SPECIFICATION
MODEL
RATED CURRENT
VOLTAGE RANGE
Note.2
OUTPUT
CURRENT ACCURACY(Typ.)
VOLTAGE RANGE Note.2
EFFICIENCY (max.)
INPUT
SHORT CIRCUIT
WORKING HUMIDITY
WORKING TEMP.
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
MTBF
DIMENSION
OTHERS
NOTE
PACKING
OVER VOLTAGE (max.)
DC CURRENT (Typ.)
30.1W
Leave open if not used
100V
100V 75V 146V 100V
9~18VDC
91%
20 ~ 90% RH non-condensing
-40 ~ +70 (Refer to "Derating Curve")℃
-40 ~ +85 , 10 ~ 95% RH℃
±℃ ℃)0.03%/ (0 ~ 50
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
75*53*22.7mm (L*W*H)
138g;100pcs/14.8Kg/0.83CUFT[(Blank) type or (Blank) DA type],1.04CUFT(W type or WDA type)
File Name:LDH-45-SPEC 2019-01-18
DC-DC Step-Up Constant Current LED driver LDH-45 series
■Features :
RIPPLE & NOISE (max.) Note.3
RATED POWER
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.
ENVIRONMENT
PROTECTION
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
3 years warranty
PWM
DIMMING
&
ON/OFF
CONTROL
REMOTE ON/OFF
Protection type : Power OFF and fuse open
Protection type : Constant output voltage and shut off o/p current, recovers automatically after fault condition is removed
75V
LDH-45B-350
350mA 350mA
LDH-45A-500
500mA
LDH-45A-350 LDH-45A-700
700mA
LDH-45B-500
500mA
LDH-45B-700
700mA
12~86VDC 21~126VDC
12~86VDC 12~64VDC 21~86VDC 21~64VDC
44.1W
±5% at 12VDC input
2.5Vp-p
2.5Vp-p 1.9Vp-p 2.5Vp-p 1.7Vp-p 1.2Vp-p
2.8A 2.1A
93% 94%
±5% at 24VDC input
18~32VDC
Power ON with dimming: PWM signal >2~8VDC or open circuit, between PWM DIM and DIM-
PWM DIMMING FREQUENCY 1K~10KHz
QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(Typ.)
QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(Typ.)
7mA when PWM dimming OFF
7mA when dimming OFFAnalog
43W 44.8W 43W 44.8W
Power OFF : PWM signal <0.5VDC or short or PWM duty is equal to 0%, between PWM DIM and DIM-
Leave open if not used
ANALOG
DIMMING
&
ON/OFF
CONTROL
REMOTE ON/OFF
Power on with dimming: DC input >0.25~8VDC or open circuit, 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
Power off : DC input <0.2VDC or short, between Analog DIM and DIM-
NO LOAD OUTPUT VOLTAGE(max.)
100V 146V
100V 75V 100V 75V
EMC EMC IMMUNITY
Compliance to EN55015;EAC TP TC 020
Compliance to EN61547,EN61000-4-2,3,4,6,8; light industry level, criteria A;EAC TP TC 020
EMC EMISSION
50V
LDH-45A-1050
1050mA
12~43VDC
1.9Vp-p
45.15W
50V
50V
1050mA
21~43VDC
1.2Vp-p
45.15W
50V
LDH-45B-1050
4.1A
90%
4.2A
90%
2.1A 2A
95%
4.2A
91%
2A
95%
=A or B; A: 9~18VDC input range, B: 18~32VDC input range
LDH-45 -350
WDA: Wire style, DALI dimming
1179.3Khrs min. MIL-HDBK-217F (25 )
RATED VOLTAGE 12VDC 24VDC
=(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
(for DA-Type only)
24~86VDC 24~86VDC 24~64VDC 24~43VDC 36~126VDC 36~86VDC 36~64VDC 36~43VDC
Non-DALI
DALI
SAFETY &
SAFETY STANDARDS EAC TP TC 004 approved
Mechanical Specification
LDH-45 series
File Name:LDH-45-SPEC 2019-01-18
BOTTOM
VIEW
3.5 [ 0.138 ]
53 [2.09]
19.75
7.4
7.4
68.1
SIDE
VIEW
22.7 [0.89]
12.75
32.8
75 [2.95]
PIN No.
