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Mean Well NLDD-350H DC/DC LED Driver CC 350mA - Step-down

Name: Mean Well NLDD-350H DC/DC LED Driver CC 350mA - Step-down
Brand: Mean Well
SKU: NLDD-350H
Price: 5.34 USD
Availability: InStock

constant currentstep downhigh efficiency up to 97%IP67pin style

SKU NLDD-350H

$5.34 USD

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Available to order

Overview

NLDD-350H is the model of this series: typical efficiency 96% 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-350HSpecifications from the official datasheet (2024-10-16 edition)

OUTPUT

CURRENT RANGE: 350mA
VOLTAGE RANGE^Note.4: 6 ~ 52VDC
CURRENT ACCURACY (Typ.): ±5% at 48VDC input
RIPPLE & NOISE(max.)^Note.2: 150mVp-p
SWITCHING FREQENCY: 200KHz

INPUT

VOLTAGE RANGE: 10 ~ 56VDC (59VDC Max.)
EFFICIENCY (max.): 96% at full load and 36VDC/48VDC input
DC CURRENT Full load^Note.3: 350mA
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-350H Mechanical Specification — Mechanical Specification

NLDD-350H Derating Curve — Derating Curve

NLDD-350H PWM Dimming Control — PWM Dimming Control

NLDD-350H 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-350H Test Report PDF Download

FAQ

Can I use the NLDD-350H to drive a low-current LED downlight module?

Yes, if the LED downlight is designed for constant current operation at 350mA. This is a 60W step-down constant current driver, so it fits LED loads that need regulated current rather than a constant voltage supply.

Is the NLDD-350H suitable for signage modules or small LED arrays?

It can be a fit for signage modules or small LED arrays when the LEDs are intended to run from a 350mA constant current source. Because it is a step-down driver with a 10-56VDC input and 6-52VDC output range, the LED load has to stay within that operating window.

Can this driver be used in compact lighting assemblies where space is limited?

The NLDD-350H is very compact at 32.1 × 20.5 × 12.5 mm and weighs 0.0156 kg, which helps in small integrated lighting products. It is still a 60W constant current driver, so the electrical match matters as much as the physical size.

How do I know if my LED load is compatible with the NLDD-350H?

This model is for constant current LED loads, not constant voltage LED products. Its constant current output is 350mA, and the output voltage range is 6-52VDC. The number of LEDs it can run depends on the forward voltage of each LED in the load rather than on a fixed LED count.

How does the NLDD-350H compare with other NLDD H-series drivers?

Within this 60W series, the listed siblings are NLDD-350HW at 350mA with 6-52VDC, NLDD-500H and NLDD-500HW at 500mA with 6-52VDC, NLDD-700H and NLDD-700HW at 700mA with 6-52VDC, NLDD-1050H and NLDD-1050HW at 1050mA with 6-52VDC, and NLDD-1200H, NLDD-1200HW, NLDD-1400H, and NLDD-1400HW with 6-46VDC at 1200mA or 1400mA. The NLDD-350H is the pin-style 350mA option in that family.

