MEAN WELL NLDD-H Series Constant Current Step Down LED Driver
Specifications:
- Model: NLDD-H series
- Current Range: 350mA, 500mA, 700mA, 1050mA, 1200mA, 1400mA
- Voltage Range: 6 ~ 52VDC
- Output Ripple & Noise: 150mVp-p
- Switching Frequency: 200KHz
- Input Voltage Range: 10 ~ 56VDC (59VDC Max.)
- Efficiency: 96% at full load and 36VDC/48VDC input
- PWM Dimming & ON/OFF Control: Yes
- Quiescent Input Current in Shutdown Mode: 2mA at PWM dimming OFF at 48VDC input
- Working Temperature: -40 ~ +50°C
- Working Humidity: 20% ~ 90% RH non-condensing
- Safety Standards: LVD BS EN/EN61347-1, BS EN/EN61347-2-13; IEC61347 and EAC TP TC 004 approved
- EMC Emission: Compliance to BS EN/EN55015, BS0 EN/EN61547
- EMC Immunity: Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, EAC TP TC 020
- DIMENSION WEIGHT: 32.1*20.5*12.5mm or 1.26*0.8*0.49 inch (L*W*H)
- POTTING MATERIAL: Expoxy(UL94-V0)
Product Usage Instructions
Installation:
- Ensure the input voltage is within the specified range.
- Connect the LED load to the output terminals of the driver.
- Securely mount the driver in a well-ventilated area to prevent overheating.
Dimming Control:
To dim the LEDs connected to the driver, apply a PWM signal within the frequency range of 100 ~ 1KHz to the DIM pin according to the provided PWM dimming specifications.
Safety Precautions:
- Avoid short-circuiting the output terminals.
- Do not exceed the maximum temperature and humidity limits during operation.
- Refer to the safety standards for proper compliance and installation.
Frequently Asked Questions (FAQ):
- Q: Can I connect multiple LED loads to a single NLDD-H driver?
A: It is recommended to avoid connecting multiple LED loads to a single driver to prevent overloading and ensure optimal0 performance. - Q: How do I troubleshoot if the driver does not power on?
A: Check the input voltage, and connections, and ensure that the DIM pin is receiving the correct signal for power-on operation. If issues persist, refer to the warranty statement or contact customer support.
Features
- DC/DC step-down converter
- Constant current output: 350mA to 1400mA
- Wide input voltage: 10 ~ 56VDC(59VDC Max.)
- Wide output LED forward voltage: 6 ~ 52VDC
- High efficiency up to 96%
- Comply with BS EN/EN61347 and BS EN/EN55015 regulation
- Built-in PWM and remote ON/OFF control
- Protections: Short circuit / Over temperature
- Cooling by free air convection
- Fully encapsulated and compact site
- Suitable for driving illumination LED
- 3 years warranty
Description
NLDD-H series is a 60W DC/DC LED drive featuring constant current output. NLDD-H operates from 10~56VDC and offers models with different rated currents ranging between 350mA and 1400mA. With the high efficiency up to 96%, The 94V-0 flame retardant plastic case the fully-potted silicone to enhance the heat dissipation allows this series to fit for class Ill or DC bus lighting applications.