1
2
6
7
4
Output
Vin+
Vin-
Vout-
Vout+
PWM DIM
Description
DC Supply
Don't connect to Vout-
LED - connection
LED + connection
ON/OFF and PWM dimming
(leave open if not used)
Mechanical Specification Pin Configuration
8mm
8mm
100 10mm±
5
6
Unit: mm [inch]
LDH (PIN Style):
LDH (Wire Style):
NOTE:PIN size tolerance 1.0 0.05mmψ±
5
Analog
DIM ON/OFF and analog dimming
(leave open if not used)
Vin+(red)
Vin-(black)
Vout-(black)
Vout+(red)
100 10mm±
3DIM- =(Blank) type:GND of DIM signal
Don't connect to Vout- or Vin-
Derating Curve
Ta ( )℃
LOAD (%)
-40 0 25 50 60 70
50
25
75
100
100
INPUT VOLTAGE (V)
LOAD (%)
Static Characteristics
912
20
14
24
16
28
50
25
75
100
18
18 32
B type B type
(B type)
Atype Atype
(A type)
DC-DC Step-Up Constant Current LED driver
PIN No.
1
2
6
7
Output Description
DC Supply
Don't connect to Vout-
LED - connection
LED + connection
6
6
134
6
7
25
BOTTOM
VIEW
53 [2.09]
SIDE
VIEW
22.7 [0.89]
75 [2.95]
134
6
7
25
DA- =(Blank)DA type:DALI- signal
DA+ =(Blank)DA type:DALI+ signal
=(Blank) type:
[(Blank)DA type: no such PIN]
3
DIM-
(black)
=W type:GND of DIM signal
Don't connect to Vout- or Vin-
DA-(white) =WDA type:DALI- signal
4
PWM DIM
(blue)
ON/OFF and PWM dimming
(leave open if not used)
5
Analog
DIM
(white)
ON/OFF and analog dimming
(leave open if not used)
DA+(blue) =WDA type:DALI+ signal
=W type:
[WDA type:no such PIN]
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0. 2 0. 3 0. 4 0. 5 0. 6 0. 7 0. 8 0. 9 1 1. 1 1. 2 1. 3
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
10KHZ
1KHZ
LDH-45 series
File Name:LDH-45-SPEC 2019-01-18
Standard Application
Analog DIM
Analog DIM
Analog DIM
DIM-
DIM-
DIM-
Vout+
Vout+
Vout+
Vin+
Vin+
Vin+
Vout-
Vout-
Vout-
LDH-45
LDH-45
LDH-45
DC Input
DC Input
DC Input
H
H:2~8VDC
0.25V~1.3V
L
L:0~0.5VDC
PWM DIM
PWM DIM
PWM DIM
Vin-
Vin-
Vin-
12VDC&24VDC input, full load
Iout(%)
PWM duty
Ioadjustment by PWM Signal
tolerance: 10%±
1st LED
1st LED
1st LED
Last LED
Last LED
Last LED
※Operation without dimming:
Iooperates at rated current without dimming function when the pins of analog DIM and PWM DIM keep open
※PWM Dimming Control (non DA type):
During PWM dimming operation, will change with the PWM duty
Io
12VDC input&24VDC input, full load
Iout(%)
tolerance: 10%±
Analog voltage (V)
Ioadjustment by DC voltage
※Analog Dimming Control (non DA type):
During analog dimming operation, will change with DC input voltage
Io
(PWM Signal: 1K~10KHz)
DC-DC Step-Up Constant Current LED driver
025.
※DALI Dimming Control (DA type only):
DA+
DA-
Vout+
Vin+
Vout-
LDH-45
DC Input
DALI signal
Vin-
1st LED Last LED
Ioadjustment by DALI signal
DALI protocol including 16 groups and 64 addresses.
Min. dimming level is about 8% of output.
Note: DALI dimming curve refer to 10KHz curve
90%
91%
92%
93%
94%
95%
7 1115192327
92%
93%
94%
95%
96%
9 1317212529333741
90%
91%
92%
93%
94%
95%
6 1014182226
93%
94%
95%
96%
97%
11 14 17 20 23 26
90%
91%
92%
93%
94%
95%
5 7 10 13 16 19
93%
94%
95%
96%
97%
7 10131619
90%
91%
92%
93%
94%
95%
6 8 10 12 14
93%
94%
95%
96%
97%
9 1011121314
LDH-45 series
File Name:LDH-45-SPEC 2019-01-18
Efficiency VS Output Voltage(Number of LEDs)
Number of LEDs
LDH-45A-350 12VDC input Vf 3 15V=.
Number of LEDs
LDH-45A-500 12VDC input Vf 3 33V=.
Number of LEDs
LDH-45A-700 12VDC input Vf 3 43V=.
Number of LEDs
LDH-45B-350 24VDC input Vf 3 09V=.
Number of LEDs
LDH-45B-500 24VDC input Vf 3 25V=.
Number of LEDs
LDH-45B-700 24VDC input Vf 3 43V=.
Number of LEDs
LDH-45A-1050 12VDC input Vf 3 15V=.
Number of LEDs
LDH-45B-1050 24VDC input Vf 3 15V=.
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
DC-DC Step-Up Constant Current LED driver
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. t dim off,LDH output voltage will drop to the same level as input voltage.To get luminaires complete dark,A
please make luminaires are light off when they are driving by the input voltage.
