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LDD-350H
5.06
Details
Meanwell LDD-350H is DC-DC Constant Current Step-Down LED driver with 350mA2-52VDC150mVp-p40KHz~1000KHz2.2uF9~56VDC47~63Hz320mA5mA. The item is designed in compact size working from 9~ 56VDC with rated current 350mA. The efficiency reaches high to 97%, and operate at -40℃~+70℃ under natural air cooling and heat dissipation conditions. Based on Built-in EMI filter and PWM and remote ON/OFF control, LDD-350H complies with BS EN/EN55015 and FCC part15 without additional input filter and capacitors. Furthermore, the unit is supplied with various protections such as Short circuit and Over temperature. 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. Thanks to its long lifetime, high reliability and low cost, Meanwell LDD-350H is an ideally suitable solution for driving illumination LED.
Meanwell LDD-350H Specifications
| LDD-350H-W | LDD-1200H w△ |
| Blank: Pin Style | Blank: Pin Style |
| W: Wire Style | W: Wire Style |
| S: SMD Style |
| ORDER NO. | LDD-350H□ | |
| OUTPUT | CURRENT RANGE | 350mA |
| VOLTAGE RANGE | 2-52VDC | |
| CURRENT ACCURACY (Typ.) | ±3% at 24VDC input ; ±4% at 48VDC input for LDD-H/HW ; ±5% for LDD-HS | |
| RIPPLE & NOISE (max.) | 150mVp-p | |
| SWITCHING FREQENCY | 40KHz ~ 1000KHz | |
| EXTERNAL CAPACITANCE LOAD (max) | 2.2uF | |
| Input | VOLTAGE RANGE | 9 ~ 56VDC |
| FREQUENCY RANGE | 47 ~ 63Hz | |
| EFFICIENCY (max.) | 97% at full load and 36VDC/48VDC input for LDD-H/HW ; 96% at full load and 36VDC/48VDC input for LDD-HS | |
| DC CURRENT Full load | 320mA | |
| DC CURRENT No load | 5mA | |
| FILTER | Capacitor | |
| PWM DIMMING & ON/OFF CONTROL | REMOTE ON/OFF | Leave open if not use |
| Power ON with dimming: DIM ~ -Vin >2.5 ~ 6VDC or open circuit | ||
| Power OFF : DIM ~ -Vin < 0.8VDC or short | ||
| PWM FREQUENCY | 100 ~ 1KHz | |
| QUIESCENT INPUT CURRENT IN SHUTDOWN MODE (max.) | 1mA at PWM dimming OFF and 24VDC input | |
| 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 ~ + 85℃(Refer to derating curve) |
| WORKING HUMIDITY | 20% ~ 90% RH non-condensing for LDD-H/HW ; 20%~85% RH non-condensing for LDD-HS | |
| 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.) | 100℃ | |
| EMC | SAFETY STANDARDS | EAC TP TC 020/2011 approved |
| EMC EMISSION | Compliance to BS EN/EN55015, FCC part 15 class B, 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 | 1000Khrs min. MIL-HDBK-217F (25℃) |
| DIMENSION | 31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H) for LDD-H/HW ; 31.8*20.3*11.4mm or 1.25"*0.8"*0.45" inch (L*W*H) for LDD-HS | |
| WEIGHT | LDD-H:15.6g ; LDD-HW:18g ; LDD-HS:12.8g | |
| POTTING MATERIAL | Expoxy(UL94-V0) for LDD-H/HW ; without potted for LDD-HS | |
Meanwell LDD-350H Features
l Compact size
l 3 years warranty
l Low cost, high reliability
l DC/DC step-down converter
l Constant current output: 300mA to 1500mA
l Wide input voltage: 9 ~ 56VDC
l Wide output LED string voltage: 2 ~ 52VDC
l High efficiency up to 97%
l Built-in PWM and remote ON/OFF control
l Protections: Short circuit/ Over temperature
l Cooling by free air convection
l Fully encapsulated with IP67 level for pin and wire style
l Non-potted, optional conformal coating for SMD style (Order No.: LDD-350- 1000! HSC)
l Suitable for driving illumination LED
l Built-in EMI filter, comply with BS EN/EN55015 and FCC part15 without additional input filter and capacitors
Meanwell LDD-350H Mechanical Diagram
More Information
| Brand | Meanwell |
|---|
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