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WD3148 Datasheet(PDF) 6 Page - Will Semiconductor Ltd.

Part # WD3148
Description  White LED Driver with PWM Brightness Control in Tiny Package
PDF  17 Pages
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Manufacturer  WILLSEMI [Will Semiconductor Ltd.]
Direct Link  http://www.willsemi.com/index.php?siteid=2
Logo WILLSEMI - Will Semiconductor Ltd.

WD3148 Datasheet(HTML) 6 Page - Will Semiconductor Ltd.

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WD3148
Will Semiconductor Ltd.
6
Apr 12, 2016 - Rev. 1.0
Typical Characteristics
(Ta=25
oC, V
IN=3.6V, VEN=VIN, CIN=COUT=1μF, 10 LEDs, unless otherwise noted)
Efficiency vs. Output Current
Efficiency vs. Output Current
LED Current vs. Temperature
Frequency vs. Temperature
LED Current vs. Supply Voltage
Frequency vs. Supply Voltage
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.50
0.55
0.60
0.65
0.70
Supply Voltage (V)
0
2
4
6
8
10 12 14 16 18 20
50
60
70
80
90
100
Output Current (mA)
L=22uH,10LEDs
V
IN
=3.0V
V
IN
=3.6V
V
IN
=4.2V
V
IN
=5.0V
0
4
8
12 16 20 24 28 32 36 40
50
60
70
80
90
100
Output Current (mA)
L=22uH 6x2LEDs
V
IN
=3.0V
V
IN
=3.6V
V
IN
=4.2V
V
IN
=5.0V
-50
-30
-10
10
30
50
70
90
19.0
19.5
20.0
20.5
21.0
Temperature (
oC)
V
IN
=3.0V
V
IN
=3.6V
V
IN
=4.2V
V
IN
=5.0V
-50
-30
-10
10
30
50
70
90
0.50
0.55
0.60
0.65
0.70
Temperature (
oC)
V
IN
=3.0V
V
IN
=3.6V
V
IN
=4.2V
V
IN
=5.0V
2.5
3.0
3.5
4.0
4.5
5.0
5.5
19.0
19.5
20.0
20.5
21.0
Input Voltage (V)
10LEDs



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