USAGE AREA

MEANWELL LDH Series Constant Current Power Supply

$ 20.54 $ 22.00

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Ballast /Drivers

LDH-45A-350

S7

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  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%
  • Built-in EMI filter,comply with EN55015 without additional input filter and capacitors
  • 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

LDH-45A-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-45B-350

LDH-45B-500

LDH-45B-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 OUTPUT VOLTAGE(max.)

100V

100V

75V

50V

146V

100V

75V

50V

RATED POWER

30.1W

43W

44.8W

45.15W

44.1W

43W

44.8W

45.15W

RIPPLE & 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 ON/OFF

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 8V

QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.)

 

7mA when Analog dimming OFF

 

PROTECTION

SHORT CIRCUIT

Protection type : Power OFF and fuse open

OVER VOLTAGE (max.)

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℃ (Refer to "Derating Curve")

WORKING HUMIDITY

20 ~ 90% RH non-condensing

STORAGE TEMP., HUMIDITY

-40 ~ +85℃, 10 ~ 95% RH

TEMP. COEFFICIENT

±0.03%/℃ (0 ~ 50℃)

VIBRATION

10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

 

SAFETY & EMC

SAFETY STANDARDS

EAC TP TC 004 approved

EMC EMISSION

Compliance to EN55015;EAC TP TC 020

EMC IMMUNITY

Compliance to EN61547,EN61000-4-2,3,4,6,8; light industry level, criteria A;EAC TP TC 020

 

OTHERS

MTBF

1179.3Khrs min.      MIL-HDBK-217F (25□ )

DIMENSION

75*53*22.7mm (L*W*H)

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℃ 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.

QUESTIONS & ANSWERS

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