Payment & Security

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Mean Well HLG-120H-C350A Power Supply 150.5W 350mA - Adjustable	150.5W	430V	0.35A	IP65	View
Mean Well HLG-60H-24AB Power Supply 60W 24V - Adjustable and Dimmable 2.5A	60W	24V	2.5A	IP65	View
Mean Well APC-16-350 Power Supply 16W 350mA	16.8W	48V	0.35A	IP42	View
Mean Well XLN-60-48-B LED Driver 60W 48V IP67, 3 in 1 Dimming	60W	48V	1.25A	IP67	View
Mean Well XLG-200-12-AB Power Supply 192W 12V - Adjustable and Dimmable 16A	192W	12V	16A	IP67	View
Mean Well LPC-60-1750 Power Supply 60W 1750mA	59.5W	34V	1.75A	IP67	View
Mean Well LDH DC/DC LED Driver CC 1050mA - Step-up - with Wire	63W	60V	1.05A	IP20	View
Mean Well HLG-480H-24B Power Supply 480W 24V- Dimmable 20A	480W	24V	20A	IP67	View
Mean Well HLG-320H-12 Power Supply 264W 12V 22A	264W	12V	22A	IP67	View
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
Mean Well HLG-150H-24B Power Supply 150W 24V- Dimmable 6.3A	151.2W	24V	6.3A	IP67	View
Mean Well HLG-150H-24 Power Supply 150W 24V 6.3A	151.2W	24V	6.3A	IP67	View
Mean Well HLG-120H-C350B Power Supply 150.5W 350mA - Dimmable	150.5W	430V	0.35A	IP65	View
Mean Well HLG-120H-C350AB Power Supply 150.5W 350mA - Adjustable and Dimmable	150.5W	430V	0.35A	IP65	View
Mean Well ELG-240-54 Power Supply 240W 54V 4.45A	240.3W	54V	4.45A	IP67	View
Mean Well ELG-100-48A Power Supply 96W 48V - Adjustable 2A	96W	48V	2A	IP65	View
Mean Well APC-25-700 Power Supply 25W 700mA	25.2W	36V	0.7A	IP42	View
TD-50-500-1750-E1P1 50W 500-1750mA CC Triac LED Driver - Selectable Output	—	—	—	Indoor	View
LTECH DALI-50-500-1750-F1P1 50W 500mA ~ 1750mA CC Dali LED Driver - Selectable Output	50W	58V	0.5A	Indoor	View
LTECH DALI-36-200-1200-U1P1 36W 200mA ~ 1200mA CC Dali LED Driver - Selectable Output	36W	58V	1.2A	Indoor	View
LTECH DALI-10-100-400-F1P1 10W 100mA ~ 400mA CC Dali LED Driver - Selectable Output	10W	47V	0.1A	Indoor	View
Mean Well ODLC-65A-1750 Power Supply 65W 1750mA(Auxiliary DC output)	63W	36V	1.75A	IP67	View
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
Mean Well ODLC-65-1750 Power Supply 65W 1750mA, Dimmable	63W	36V	1.75A	IP67	View
Mean Well ODLC-65-1400 Power Supply 65W 1400mA, Dimmable	64.4W	46V	1.4A	IP67	View
Mean Well ODLC-65-1050 Power Supply 65W 1050mA, Dimmable	65.1W	62V	1.05A	IP67	View
Mean Well ODLC-45A-500 Power Supply 45W 500mA (Auxiliary DC output)	45W	90V	0.5A	IP67	View
Mean Well ODLC-45A-1400 Power Supply 45W 1400mA (Auxiliary DC output)	44.8W	32V	1.4A	IP67	View
Mean Well ODLC-45A-1050 Power Supply 45W 1050mA (Auxiliary DC output)	45.15W	43V	1.05A	IP67	View
Mean Well ODLC-45-500DA Power Supply 45W 500mA, DALI	45W	90V	0.5A	IP67	View
Mean Well ODLC-45-500 Power Supply 45W 500mA, Dimmable	45W	90V	0.5A	IP67	View
Mean Well ODLC-45-1400DA Power Supply 45W 1400mA, DALI	44.8W	32V	1.4A	IP67	View
Mean Well ODLC-45-1400 Power Supply 45W 1400mA, Dimmable	44.8W	32V	1.4A	IP67	View
Mean Well ODLC-45-1050DA Power Supply 45W 1050mA, DALI	45.15W	43V	1.05A	IP67	View
Mean Well ODLC-45-1050 Power Supply 45W 1050mA, Dimmable	45.15W	43V	1.05A	IP67	View
Mean Well IDLC-65A-1750 Power Supply 65W 1750mA(Auxiliary DC output)	63W	36V	1.75A	IP20	View
Mean Well IDLC-65A-1400 Power Supply 65W 1400mA (Auxiliary DC output)	64.4W	46V	1.4A	IP20	View
Mean Well IDLC-65A-1050 Power Supply 65W 1050mA (Auxiliary DC output)	65.1W	62V	1.05A	IP20	View
Mean Well IDLC-65-1750DA Power Supply 65W 1750mA, DALI	63W	36V	1.75A	IP20	View
Mean Well IDLC-65-1750 Power Supply 65W 1750mA, Dimmable	63W	36V	1.75A	IP20	View
Mean Well IDLC-65-1400DA Power Supply 65W 1400mA, DALI	64.4W	46V	1.4A	IP20	View
Mean Well IDLC-65-1400 Power Supply 65W 1400mA, Dimmable	64.4W	46V	1.4A	IP20	View
Mean Well IDLC-65-1050DA Power Supply 65W 1050mA, DALI	65.1W	62V	1.05A	IP20	View
Mean Well IDLC-65-1050 Power Supply 65W 1050mA, Dimmable	65.1W	62V	1.05A	IP20	View
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LTECH TD-20-200-700-EFP1 20W 200mA ~ 700mA CC Triac LED Driver - Selectable Output	20W	45V	0.2A	Indoor	View
LTECH TD-15-150-700-EFP1 15W 150mA ~ 700mA CC Triac LED Driver - Selectable Output	15W	45V	0.15A	Indoor	View
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