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LDDS-H
4.12
Details
Meanwell LDDS-H Series is 45W DC-DC Step-Down LED driver featuring constant current output in compact size. At the same time, the entire series operates from 12~ 56VDC and offers models with different rated current ranging between 250mA and 1000mA. What’s more, the efficiency reaches high up to 96%, and the 94V-0 flame retardant plastic case with fully-potted enhances the heat dissipation, allowing LDDS-H to fit for classⅢcommercial track light or DC bus lighting application. LDD, LDB, LDH series are all DC-DC constant current output LED drivers, LDD is step-down type, LDH is step-up type, and LDB is buck-boost type model. The packaging forms have three forms: pin type, lead type and SMD chip type, which is convenient for various application scenarios. Considering its longevity, high reliability and low cost, Meanwell LDDS-H Series serves as an ideal solution for driving illumination LED
Meanwell LDDS-H Series Encoding
| LDDS | Series Name |
| 250 H | Output Current ( 250/300/350/500/700/1000mA) |
| W | Wire Style |
| B | Blank: Remote ON/OFF Control |
| B: 3 in 1 Dimming function |
Meanwell LDDS-H Series Model Specifications
| ORDER NO. | LDDS-250H | LDDS-300H | LDDS-350H | LDDS-500H | LDDS-700H | LDDS-1000H | |
| OUTPUT | CURRENT RANGE | 250mA | 300mA | 350mA | 500mA | 700mA | 1000mA |
| VOLTAGE RANGE | 2-45VDC | ||||||
| CURRENT ACCURACY (Typ.) | ±5% at 48VDC input (or 24VDC) | ||||||
| RIPPLE & NOISE (max.) | 150mVp-p | 150mVp-p | 200mVp-p | 350mVp-p | 350mVp-p | 350mVp-p | |
| SWITCHING FREQENCY | 40KHz ~ 1000KHz | ||||||
| EXTERNAL CAPACITANCE LOAD (max) | 2.2uF | ||||||
| Input | VOLTAGE RANGE | 12 ~ 56VDC | |||||
| EFFICIENCY (Typ.) | 94.00% | 95.00% | 96.00% | ||||
| DC CURRENT Full load | 200mA | 250mA | 300mA | 400mA | 570mA | 820mA | |
| DC CURRENT No load | 6mA | ||||||
| FILTER | Capacitor | ||||||
| REMOTE ON/OFF & 3 IN 1 DIMMING | REMOTE ON/OFF | Leave open if not use | |||||
| Power ON with dimming: DIM ~ -Vin >2.5 ~ 15VDC or open circuit | |||||||
| Power OFF : DIM ~ -Vin < 0.3VDC or short | |||||||
| PWM FREQUENCY | 100 ~ 1KHz (4mA at PWM dimming off) | ||||||
| 3 IN 1 DIMMING | 0 ~ 10V / PWM / Resistor Dimming | ||||||
| PROTECTION | SHORT CIRCUIT | Regulated at rated output current | |||||
| Protection type: Can be continued, recovers automatically after fault condition is removed | |||||||
| OVER TEMPERATURE | Tj 150℃typically(IC1) detect on main control IC | ||||||
| Protection type : Shut down, recovers automatically after temperature goes down | |||||||
| ENVIRONMENT | WORKING TEMP. | -40 ~ + 55℃ (Refer to derating curve) @ full load | |||||
| WORKING HUMIDITY | 20% ~ 90% RH non-condensing | ||||||
| STORAGE TEMP., HUMIDITY | -55 ~ +125℃, 10 ~ 95% RH | ||||||
| TEMP. COEFFICIENT | ±0.03% /℃ | ||||||
| VIBRATION | 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes | ||||||
| OPERATING CASE TEMP. (max.) | 90℃ | ||||||
| SAFETY & EMC | SAFETY STANDARDS | EAC TP TC 020/2011 approved | |||||
| EMC EMISSION | Compliance to BS EN/EN55015, EAC TP TC 020 | ||||||
| EMC IMMUNITY | Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, criteria A, EAC TP TC 020 | ||||||
| Others | MTBF | 650Khrs min. MIL-HDBK-217F (25℃) | |||||
| DIMENSION | 47*12*7mm or 1.85"*0.47"*0.28" inch (L*W*H) | ||||||
| WEIGHT | LDDS-HW: 9.5g, 36pcs/box, 0.43kg/box. 12 box per carton/6kg LDDS-HWB: 9.4g, 36pcs/box, 0.43kg/box. 12 box per carton/6kg |
||||||
| POTTING MATERIAL | Expoxy (UL94-V0) | ||||||
Meanwell LDDS-H Series Features
l DC/DC step-down converter
l Constant current output: 250mA to 1000mA
l Wide input voltage: 12~56VDC (48V typ.)
l Wide output LED forward string voltage: 2 ~ 45VDC
l High efficiency up to 96%
l Built-in EMI filter, comply with BS EN/EN55015
l 3 in 1 dimming and remote ON/OFF control.
l Protections: Short circuit/Over temperature/Over current
l Cooling by free air convection
l Compact size and Fully encapsulated
l Suitable for driving illumination LED
l 5 years warranty
Meanwell LDDS-H Series Applications
l DC battery source lighting
l Portable lighting
l Commercial lighting
l DC 48V Track lighting
l DC 24V landscape lighting
l For STUCCHI track adapters
l For class Ⅲ application (SELV)
Meanwell LDDS-H Series Mechanical Diagram
More Information
| Brand | Meanwell |
|---|
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