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Mean Well LDH-45B-350WDA DC/DC LED Driver CC 350mA - Step-up
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Mean Well LDH-45B-350WDA DC/DC LED Driver CC 350mA - Step-up
Description
Description
The LDH-45B is a Mean Well power converter (input range: 9~18VDC).
Key Features
- ✓ Input voltage range: 9~18VDC
- ✓ Protections: Short circuit / Over voltage
- ✓ Remote ON/OFF control
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesLDH Series
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Power Rating44.1 Watt
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Output Voltage126 Volt
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Rated Current0.35 Ampere
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Input Voltage18V~32V
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No of Output1
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Dimming ControlDALI
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Standards MetCE,EAC
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Operation ModeConstant Current
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Operating Temperature-40°C~70°C
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Warranty3 Year
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Length2.95 in
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Width2.09 in
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Height0.89 in
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Weight0.04 lb
File Downloads
File Downloads
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Payment & Security
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Frequently Asked Questions
Can the LDH-45B-350WDA power a constant current LED downlight module?
Yes, if the downlight module is specified for 350mA constant current operation. The total LED forward voltage must stay within the 36-126V CC range, and the overall load must not exceed 44.1W.
Is this driver appropriate for LED signage modules that need 350mA?
Yes, it can be used with signage modules built for 350mA constant current input. It is not meant for constant voltage LED products, so the module string needs to match the 36-126V constant current output window.
Can I use this for a compact high-voltage LED array?
This model is suited to small constant current LED arrays that need 350mA and a relatively high combined forward voltage. With a 36-126V CC range and 44.1W rating, it is aimed at higher-voltage strings within that power limit.
Does the LDH-45B-350WDA handle cold, hot, or wet environments well?
The driver is rated IP67 waterproof, which supports use where water and dust resistance matter. It is also specified for operation from -40°C to +70°C, covering a wide environmental range.
How do I size the LED load for this driver?
Match it to a 350mA constant current LED load whose total forward voltage falls between 36V and 126V. The number of LEDs depends on each LED's forward voltage, so sizing should be based on the full array voltage rather than a preset LED quantity.
What separates the LDH-45B-350WDA from the other 350mA LDH-45B models?
The LDH-45B-350WDA and LDH-45B-350DA are both 350mA, 36-126V, 44.1W versions, while LDH-45B-350 and LDH-45B-350W are 350mA, 21-126V, 44.1W versions. Across these 350mA LDH-45B variants, the published differences are the CC voltage range and model style suffixes.
