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LDH-45
8.13
Details
Meanwell LDH-45 series is DC-DC Step-Up LED driver highlighting constant current output. LDH-45A-X is 9~18VDC input model, and LDH-45B-X is 18~32VDC input model. These two series have 350mA/500mA/700mA/1050mA output current. In addition, LDH-45 has built-in PWM and analog dimming functions, which can realize remote ON/OFF control and adjust output current through external PWM signals or 0.25~1.3VDC analog voltage to meet the diversified energy-saving dimming needs of the lamp system. Since the work efficiency reaches high to 95%, and operates at -40℃~+70℃ under natural air cooling and heat dissipation conditions. LDH-45 Series adopts internal glue filling method, enhancing the heat dissipation effect with high waterproof and dustproof capabilities. Besides them, the input and output have two versions: plug-in type and outlet type, which is convenient for the selection of system design. With built-in EMI filter, it can fit the requirements of the EU EN55015 specification without additional electromagnetic interference (EMC) suppression components. Moreover, the series is equipped with various function options such as short-circuit protection, overvoltage protection, input undervoltage protection. Considering its longevity, high efficiency and excellent quality, Meanwell LDH-45 Series serves as an ideally suitable solution for optimal design flexibility for LED lighting system like street lights, landscape lights, tunnel lights, household lighting, and so on.
Meanwell LDH-45 Series Model Specifications
| Model | LDH-45A-350□ | LDH-45A-500□ | LDH-45A-700□ | LDH-45A-1050□ | LDH-45B-350□ | LDH-45B-500□ | LDH-45B-700□ | LDH-45B-1050□ | ||
| OUTPUT | RATED CURRENT | 350mA | 500mA | 700mA | 1050mA | 350mA | 500mA | 700mA | 1050mA | |
| CURRENT ACCURACY (Typ.) | ±5% at 12VDC input | ±5% at 24VDC input | ||||||||
| VOLTAGE RANGE | NON-DALI | 12-86VDC | 12-86VDC | 12-64VDC | 12-43VDC | 21-126VDC | 21-86VDC | 21-64VDC | 36-43VDC | |
| DALI | 24-86VDC | 24-86VDC | 24-64VDC | 24-43VDC | 36-126VDC | 36-86VDC | 36-64VDC | 36-43VDC | ||
| NO LOAD OUTPUT VOLTAGE (max.) | 100V | 100V | 75V | 50V | 146V | 100V | 75V | 50V | ||
| RATED POWER | 30.1W | 43W | 44.8W | 45.15W | 44.1W | 43W | 44.8W | 45.15W | ||
| RIPPLE & NOISE (max.) | 2.5Vp-p | 2.5Vp-p | 1.9Vp-p | 1.9Vp-p | 2.5Vp-p | 1.7Vp-p | 1.2Vp-p | 1.2Vp-p | ||
| Input | RATED VOLTAGE | 12VDC | 24VDC | |||||||
| VOLTAGE RANGE | 9-18VDC | 18-32VDC | ||||||||
| EFFICIENCY (max) | 91.00% | 90.00% | 90.00% | 91.00% | 93.00% | 94.00% | 95.00% | 95.00% | ||
| DC CURRENT (Typ) | 2.8A% | 4.1A% | 4.2A% | 4.2A% | 2.1A | 2.1A | 2A | 2A | ||
| PWM DIMMING & ON/OFF CONTROL | REMOTE ON/OFF | Leave open if not used | ||||||||
| Power ON with dimming: PWM signal >2~8VDC or open circuit, between PWM DIM and DIM | ||||||||||
| Power OFF : PWM signal <0.5VDC or short or PWM duty is equal to 0%, between PWM DIM and DIM | ||||||||||
| PWM DIMMING FREQUENCY | 1K~10KHz | |||||||||
| QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.) | 7mA when PWM dimming OFF | |||||||||
| ANALOG DIMMING & ON/OFF CONTROL | REMOTE ON/OFF | Leave open if not used | ||||||||
| Power on with dimming: DC input>0.25~8VDC or open circuit, between Analog DIM and DIM | ||||||||||
| Power off : DC input<0.2VDC or short, between Analog DIM and DIMNO | ||||||||||
| DIM INPUT VOLTAGE RANGE | 0.25-1.3VDC | |||||||||
| QUIESCENT INPUT CURRENT IN SHUTDOWN MODE (Typ.) | 7mA when Analog dimming OFF | |||||||||
| PROTECTION | SHORT CIRCUIT | Protection type : Power OFF and fuse open | ||||||||
| OVER VOLTAGE (max.) | 100V | 100V | 75V | 50V | 146V | 100V | 75V | 50V | ||
| Protection type : Constant output voltage and shut off o/p current, recovers automatically after fault condition is removed | ||||||||||
| ENVIRONMENT | WORKING TEMP. | -40 ~ +70℃ (Refer to "Derating Curve") | ||||||||
| WORKING HUMIDITY | 20 ~ 90% RH non-condensing | |||||||||
| STORAGE TEMP., HUMIDITY | -40 ~ +85℃, 10 ~ 95% RH | |||||||||
| TEMP. COEFFICIENT | ±0.03%/℃ (0 ~ 50℃) | |||||||||
| VIBRATION | 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes | |||||||||
| SOLDERING TEMPERATURE | Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.) | |||||||||
| EMC | SAFETY STANDARDS | LVD BS EN/EN61347-1, BS EN/EN61347-2-13, EAC TP TC 004 approved | ||||||||
| EMC EMISSION | Compliance to BS EN/EN55015;EAC TP TC 020 | |||||||||
| EMC IMMUNITY | Compliance to BS EN/EN61547,BS EN/EN61000-4-2,3,4,6,8; light industry level;EAC TP TC 020 | |||||||||
| Others | MTBF | 12195.2K hrs min. Telcordia SR-332 (Bellcore) ; 1179.3K hrs min. MIL-HDBK-217F (25℃) | ||||||||
| DIMENSION | 75*53*22.7mm (L*W*H) | |||||||||
| PACKING | 138g;100pcs/14.8Kg/0.83CUFT[(Blank) type or (Blank) DA type],1.04CUFT(W type or WDA type) | |||||||||
Meanwell LDH-45 Series Features
l DC/DC step-up converter
l Constant current output: 350mA to 1 050mA
l Wide output LED string voltage up to 126VDC
l High efficiency up to 95%
l Built. -in EMI filter, comply with BS EN/EN55015 without additional input filter and capacitors
l PWM + analog dimming and remote ON/OFF control [(Blank) type or W type]
l DALI dimming [(Blank) DA type or WDA type]
l Protections: Short circuit 1 Over voltage 1 Under voltage
l Cooling by free air convection
l Fully encapsulated
l 3 years warranty
Meanwell LDH-45 Series Mechanical Diagram
More Information
| Brand | Meanwell |
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