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