Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well LDDS-350HWB DC/DC LED Driver CC 350mA - Step-down Wire Type - 3 in 1 Dimmable
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Description
Description
Features
| DC/DC step-down converter |
| Constant current output: 250mA to 1000mA |
| Wide input voltage: 12~56VDC(48V typ.) |
| Wide output LED forward voltage: 2~45VDC |
| High efficiency up to 96% |
| Built-in EMI filter, comply with BS EN/EN55015 |
| 3 in 1 dimming and remote ON/OFF control |
| Protections: Short circuit/Over temperature/ Over current |
| Cooling by free air convection |
| Compact size and Fully encapsulated |
| Suitable for driving illumination LED |
| 5 years warranty |
General Specification
| Current accuracy | ±5% at 48VDC input (or 24VDC) |
| Over temperature protection | Protection type : Shut down, recovers automatically after temperature goes down |
| Efficiency | 94%; 95%; 96% (typical) |
| Short circuit protection | Regulated at rated output current |
| Working temperature | -40°C to +55°C |
| EMC | Compliance to EN55015 class B, EN61000-4-2,3,4,6,8, EAC TP TC 020 |
| Temp. Coefficient | ±0.03% / °C |
| Dimension (LxWxH) (mm) | 47*12*7mm or 1.85"*0.47"*0.28" inch |
| Potting material | Expoxy(UL94-V0) |
Specifications
Specifications
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BrandMean Well
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SeriesLDDS Series
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Power Rating45 Watt
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Output Voltage45 Volt
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Rated Current0.35 Ampere
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Input Voltage2V~45V
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No of Output1
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Dimming Control10V PWM,1-10V,Resistance
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Standards MetCB,CCC,CE,EAC,ENEC,UL
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Operation ModeConstant Current
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Operating Temperature-40°C~55°C
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Warranty5 Year
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Length1.85 in
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Width0.47 in
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Height0.28 in
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Weight0.02 lb
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the LDDS-350HWB with a dimmable LED downlight?
Yes, if the downlight is built for 350mA constant current operation. This model is a 350mA constant current step-down driver rated at 45W with a 45-2V output range, and the HWB version adds 3 in 1 dimmable capability.
Is the LDDS-350HWB a fit for dimmable signage LED modules?
It can be, provided the signage modules are specified for 350mA constant current rather than constant voltage. The driver delivers constant current across a 45-2V range and is rated IP67, which helps when the application needs a sealed driver body.
Can this model power a small dimmable LED array?
Yes, for small LED arrays that require 350mA constant current and fall within the 45-2V constant current range. Its 45W rating and compact 47.0 x 12.0 x 7.0 mm body make it suitable where both dimming and limited space matter.
How do I size the LDDS-350HWB to my LEDs?
Match it to LED loads that need 350mA constant current and whose combined forward voltage stays within 45-2V. The number of LEDs depends on each LED forward voltage, so compatibility is based on voltage range and current requirement, not a fixed LED quantity.
Can the LDDS-350HWB be used in harsh temperature or wet locations?
This driver is rated IP67 and has an operating temperature range of -40 degC to +55 degC. That makes it better suited to demanding environmental conditions than an indoor-only, non-sealed driver, as long as the rest of the system is specified accordingly.
