MEAN WELL LDH-45 series DC-DC Step-Up Constant Current LED Driver Owner’s Manual

DC-DC Step-Up Constant Current LED driver
LDH – 45 series

■ GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx

LDH-45 series DC-DC Step-Up Constant Current LED Driver

■ Features:

• DC/DC step-up converter
• Constant current output : 350mA to 1050mA
• Wide output LED string voltage up to 126VDC
• High efficiency up to 95%
• PWM + analog dimming and remote ON/OFF control (Blank) type or W type]
• DALI dimming [(Blank)DA type or WDA type]
• Protections: Short circuit / Over voltage / Under voltage
• Cooling by free air convection
• Fully encapsulated
• 3 years warranty

http://www.meanwell.com.cn/Upload/PDF/LED_EN.pdf

LDH-45 -350
=A or B; A:9~18VDC input range, B: 18~32VDC input range
=(Blank) or W or (Blank)DA or WDA ;
(Blank): PIN style, PWM + analog dimming
W: Wire style, PWM + analog dimming
(Blank)DA: PIN style, DALI dimming
WDA: Wire style, DALI dimming

SPECIFICATION

MODEL| LDH-45A-350| LDH-45A-500| LDH-45A-700| LDH- 45A-1050| LDH-458-350| LDH-458-500| LDH-4513.700| LDH- 45B-1050
---|---|---|---|---|---|---|---|---
OUTPUT| RATED CURRENT| 350mA| 500mA| 700mA| 1050mA| 350mA| 500mA| 700mA| 1050mA
CURRENT ACCURACY(Typ.)| ±5% at 12VDC input| ±5% at 24VDC input
VOLTAGE RANGE Note.2| Non-DALI| 12-86VDC| 12-86VDC| 12-64VDC| 12-43VDC| 21-126VDC| 21-86VDC| 21-64VDC| 21-43VDC
DALI| 24-86VDC| 24-86VDC| 24-64VDC| 24-43VDC| 36-126VDC| 36-86VDC| 36-64VDC| 36-43VDC
NO LOAD OUTRITVOLTAGE(max.)| 100V| 100V| 75V| 50y| 146V| 100V| 75V| 50V
RATED POWER| 30.1W| 43W| 44.8W| 45.15W| 44.1W| 43W| 44.8W| 45.15W
RIPPLE 8 NOISE (max.) Note.3| 2.5Vp-p| 2.5Vp-p| 1.9Vp-p| 1.9Vp-p| 2.5Vp-p| 1.7Vp-p| 1.2Vp-p| 1.2Vp-p
INPUT| RATED VOLTAGE| 12VDC| 24VDC
VOLTAGE RANGE Note.2| 9-18VDC| 18-32VDC
EFFICIENCY (max.)| 91%| 90%| 90%| 91%| 93%| 94%| 95%| 95%
DC CURRENT (Typ.)| 2.8A| 4.1A| 4.2A| 4.2A| 2.1A| 2.1A| 2A| 2A
PWM DIMMING
& ON/OFF CONTROL| REMOTE ONIOFF| Leave open if not used
Power ON with dimming: PWM signal >2-8VDC or open circuit, between PWM DIM and DIM-
Power OFF : PWM signal <0.5VDC or short or PWM duty is equal to 0%, between PWM DIM and DIM-
PWM DIMMING FREQUENCY| 1K-10KHz
QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.)|  7mA when PWM dimming OFF
ANALOG DIMMING &
ON/OFF CONTROL| REMOTE ON/OFF| Leave open if not used
Power on with dimming: DC input >0.25-8VDC or open circuit, between Analog DIM and DIM-
Power off : DC input <0.2VDC or short, between Analog DIM and DIM-
DIM INPUT VOLTAGE RANGE| 0.25-1.3VDC
MAX OPERATION VOLTAGE| 8V; The output current remains constant when voltage changes from 1.3V to BV
QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.)| 7mA when Analog dimming OFF
PROTECTION| SHORT CIRCUIT| Protection type : Power OFF and fuse open
OVER VOLTAGE (mat)| 100V| 100V| 75V| 50V| 146V| 100V| 75V| 50V
Protection type : Constant output voltage and shut off o/p current, recovers automatically after fault condition is removed
ENVIRONMENT| WORKING TEMP.| -40 – +70 C (Refer to Derating Curve)
WORKING HUMIDITY| 20 – 90% RH non-condensing
STORAGE TEMP., HUMIDITY| -40 – 85 C , 10 – 95% RH
TEMP. COEFFICIENT| ±0.03%/ C (0 – 50 C )
VIBRATION| 10 – 500Hz. 2G 10mintIcycle. period for 60min. each along X. Y, Z axes
SOLDERING TEMPERATURE| Wave soldering: 265-C,5s (max.): Manual soldering: 390r,3s (max.)
SAFETY & EMC| SAFETY STANDARDS| LVD BS EN/EN61347-1, BS EN/EN61347-2-13, EAC TP TC 004 approved
EMC EMISSION| Compliance to BS EN/EN55015;EAC TP TC 020
EMC IMMUNITY| Compliance to BS EN/EN61547,BS EN/EN61000-4-2,3,4,6,8; light industry level;EAC TP TC 020
OTHERS| MTBF| 12195.2K hrs min.      Telcordia SR-332 (Bellcore) ; 1179.3K hrs min.      MIL-HDBK-217F (25℃)
DIMENSION| 755322.7mm (LWH)
PACKING| 138g;100pcs/14.8Kg/0.83CUFT[(Blank) type or (Blank) DA type],1.04CUFT(W type or WDA type)
NOTE| 1. All parameters are specified at normal input(12VDC,24VDC), rated load, 25°C 70% RH ambient.
2. (Blank) type and W type output voltage must step up by 3 Volts from input DC voltage;
(Blank)DA type and WDA type output voltage must step up by 12 Volts from input DC voltage.
3. Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf parallel capacitor.
※ Product I inability Disclaimer For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx
File Name:LDH-45-SPEC 2022-11-28

