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

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	All parameters are specified at normal input(48VDC), rated load, 25℃ 70% RH ambient. Ripple & noise are measured at 20MHz by using a 12″ twisted pair terminated with a 0.1μf capacitor. 3.Test condition: 48VDC input. Output voltage will always step down by 4 volts from input DC voltage. The output of NLDD-H should not be connected to the input of the same unit or output from other sources. 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

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

NOTE: Pin tolerance ±0.05mm

Blank type(NLDD-1200~1400H):

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

NOTE: Pin tolerance ±0.05mm

W type(NLDD-350~1400HW):

NOTE: All wires UL1569 22AWG

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

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 NLDD-H series DC-DC Constant Current Step Down LED Driver, NLDD-H series, DC-DC Constant Current Step Down LED Driver, DC Constant Current Step Down LED Driver, Constant Current Step Down LED Driver, Current Step Down LED Driver, Step Down LED Driver, Down LED Driver, LED Driver, Driver
	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

References

User Manual

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

Features And Applications

Description

SPECIFICATION

Efficiency VS Output Voltage

PACKING

Documents / Resources

References

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