mA
• Wide input voltage: 6–50 VDC
• Output voltage range: 2–48 VDC
• Dual dimming: PWM + analog (1–10 VDC)
• High efficiency: up to 96%
• Non-isolated buck topology
• Through-hole PCB mounting
• Operating temperature: -40 to +65 °C
• Protections: short circuit, over temperature

In daily use

The NLDD-350HW is a compact constant current driver for LED lighting applications where a stable 350 mA is required. Its wide input range allows use with various DC power sources, and the dimming capability enables brightness control in both PWM and analog modes. The high efficiency reduces heat generation, and the wide operating temperature range supports use in demanding environments.

Full specifications

• Product type: DC/DC constant current LED driver
• Input voltage: 6–50 VDC
• Output current: 350 mA
• Output voltage: 2–48 VDC
• Dimming: PWM + analog (1–10 VDC)
• Efficiency: up to 96%
• Topology: non-isolated step-down (buck)
• Protections: short circuit, over temperature
• Operating temperature: -40 to +65 °C
• Storage temperature: -40 to +85 °C
• Mounting: through-hole PCB mount
• Compliance: UL/cUL, CE
• Switching frequency: 100 kHz
• No load input current: <1 mA
• MTBF: >1,800,000 hours (MIL-HDBK-217F)

Final note

The NLDD-350HW provides reliable constant current output with flexible dimming options, making it a practical choice for LED driver applications requiring a 350 mA current source.