TYPICAL PERFORMANCE CHARACTERISTICS
Torch Mode 200mA Iout
Flash Mode 700mA Iout
300
200
100
0
900
800
700
600
500
Vf = 3.0V
Vf = 3.3V
Vf = 3.6V
Vf = 3.9V
Vf = 3.3V
Vf = 3.6V
Vf = 3.9V
Vf = 4.2V
400
300
200
100
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Vin (V)
Figure 1. Torch Mode Output Current
Figure 2. Flash Mode Output Current
Torch Mode 200mA Efficiency
Flash Mode 700mA Efficiency
100
100
Vf = 3.3V
Vf = 3.6V
90
90
Vf = 3.9V
Vf = 4.2V
80
80
Vf = 3.0V
Vf = 3.3V
Vf = 3.6V
Vf = 3.9V
70
60
50
40
70
60
50
40
3.0
3.2
3.4
3.6
Vin (V)
3.8
4.0
4.2
3.0
3.2
3.4
3.6
Vin (V)
3.8
4.0
4.2
Figure 3. Torch Mode Efficiency
Figure 4. Flash Mode Efficiency
Date: 12/15/04
SP6685 Charge Pump LED Driver for Camera Flash
© Copyright 2004 Sipex Corporation
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