Datasheet

70%
75%
80%
85%
90%
95%
3.72 6.86 9.83
350 mA
700 mA
1050 mA
1400 mA
70%
75%
80%
85%
90%
95%
3.83 6.82 9.73 12.73 15.68 18.73 21.73
350 mA
700 mA
1050 mA
1400 mA
65%
70%
75%
80%
85%
90%
95%
100%
3.50 6.49 9.49 12.49 15.48 18.48 21.48 24.48 27.47 30.46 33.46
350 mA
700 mA
1050 mA
1400 mA
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
3.50 6.48 9.50 12.50 15.51 18.51 21.49 24.48 27.48 30.48 33.48 36.47 39.47 42.64 45.51
350 mA
700 mA
1050 mA
1400 mA
Efficiency VS Output Voltage(Number of LEDs)
Fig-1 12VDC input, 1~3 LEDs(Vf=3V) Fig-2 24VDC input, 1~7 LEDs(Vf=3V)
Fig-3 36VDC input, 1~11 LEDs(Vf=3V)
Output Voltage(LEDs)
Output Voltage(LEDs)
EFFICIENCY (%)
EFFICIENCY (%)
Fig-4 48VDC input, 1~15 LEDs(Vf=3V)
Output Voltage(LEDs)
Output Voltage(LEDs)
EFFICIENCY (%)
EFFICIENCY (%)
DC-DC Constant Current Step-Down LED driver with DALI
LDD-H-DA series
File Name:LDD-H-DA-SPEC 2018-05-11
Derating Curve
Ta ( )℃
LOAD (%)
-40 0 25 50
65
80
50
25
75
100
100
60 for 1050/1400mA℃
80 for℃
350~700mA