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Mean Well LDD-350LW DC/DC LED Driver CC 350mA - Step-down
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Mean Well LDD-350LW DC/DC LED Driver CC 350mA - Step-down
Description
Description
Features
| DC/DC step-down converter |
| Constant current output: 300mA to 700mA |
| Wide input voltage: 9~36VDC |
| Wide output LED string voltage: 2~32VDC |
| High efficiency up to 95% |
| Built-in EMI filter, comply with BS EN/EN55015 and FCC part15 without additional input filter and capacitors |
| Built-in PWM and remote ON/OFF control |
| Protections: Short circuit / Over Temperature |
| Cooling by free air convection |
| Fully encapsulated with IP67 level for pin and wire style |
| Compact size |
| Low cost, high reliability |
| Suitable for driving illumination LED |
| 3 years warranty |
General Specification
| Current accuracy | ±5% at 24VDC input |
| Over temperature protection | Protection type : Shut down, recovers automatically after temperature goes down |
| Efficiency | 95% at full load and 24VDC/36VDC input for LDD-300~700L/LW ; 95% at full load and 24VDC input for LDD-300~700LS |
| Short circuit protection | Protection type: Can be continued, recovers automatically after fault condition is removed |
| Working temperature | -40°C to +85°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) | 22.6*9.9*8.9mm or 0.89"*0.39"*0.35" inch for LDD-300~700L/LW ; 25.4*10.5*9.3mm or 1"*0.4135"*0.366" inch for LDD-300~700LS |
| Potting material | Expoxy(UL94-V0) for LDD-300~700L/LW ; without potted for LDD-300~700LS |
Specifications
Specifications
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BrandMean Well
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SeriesLDD Series
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Power Rating11.2 Watt
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Output Voltage32 Volt
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Rated Current0.35 Ampere
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Input Voltage9V~36V
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No of Output1
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Dimming ControlPWM
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Standards MetCE,EAC
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Operation ModeConstant Current
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Operating Temperature-40°C~85°C
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Warranty3 Year
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Length0.89 in
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Width0.39 in
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Height0.35 in
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Weight0.04 lb
File Downloads
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Payment & Security
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Frequently Asked Questions
Can the LDD-350LW be used for a low-voltage LED downlight module?
Yes, it is suited to constant current LED downlight loads at 350mA when the LED string stays within the 2-32V output range. Its output power is up to 11.2W, so it is better matched to lower-power assemblies.
Is this driver suitable for compact LED signage modules?
It can be used with constant current signage modules that require 350mA. Because its constant current range is 2-32V and its power rating is 11.2W, it is intended for lower-voltage, lower-power LED loads rather than larger arrays.
Can I use the LDD-350LW for a small custom LED array in a tight space?
Yes, this model is physically compact at 22.6 × 9.9 × 8.9 mm, which helps in small housings. The LED array still needs to be a 350mA constant current load with a combined forward voltage within 2-32V and a load within 11.2W.
How do I check LED compatibility for the LDD-350LW?
The key match points are 350mA constant current and a 2-32V output range. The number of LEDs depends on each LED forward voltage, so this should be evaluated by total forward voltage instead of a fixed LED quantity.
Is the LDD-350LW acceptable for damp or outdoor installations?
This driver is rated IP67 and operates from -40°C to +85°C. That makes it appropriate for sealed LED systems in wet or dusty conditions, provided the electrical load stays within its 2-32V and 11.2W limits.
