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Mean Well NLDD-1400H DC/DC LED Driver CC 1400mA - Step-down

Name: Mean Well NLDD-1400H DC/DC LED Driver CC 1400mA - Step-down
Brand: Mean Well
SKU: NLDD-1400H
Price: 5.34 USD
Availability: InStock

constant currentstep downhigh efficiency up to 97%IP67pin style

SKU NLDD-1400H

$5.34 USD

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Available to order

Overview

NLDD-1400H is the model of this series: typical efficiency 95% at full load and 36VDC/48VDC input.

NLDD-H series is a 60W DC/DC LED driver featuring constant current output. NLDD-H operates from 10~56VDC and offers models with different rated current 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 classⅢ or DC bus lighting application.

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
For class Ⅲ application(SELV)
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

Specifications

NLDD-1400HSpecifications from the official datasheet (2024-10-16 edition)

OUTPUT

CURRENT RANGE: 1400mA
VOLTAGE RANGE^Note.4: 6 ~ 46VDC
CURRENT ACCURACY (Typ.): ±5% at 48VDC input
RIPPLE & NOISE(max.)^Note.2: 350mVp-p
SWITCHING FREQENCY: 200KHz

INPUT

VOLTAGE RANGE: 10 ~ 56VDC (59VDC Max.)
EFFICIENCY (max.): 95% at full load and 36VDC/48VDC input
DC CURRENT Full load^Note.3: 1360mA
DC CURRENT 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)

Test conditions and notes7

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

Technical drawings

NLDD-1400H Mechanical Specification — Mechanical Specification

NLDD-1400H Derating Curve — Derating Curve

NLDD-1400H PWM Dimming Control — PWM Dimming Control

NLDD-1400H Efficiency VS Output Voltage — Efficiency VS Output Voltage

Typical applications

DC battery source lighting
Portable lighting
Commercial lighting
DC 48V Track lighting
DC 24V landscape lighting

Downloads

Certificates3

Mean Well NLDD-H-EMC Certificate PDF Download

Mean Well NLDD-CE-dec Certificate PDF Download

Mean Well NLDD-UK-dec Certificate PDF Download

Test reports1

Mean Well NLDD-1400H Test Report PDF Download

FAQ

Can I use the NLDD-1400H for high-current LED downlights?

Yes, when the downlight is designed for constant current operation and its LED load stays inside the 6-46V constant-current range. This model is rated at 60W and is intended for constant current applications rather than constant-voltage lighting products.

Is the NLDD-1400H suitable for small LED arrays that need a step-down driver?

It can be suitable for small constant current LED arrays when the source is within 10-56VDC and the LED load remains within the 6-46V constant-current range. Because it is a step-down design, the system input also needs to align with that operating window.

Can this model be used for rugged signage or enclosed LED modules?

The NLDD-1400H operates from -40°C to +50°C, which supports use in demanding environmental conditions. It is fully potted with epoxy (UL94-V0) but does not have an IP rating, so it must be installed in a suitable enclosure. It is still important that the LED module itself is a constant current load and fits within the driver's 60W and 6-46V limits.

What makes an LED load compatible with the NLDD-1400H?

The LED load must be intended for constant current operation and its total forward voltage must fall within the 6-46V constant-current output range. The number of LEDs depends on the forward voltage of each LED, so compatibility is based on the full load voltage rather than a specific LED quantity.

How does the NLDD-1400H compare with the other H and HW versions?

All listed siblings are 60W models, but current and constant-current range vary. The 1400H and 1400HW are 1.4A with a 6-46V CC range, the 1200H and 1200HW are 1.2A with a 6-46V CC range, and the 1050H/1050HW, 700H/700HW, 500H/500HW, and 350H/350HW use a 6-52V CC range at 1.05A, 0.7A, 0.5A, and 0.35A.

Payment & Security

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Mean Well HLG-240H-24A Power Supply 240W 24V - Adjustable 10A	240W	24V	10A	IP65	View
Mean Well HLG-240H-12 Power Supply 192W 12V 16A	192W	12V	16A	IP67	View
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Mean Well ODLC-65A-1400 Power Supply 65W 1400mA (Auxiliary DC output)	64.4W	46V	1.4A	IP67	View
Mean Well ODLC-65A-1050 Power Supply 65W 1050mA (Auxiliary DC output)	65.1W	62V	1.05A	IP67	View
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