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LDH-25
7.03
Details
Meanwell LDH-25 Series is 25W DC-DC Step-Up LED drive highlighting constant current output. At the same time, the entire series could operate from 9.5~ 32VDC and offer models with different rated current ranging between 250mA and 700mA. As the efficiency reaches high up to 95.5% with 94V-0 flame retardant plastic case, and fully-potted silicone enhancing the heat dissipation. these allow the products to fit solar LED street light. What’s more, the series is equipped with various function options such as dimming methodologies. Considering its long lifetime, high efficiency and excellent quality, Meanwell LDH-25 Series serves as an ideally suitable solution for the optimal design flexibility for DC source LED lighting system.
Meanwell LDH-25 Series Encoding
| LDH | Series Name |
| 25 | Rated Wattage |
| 350 | Output Current ( 250/350/500/700mA) |
| W | Blank: Pin mounted Style |
| W: Lead Wire Style |
Meanwell LDH-25 Series Model Specifications
| Model | LDH-25-250□ | LDH-25-350□ | LDH-25-500□ | LDH-25-700□ | |
| OUTPUT | RATED CURRENT | 250mA | 350mA | 500mA | 700mA |
| CURRENT ACCURACY (Typ.) | ±5% at 12VDC input and 24 VDC Input | ||||
| VOLTAGE RANGE | 12.5-84VDC | 12.5-72VDC | 12.5-50VDC | 12.5-36VDC | |
| RATED POWER | 21W | 25.2W | 25W | 25.2W | |
| CURRENT RIPPLE | 5%( at rated current) | ||||
| Input | VOLTAGE RANGE | 9.5~32VDC | |||
| EFFICIENCY (Typ) | 91.5%/12V '94%/24V | 92%/12V 95%/24V | 91.5%/12V 94%/24V | 92.5%/12V 95.5%/24V | |
| DC CURRENT (Typ) | 2.5A/12VDC, 1.2A/24VDC | ||||
| DIMMING | DIMMING FUNCTION | Leave open if not used | |||
| 1KHz-3KHz 10V PWM signal or 0-10V DC input | |||||
| QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.) |
7mA when PWM dimming OFF at12VDC | ||||
| PROTECTION | SHORT CIRCUIT | Output short circuit, the power supply will be damaged | |||
| OVER VOLTAGE | 85-120V | 73-100V | 51-80V | 37-60V | |
| NO LOAD | Output voltage rise to OVP, and drop equal to input voltage, re-power to recovery | ||||
| 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 | 12369.5K hrs min. Telcordia TR/SR-332(Bellcore); 896.4Khrs min. MIL-HDBK-217F (25℃) | |||
| DIMENSION | 52.4*27.2*24mm (L*W*H) | ||||
| PACKING | Pin mounted style: 50g, 200pcs/11Kg/0.89CUFT; Lead wire style: 57g, 200pcs/12.4kg/0.98CUFT | ||||
Meanwell LDH-25 Series Features
l Wide DC input voltage operation 9.5~32V
l DC/DC step-up converter
l Constant current output: 250mA to 700mA
l Wide output LED forward voltage up to 84VDC
l High efficiency up to 95.5%
l 2 in1dimming (0- 10V, PWM)
l Protections: Short circuit/Over voltage
l Cooling by free air convection
l Fully encapsulated
l 3 years warranty
Meanwell LDH-25 Series Applications
l DC battery source lighting
l Portable lighting
l LED solar street lighting
l LED greehouse lighting
l LED Low-bay lighting
Meanwell LDH-25 Series Mechanical Diagram
More Information
| Brand | Meanwell |
|---|
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