EUP2796
Typical Operating Characteristics
LED Current vs VIN
Vset vs Power Supply
1.20
1.19
1.18
1.17
1.16
16.25
16.00
15.75
15.50
15.25
15.00
14.75
14.50
TA=25
5.2
℃
2.7
3.2
3.7
4.2
4.7
5.2
5.7
2.7
3.2
3.7
4.2
4.7
5.7
Power Supply (V)
Power Supply (V)
Head Room Voltage vs LED Current
LED Current vs RSET
30.00
20.00
15.00
10.00
5.00
25.00
20.00
15.00
10.00
5.00
0.00
0.00
0
20
40
60
80
100
0
0.1
0.2
0.3
0.4
0.5
RSET Resistance (kΩ)
Head Room Voltage
Input Current vs. Supply Voltage
Driving Six WLEDs (Rset=7.5KΩ, VLED=3.6V
Efficient vs Supply Voltage
Driving Six WLEDs (Rset=7.5KΩ, VLED=3.6V)
）
100
90
80
70
60
50
40
30
20
160
150
140
130
120
110
100
90
80
2.7
3.1
3.5
Supply Voltage(V)
DS2796 Ver1.0 Feb. 2007
3.9
4.3
4.7
2.7
3.1
3.5
3.9
4.3
4.7
Supply Voltage(V)
5
EUTECH [ EUTECH MICROELECTRONICS INC ]
