MEAN WELL NLDD-H series DC-DC Constant Current Step Down LED Driver Owner’s Manual

MEAN WELL NLDD-H series DC-DC Constant Current Step Down LED Driver

Features And Applications

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

Applications

• DC battery source lighting
• Portable lighting
• Commercial lighting
• DC 48V Track lighting
• DC 24V landscape lighting
• For class III application(SELV)

GTIN CODE

• MW Search: https://www.meanwell.com/serviceGTIN.aspx

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 current ranging between 350mA and 1400mA. With the high efficiency up to 96%, The 94V-O flame retardant plastic case the fully-potted silicone to enhance the heat dissipation allows this series to fit for class III or DC bus lighting application.

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| 32.120.512.5mm or 1.26″0.8″0.49″ inch (LWH)
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.
3. Output voltage will always step down by 4 volts from input DC voltage.
4. The output of NLDD-H should not be connected to the input of the same unit or output from other sources.
5. 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. 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

Blank type(NLDD- 350~1050H):

• Unit: mm (inch)

Pin Configuration

22

|

PWM DIM

| ON/OFF and PWM Dimming

(Leave open if not used)

23,24| +Vin| DC Supply
others| N.C| No connection

NOTE: Pin tolerance ±0.05mm

Blank type(NLDD-1200~1400H):

21

|

PWM DIM

| ON/OFF and PWM Dimming

(Leave open if not used)

23,24| +Vin| DC Supply
others| N.C| No connection

NOTE: Pin tolerance ±0.05mm

W type(NLDD-350~1400HW):

NOTE: All wires UL1569 22AWG

(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

• H: >2.5~5VDC or open circuit
• L: <0.8VDC or short

Efficiency VS Output Voltage

24VDC input

36VDC input

48VDC input

PACKING

User’s Manual

Documents / Resources

| MEAN WELL NLDD-H series DC-DC Constant Current Step Down LED Driver [pdf] Owner's Manual
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| MEAN WELL NLDD-H Series DC-DC Constant Current Step-Down LED Driver [pdf] Owner's Manual
NLDD-H Series DC-DC Constant Current Step-Down LED driver, NLDD-H Series, DC- DC Constant Current Step-Down LED driver, Constant Current Step-Down LED driver, Current Step-Down LED driver, Step-Down LED driver, LED driver

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