EUP2538 Datasheet, PDF (5/11 Pages) Eutech Microelectronics Inc – 10X2 Strings WLED Boost Converter

Typical Operating Characteristic
Quiescent Current vs. VIN
(Not Switching)
150
EUP2538
Quiescent Current vs. VIN
(Switching)
2
125
1.5
VFB=1.3V
100
1
75
0.5
50
3
3.5
4
4.5
5
5.5
Input Voltage (V)
FB PIN Voltage vs. Temperature
310
308
306
304
302
300
298
-50
0
50
100
150
Temperature ( )
Switching Frequency vs. Supply Voltage
1.1
1
0.9
0.8
3
3.5
4
4.5
5
5.5
Input Voltage (V)
0
3
3.5
4
4.5
5
5.5
Input Voltage (V)
FB PIN Voltage vs. Output Current
310
305
300
295
10WLEDs
290
5
40
10
15
20
25
30
Output Current (mA)
LED Current vs. Input Voltage
35
R_FB=10Ω
30
25
R_FB=15Ω
20
15
10
R_FB=20Ω
5
0
3
3.5
4
4.5
5
5.5
Input Voltage (V)
DS2538 Ver1.3 Nov. 2008
5