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 6/35
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
27
D
Radiated Emissions (dBλV/m)
Freqency (MHz)
Radiated Emissions EN55015 compliant:
V
IN
= 60V; I
LED
= 350mA; C
IN
/C
OUT
= 2.2µF;
LEDs = 16
30
100 300
0
10
30
40
50
70
20
60
80
EMI
EN 55015 limit
Con dition s: hor i zon tal ; he igh t = 3m; r an ge = 10 m
28
D
Radiated Emissions (dBλV/m)
Freqency (MHz)
Radiated Emissions EN55015 compliant:
V
IN
= 60V; I
LED
= 350mA; C
IN
/C
OUT
= 2.2µF;
LEDs = 16
30
100
300
0
10
30
40
50
70
20
60
80
EMI
EN 55015 limit
Con dition s: vertica l; he igh t = 1m; ran ge = 10 m
0 10 20 30 40
60
65
70
75
80
85
90
95
100
Efficiency (%)
Input Voltage(V)
1LED
2LED
3LED
4LED
Efficiency: I
LED
= 350mA; T
AMB
= 25°C
Efficiency (%)
Input Voltage(V)
Efficiency: I
LED
= 350mA; T
AMB
= 25°C
2530354045505560
75
80
85
90
95
6LED
10LED
14LED
16LED
I
LED
Regulation: 350mA; T
AMB
= 25°C
0 10 20 30 40
-3
-2
-1
0
1
2
3
I
LED
Regulation (%)
Input Voltage (V)
1LED
2LED
3LED
4 L ED
I
LED
Regulation: 350mA; T
AMB
= 25°C
-3
-2
-1
0
1
2
3
I
LED
Regulation (%)
Input Voltage (V)
25 30 35 40 45 50 55 60
6 L ED
1 0L ED
1 4L ED
16LED