Applications
- DC battery source lighting
- Portable lighting
- Commercial lighting
- DC 48V Track lighting
- DC 24V landscape lighting
- For < I class Ill application(SELV)
GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx
Model Encoding
SPECIFICATION
| ORDER NO. | NLDD-350H | NLDD-500H | NLDD-700H | NLDD-1050H | NLDD-1200H | NLDD-1400H | ||
|
OUTPUT | CURRENT RANGE | 350mA | 500mA | 700mA | 1050mA | 1200mA | 1400mA | |
| VOLTAGE RANGE Note.4 | 6 ~ 52VDC | 6 ~ 46VDC | ||||||
| CURRENT ACCURACY (Typ.) | ±5% at 48VDC input | |||||||
| RIPPLE & NOISE(max.) Note.2 | 150mVp-p | 150mVp-p | 200mVp-p | 350mVp-p | 350mVp-p | 350mVp-p | ||
| SWITCHING FREQENCY | 200KHz | |||||||
|
INPUT | VOLTAGE RANGE | 10 ~ 56VDC (59VDC Max.) | ||||||
| EFFICIENCY (max.) | 96% at full load and 36VDC/48VDC input | 95% at full load and 36VDC/48VDC input | ||||||
| DC CURRENT | Full load Note.3 | 350mA | 490mA | 700mA | 1100mA | 1200mA | 1360mA | |
| No load | 5mA | |||||||
|
PWM DIMMING & ON/OFF CONTROL |
REMOTE ON/OFF | Leave open if not use | ||||||
| Power ON with dimming: DIM ~ -Vin >2.5 ~ 5VDC or open circuit | ||||||||
| Power OFF : DIM ~ -Vin < 0.8VDC or short | ||||||||
| PWM FREQUENCY | 100 ~ 1KHz | |||||||
| QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(max.) | 2mA at PWM dimming OFF at 48VDC input | |||||||
|
PROTECTION | SHORT CIRCUIT | Regulated at rated current | ||||||
| Protection type: Can be continued, recovers automatically after fault condition is removed | ||||||||
| OVER TEMPERATURE | Tj 165℃ typically(IC1) detect on main control IC | |||||||
| Protection type : Shut down, recovers automatically after temperature goes down | ||||||||
|
ENVIRONMENT | WORKING TEMP. | -40 ~ + 50℃(Refer to derating curve) | ||||||
| WORKING HUMIDITY | 20% ~ 90% RH non-condensing | |||||||
| STORAGE TEMP., HUMIDITY | -40 ~ +85℃, 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℃ | |||||||
| 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;IEC61347 and EAC TP TC 004 approved | ||||||
| EMC EMISSION | Compliance to BS EN/EN55015, BS EN/EN61547 | |||||||
| EMC IMMUNITY | Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, EAC TP TC 020 | |||||||
|
OTHERS | MTBF | 29984.3K hrs min. Telcordia SR-332 (Bellcore) 2881.6Khrs min. MIL-HDBK-217F (25℃) | ||||||
| DIMENSION | 32.1*20.5*12.5mm or 1.26″*0.8″*0.49″ inch (L*W*H) | |||||||
| WEIGHT | NLDD-H:15.6g ; NLDD-HW:18g (Please refer to Page 6 for packing) | |||||||
| POTTING MATERIAL | Expoxy(UL94-V0) | |||||||
| NOTE | 1. All parameters are specified at normal input(48VDC), rated load, 25℃ 70% RH ambient. 2. Ripple & noise are measured at 20MHz by using a 12″ twisted pair terminated with a 0.1μf capacitor. 3.Test condition: 48VDC input. 4. Output voltage will always step down by 4 volts from input DC voltage. 5. The output of NLDD-H should not be connected to the input of the same unit or output from other sources. 6. The power supply is regarded as a part of the components in the system, and the final EMI test needs to be tested with the final device. If an additional EMI filter circuit is required to meet the electromagnetic compatibility requirements, please refer to the EMC test report for details. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf) 7. Please refer to the warranty statement on MEAN WELL’s website at http://www.meanwell.com ※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx | |||||||
Mechanical Specification
| Pin No. | Comment | |
| 1,2 | -Vin | Don’t connect to -Vout |
| 11,12 | -Vout | LED – Connection |
| 13,14 | +Vout | LED + Connection |
| 22 | PWM DIM | ON/OFF and PWM Dimming (Leave open if not used) |
| 23,24 | +Vin | DC Supply |
| others | N.C | No connection |
| Pin No. | Comment | |
| 1,2 | -Vin | Don’t connect to -Vout |
| 11,12 | -Vout | LED – Connection |
| 13,14 | +Vout | LED + Connection |
| 21 | PWM DIM | ON/OFF and PWM Dimming (Leave open if not used) |
| 23,24 | +Vin | DC Supply |
| others | N.C | No connection |
| Pin No. | Comment | |
| 2 | -Vin (Black) | Don’t connect to -Vout |
| 11 | -Vout (Blue) | LED – Connection |
| 14 | +Vout (Yellow) | LED + Connection |
| 21 | PWM DIM (White) | ON/OFF and PWM Dimming (Leave open if not used) |
| 23 | +Vin (Red) | DC Supply |
| others | N.C | No connection |
Derating Curve
PWM Dimming Control
- Short circuit PWM PIN can realize dimming turn off.
- During PWM dimming operation, the output current will change to PWM style
Standard Application
Efficiency VS Output Voltage
PACKING
Documents / Resources
 | MEAN WELL NLDD-H Series Constant Current Step Down LED Driver [pdf] Owner's Manual NLDD-350H, NLDD-500H, NLDD-700H, NLDD-1050H, NLDD-1200H, NLDD-1400H, NLDD-H Series Constant Current Step Down LED Driver, NLDD-H Series, Constant Current Step Down LED Driver, Step Down LED Driver, LED Driver |