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Mean Well LDH-45B-500DA DC/DC LED Driver CC 500mA - Step-up
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Mean Well LDH-45B-500DA DC/DC LED Driver CC 500mA - Step-up
Description
Description
Features
| DC/DC step-up converter |
| Constant current output: 350ma to 1050mA |
| Wide output LED forward voltage up to 126VDC |
| High efficiency up to 95% |
| Built-in EMI filter, comply with BS EN/EN55015 without additional input filter and capacitors |
| PWM + analog dimming and remote ON/OFF control [(Blank) type or W type] |
| DALI dimming [(Black)DA type or WDA type |
| Protections: Short circuit/ Over voltage / Under voltage |
| Cooling by free air convection |
| Fully encapsulated |
| 3 years warranty |
General Specification
| Current accuracy | ±5% at 12VDC input |
| Over-voltage protection | up to 140% output voltage |
| Efficiency | 95.5% |
| Short circuit protection | Protection type: Power OFF and fuse open |
| Working temperature | -40 ~ +70℃ (Refer to "Derating Curve") |
| EMC | Compliance to EN55015, EN61000-4-2,3,4,6,8, EAC TP TC 020 |
| Temp. Coefficient | ±0.03%/℃ (0 ~ 50℃) |
| Dimension (LxWxH) (mm) | 75 x 53 x 22.7mm |
| Packing | 138g;100pcs/14.8Kg/0.83CUFT[(Blank) type or (Blank) DA type],1.04CUFT(W type or WDA type) |
Specifications
Specifications
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BrandMean Well
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SeriesLDH Series
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Power Rating43 Watt
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Output Voltage86 Volt
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Rated Current0.5 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-500DA be used for a 500mA constant current LED downlight array?
Yes, if the downlight array is designed for 500mA constant current operation. The full LED load must fall within the 36-86V CC output range and stay within the 43W maximum power.
Is this driver a fit for 500mA LED signage modules?
It can be a fit for constant current signage modules that are specified for 500mA. Because it is a constant current driver and not a constant voltage supply, the LED string's total forward voltage must be within 36-86V.
Can I use this driver with a small LED array that has a higher forward voltage string?
Yes, this step-up constant current model is intended for 500mA LED arrays within a 36-86V output range. That makes it better suited to higher-voltage 500mA arrays than lower-range CC drivers.
Is the LDH-45B-500DA suitable for outdoor or sealed fixture environments?
This model is rated IP67 waterproof, which supports use where water and dust resistance are important. Its operating temperature range is -40°C to +70°C, so it is specified for a wide range of environmental conditions.
What should I check to confirm LED compatibility?
Confirm that the LED load needs 500mA constant current and that its total forward voltage falls within the 36-86V CC range. The number of LEDs depends on each LED's forward voltage, so there is no single fixed LED quantity for this driver.
What are the key differences in the LDH-45B-500 family?
LDH-45B-500 and LDH-45B-500W are both 500mA, 21-86V, 43W models, while LDH-45B-500DA and LDH-45B-500WDA are 500mA, 36-86V, 43W models. The main published differences are the CC voltage range and version suffixes, not the nominal wattage.