■ Mechanical Specification

NOTE:PIN size tolerance 1.0ψ±0.05mm

■ Pin Configuration

ON/OFF and analog dimming (leave open if not used)
DA+| =(Blank)DA type: DALI+ signal
5| PWM DIM| ON/OFF and PWM dimming (leave open if not used) [(Blank)DA type: no such PIN]
6| Vout-| LED – connection
7| Vout+| LED + connection

LDH (Wire Style):

DIM
(white)| =W type:
ON/OFF and analog dimming (leave open if not used)
DA+(blue)| =WDA type: DALI+ signal
5| PWM DIM
(blue)| ON/OFF and PWM dimming (leave open if not used) [WDA type:no such PIN]
6| Vout-(black)| LED – connection
7| Vout+(red)| LED + connection

■ Derating Curve

■ Static Characteristics

■ Standard Application
※ Operation without dimming:
Io operates at rated current without dimming function when the pins of analog DIM and PWM DIM keep open

※ PWM Dimming Control (non DA type):
Io adjustment by PWM Signal

During PWM dimming operation, Io will change with the PWM duty (PWM Signal: 1K~10KHz)

Note: DALI dimming curve refer to 10KHz curve

※ Analog Dimming Control (non DA type):
Io adjustment by DC voltage

During analog dimming operation, Io will change with DC input voltage

※ DALI Dimming Control (DA type only):
Io adjustment by DALI signal

• DALI protocol including 16 groups and 64 addresses.
• Min. dimming level is about 8% of output.

■ Efficiency VS Output Voltage(Number of LEDs)

Application Notes:

1. The positive and negative input terminals must be connected correctly and negative voltage can not be input to avoid damage to the power supply.
2. Due to the large input current, please pay attention to the voltage drop of the wiring, to ensure the power supply to work properly.
3. At dim off, LDH output voltage will drop to the same level as input voltage. To get luminaires complete dark, please make luminaires are light off when they are driving by the input voltage.

■ Application Notes of EMC

1. If LDH-45 is powered by a battery, comply with BS EN/EN55015 without additional Input filter and capacitors.
2. If LDH-45 is powered by DC Bus, additional EMC filter parts shall be added to meet BS EN/EN55015. The recommended circuit is shown in Figure1

File Name:LDH-45-SPEC 2022-11-28
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