SGM3138 Datasheet, PDF (5/11 Pages) SG Micro Corp – Low Dropout Current Source

SGM3138
6-Channel Charge Pump White LED
Driver with Low Dropout Current Source
TYPICAL PERFORMANCE CHARACTERISTICS
90
80
70
60
50
40
2.7
Efficiency vs. Input Voltage
20mA
LED V_F = 3V
3.1
3.5
3.9
4.3
4.7
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
LED Current Regulation vs. Input Voltage
25
20
15
10
5
0
3.2 3.6
4
4.4 4.8 5.2 ^5.5
Input Voltage (V)
5