DC-DC Step-Up Constant Current LED driver
LDH-45 series
■ 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
ꢀProtections: Short circuit / Over voltage / Under voltage
ꢀCooling by free air convection
ꢀFully encapsulated
ꢀ3 years warranty
LDH-45 -350
=A or B; A: 9~18VDC input range, B: 18~32VDC input range
=Blank or W; Blank:pin style, W:wire style
SPECIFICATION
LDH-45A-500 LDH-45A-700 LDH-45A-1050
LDH-45B-350
LDH-45B-700 LDH-45B-1050
MODEL
LDH-45A-350
LDH-45B-500
700mA
1050mA
RATED CURRENT
350mA
500mA
700mA
350mA
500mA
1050mA
CURRENT ACCURACY(Typ.)
VOLTAGE RANGE Note.3
5% at 24VDC input
5% at 12VDC input
12~86VDC
21~64VDC
75V
21~43VDC
50V
12~86VDC
12~64VDC
75V
21~126VDC 21~86VDC
12~43VDC
50V
OUTPUT
INPUT
NO LOAD OUTPUT VOLTAGE(max.) 100V
100V
100V
146V
44.8W
45.15W
1.2Vp-p
30.1W
RIPPLE & NOISE (max.) Note.2 2.5Vp-p
43W
44.8W
43W
RATED POWER
45.15W
1.9Vp-p
45.15W
2.5Vp-p
24VDC
18~32VDC
93%
1.2Vp-p
2.5Vp-p
1.9Vp-p
1.7Vp-p
RATED VOLTAGE
VOLTAGE RANGE
EFFICIENCY (max.)
DC CURRENT (Typ.)
12VDC
9~18VDC
91%
95%
2A
95%
2A
90%
4.1A
90%
4.2A
91%
4.2A
94%
2.1A
2.8A
2.1A
Leave open if not used
PWM
DIMMING
&
ON/OFF
CONTROL
Power ON with dimming: PWM DIM~DIM- >2~8VDC or open circuit
Power OFF : PWM DIM~DIM- <0.5VDC or short or PWM duty is equal to 0%
1K~10KHz
REMOTE ON/OFF
PWM DIMMING FREQUENCY
QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(Typ.)
7mA at PWM dimming OFF
Leave open if not used
REMOTE ON/OFF
Power on with dimming: Analog DIM~DIM- >0.25~8VDC or open circuit
Power off : Analog DIM~DIM- <0.2VDC or short
ANALOG
DIMMING
&
DIM INPUT VOLTAGE RANGE 0.25~1.3VDC
ON/OFF
CONTROL
8V; The output current remains constant when voltage changes from 1.3V to 8V
MAX OPERATION VOLTAGE
QUIESCENT INPUT CURRENT
IN SHUTDOWN MODE(Typ.)
7mA at Analog dimming OFF
SHORT CIRCUIT
Protection type : Power OFF and fuse open
PROTECTION
ENVIRONMENT
100V
75V
50V
100V
75V
146V
100V
50V
OVER VOLTAGE (max.)
Protection type : Constant output voltage and shut off o/p current, recovers automatically after fault condition is removed
-40 ~ +70℃ (Refer to "Derating Curve")
20 ~ 90% RH non-condensing
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
-40 ~ +85℃, 10 ~ 95% RH
0.03%/℃ (0 ~ 50℃)
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
EN61347-1, EN61347-2-13 approved
Compliance to EN55015
SAFETY STANDARDS
EMC EMISSION
SAFETY &
EMC
Compliance to EN61547,EN61000-4-2,3,4,6,8; light industry level, criteria A
EMC IMMUNITY
MTBF
1179.3Khrs min. MIL-HDBK-217F (25℃)
OTHERS
NOTE
DIMENSION
75*53*22.7mm (L*W*H)
138g;100pcs/14.8Kg/0.83CUFT(Blank Type),1.04CUFT(W Type)
PACKING
1. All parameters are specified at normal input(12VDC,24VDC), rated load, 25℃ 70% RH ambient.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf parallel capacitor.
3. Output voltage will always step up by 3 Volts from input DC voltage.
File Name:LDH-45-SPEC 2016-10-15