Data Sheet

WLMDU9456001JT / 172946001
MagI
3
C Power Module
LDHM - LED Step Down High Current Module
We-online.com Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© May 2016 9/35
TYPICAL PERFORMANCE CURVES
If not otherwise specified, the following conditions apply: VIN = 48 V; CIN = 2.2 µF 100 V X7R ceramic capacitor for driving
5-13 power LEDs, I
LED
= 350 mA; Single LED forward voltage used is 3.2 V; TAMB = 25 °C
I
LED
vs V
IN
V
LED
= 0V; DIM = open
LEDCurrent (mA)
Input Voltage (V)
0 10 20 30 40 50 60
0
2 00
4 00
6 00
8 00
1000
25°C
-40°C
125 °C
I
IN
vs V
IN
V
LED
= 0V; DIM = open
Input Current(mA)
Input Voltage (V)
0 10 20 30 40 50 60
0
20
40
60
80
1 00
25°C
-40°C
125 °C
1 0050
LED Current over Dimming Duty Ratio
LED Current (%)
Dimming Duty Ratio (%)
00 10 20 30 40 60 70 80 90
0
10
20
30
40
50
60
70
80
90
100
11LED (V
IN
= 60V)
8LED (V
IN
= 48V)
6LED (V
IN
= 36V)
20
D
LED Current over Dimming Duty
Ratio (0-1%)
LED Current (%)
Dimming Duty Ratio (%)
0.0 0.2 0.4 0.6 0.8 1.0
0.0
0.2
0.4
0.6
0.8
1.0
11LED (V
IN
= 60V)
8LED (V
IN
= 48V)
6LED (V
IN
= 36V)
Frequency Deviation vs V
IN
(800kHz)
Frequency Deviation (%)
Input Voltage (V)
202530354045505560
-3
-2
-1
0
1
2
3
25°C
-40°C
125°C
200
250
300
350
400
450
500
2300 2500 2700 2900 3100 3300 3500
LED Current [mA]
R
IADJ
[Ω]
I
LED
vs R
IADJ
- 6 LEDs, V
IN
= 24V