S7
MEANWELL LDH Series Constant Current Power Supply
MEANWELL LDH Series Constant Current Power Supply
SKU SKU:LDH-45A-350
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Datasheet
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 |
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OUTPUT |
RATED CURRENT |
350mA |
500mA |
700mA |
1050mA |
350mA |
500mA |
700mA |
1050mA |
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CURRENT ACCURACY(Typ.) |
±5% at 12VDC input |
±5% at 24VDC input |
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VOLTAGE RANGE Note.2 |
Non-DALI |
12~86VDC |
12~86VDC |
12~64VDC |
12~43VDC |
21~126VDC |
21~86VDC |
21~64VDC |
21~43VDC |
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DALI |
24~86VDC |
24~86VDC |
24~64VDC |
24~43VDC |
36~126VDC |
36~86VDC |
36~64VDC |
36~43VDC |
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NO LOAD OUTPUT VOLTAGE(max.) |
100V |
100V |
75V |
50V |
146V |
100V |
75V |
50V |
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RATED POWER |
30.1W |
43W |
44.8W |
45.15W |
44.1W |
43W |
44.8W |
45.15W |
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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 |
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INPUT |
RATED VOLTAGE |
12VDC |
24VDC |
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VOLTAGE RANGE Note.2 |
9~18VDC |
18~32VDC |
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EFFICIENCY (max.) |
91% |
90% |
90% |
91% |
93% |
94% |
95% |
95% |
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DC CURRENT (Typ.) |
2.8A |
4.1A |
4.2A |
4.2A |
2.1A |
2.1A |
2A |
2A |
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PWM DIMMING & ON/OFF CONTROL |
REMOTE ON/OFF |
Leave open if not used |
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Power ON with dimming: PWM signal >2~8VDC or open circuit, between PWM DIM and DIM- |
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Power OFF : PWM signal <0.5VDC or short or PWM duty is equal to 0%, between PWM DIM and DIM- |
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PWM DIMMING FREQUENCY |
1K~10KHz |
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QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.) |
7mA when PWM dimming OFF |
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ANALOG DIMMING & ON/OFF CONTROL |
REMOTE ON/OFF |
Leave open if not used |
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Power on with dimming: DC input >0.25~8VDC or open circuit, between Analog DIM and DIM- |
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Power off : DC input <0.2VDC or short, between Analog DIM and DIM- |
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DIM INPUT VOLTAGE RANGE |
0.25~1.3VDC |
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MAX OPERATION VOLTAGE |
8V; The output current remains constant when voltage changes from 1.3V to 8V |
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QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(Typ.) |
7mA when Analog dimming OFF |
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PROTECTION |
SHORT CIRCUIT |
Protection type : Power OFF and fuse open |
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OVER VOLTAGE (max.) |
100V |
100V |
75V |
50V |
146V |
100V |
75V |
50V |
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Protection type : Constant output voltage and shut off o/p current, recovers automatically after fault condition is removed |
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ENVIRONMENT |
WORKING TEMP. |
-40 ~ +70℃ (Refer to "Derating Curve") |
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WORKING HUMIDITY |
20 ~ 90% RH non-condensing |
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STORAGE TEMP., HUMIDITY |
-40 ~ +85℃, 10 ~ 95% RH |
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TEMP. COEFFICIENT |
±0.03%/℃ (0 ~ 50℃) |
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VIBRATION |
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes |
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SAFETY & EMC |
SAFETY STANDARDS |
EAC TP TC 004 approved |
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EMC EMISSION |
Compliance to EN55015;EAC TP TC 020 |
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EMC IMMUNITY |
Compliance to EN61547,EN61000-4-2,3,4,6,8; light industry level, criteria A;EAC TP TC 020 |
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OTHERS |
MTBF |
1179.3Khrs min. MIL-HDBK-217F (25□ ) |
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DIMENSION |
75*53*22.7mm (L*W*H) |
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PACKING |
138g;100pcs/14.8Kg/0.83CUFT[(Blank) type or (Blank) DA type],1.04CUFT(W type or WDA type) |
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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. |