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Mean Well LDH-45B-700 DC/DC LED Driver CC 700mA - Step-up
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
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BrandMean Well
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SeriesLDH Series
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Power Rating44.8 Watt
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Output Voltage64 Volt
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Rated Current0.7 Ampere
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Input Voltage18V~32V
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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~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-45B-700 for a 700mA LED downlight string?
Yes, this driver is intended for constant current LED loads at 700mA, which is common in higher-output LED downlights. It supports a 21-64V constant current output range and up to 44.8W, so the full LED string must fall within that forward voltage range. It is not a constant voltage driver.
Will the LDH-45B-700 work for constant current signage modules?
Yes, it can work for signage modules that are specifically designed for 700mA constant current operation. Its 21-64V output range and 44.8W power level fit many mid-voltage constant current module strings. It should not be used where the signage system expects constant voltage input.
Is this driver appropriate for a small high-brightness LED array?
Yes, for a small LED array that needs a regulated 700mA constant current source. The driver can step up within a 21-64V output range and deliver up to 44.8W, which suits compact high-brightness arrays in that electrical window. The array's total forward voltage is the key sizing factor.
How do I size the LED load for the LDH-45B-700?
Match the load by current and total forward voltage rather than by a fixed LED count. This model provides 700mA constant current over 21-64V, and the number of LEDs depends on each LED's forward voltage. If the LEDs need constant voltage instead of 700mA constant current, choose a different driver type.
What are the main differences between the LDH-45B-700 and related LDH models?
The closest siblings are LDH-45B-700DA at 700mA, 36-64V, 44.8W; LDH-45B-700W at 700mA, 21-64V, 44.8W; and LDH-45B-700WDA at 700mA, 36-64V, 44.8W. In the same LDH-45B family, 500mA models are rated 21-86V or 36-86V at 43W, 350mA models are rated 21-126V or 36-126V at 44.1W, and 1050mA models are rated 21-43V or 36-43V at 45.15W.
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