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Mean Well LDH-45A-350WDA DC/DC LED Driver CC 350mA - Step-up
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Mean Well LDH-45A-350WDA DC/DC LED Driver CC 350mA - Step-up
The LDH-45A 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
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BrandMean Well
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SeriesLDH Series
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Power Rating30.1 Watt
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Output Voltage86 Volt
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Rated Current0.35 Ampere
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Input Voltage9V~18V
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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
::specification::
Frequently Asked Questions
Can I use the LDH-45A-350WDA for 350mA LED downlights with a longer series string?
Yes, if the downlight uses constant current at 350mA and the total LED forward voltage stays within the 24-86V constant current range. This model is suited to higher-voltage LED strings because its regulated output starts at 24V and goes up to 86V. The connected load also needs to stay within 30.1W.
Is this a good driver for constant current signage modules in a sealed outdoor housing?
It can be used for constant current signage modules that require 350mA and fall within the 24-86V output range. The IP67 waterproof rating and -40°C to +70°C operating range support outdoor or enclosed conditions where moisture and temperature swings matter. It is not intended for fixed-voltage LED products.
Can the LDH-45A-350WDA run a small LED array that needs more than a low string voltage?
Yes, this step-up constant current driver is intended for 350mA LED arrays whose total forward voltage sits in the 24-86V range. That makes it better suited to higher-voltage arrays than lower-voltage constant current strings. The array must also remain within the 30.1W rating.
What matters most when checking LED compatibility with the LDH-45A-350WDA?
The LED load must be a constant current load rated for 350mA, and its total forward voltage must fit the 24-86V constant current range. The number of LEDs depends on each LED's forward voltage, so compatibility is based on total string voltage rather than a set LED count. The driver's maximum output voltage is 86V and its power rating is 30.1W.
Will this driver handle cold, hot, or wet environments for LED assemblies?
Yes, it is rated IP67 and operates from -40°C to +70°C, so it is built for challenging environmental conditions. Those ratings make it appropriate for protected outdoor lighting assemblies and other exposed locations where water and dust resistance are important. Its compact dimensions are 75.0 × 53.0 × 22.7 mm.
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