SP6685ER 查看數據表（PDF） - Signal Processing Technologies
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SP6685ER Datasheet PDF : 16 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
D1 = Luxeon LXCL-PWFI LED, Rsense = 0.22ohms, D1 = AOT 3228HPW0303B LED, Rsense = 0.33ohms,
RSET = 88.7K, CIN = 4.7μF, CFC = 1.0μF, COUT = 1.0μF RSET = 162K, CIN = 4.7μF, CFC = 0.47μF, COUT = 1μF
900
Output Current Vs Supply Vol
800
700
600
500
Flash 700mA Vf = 3
400
Torch 200mA Vf = 3.
300
200
100
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V
Figure 13.
Output Current Vs Supply Vol
400
350
300
250
Flash 300mA Vf = 3.85
200
Torch 150mA Vf = 3.45
150
100
50
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V
Figure 16.
Efficiency Vs Supply Vol
100
90
80
Flash Mode
70
700mA Vf =
3.45V
60
Torch Mode
200mA Vf = 3.
50
40
3.0
3.2
3.4
3.6
3.8
4.0
Vin (V
Figure 14.
Efficiency Vs Supply Vol
100
90
Flash 300m
Vf = 3.85V
80
Torch 150mA
Vf = 3.45V
70
60
50
40
4.2
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V
Figure 17.
1800
Battery Current Vs Supply Vo
1600
1400
1200
1000
800
600
Flash 700mA Vf = 3.
Torch 200mA Vf = 3.
400
200
0
3.0 3.2 3.4 3.6 3.8 4.0 4.2
Vin (V
Figure 15.
Note: diode, resistor, and capacitor settings apply to
figures 13, 14, and 15.
Battery Current Vs Supply Vo
800
700
600
500
Flash 300mA Vf = 3.8
400
Torch 150mA Vf = 3.4
300
200
100
0
3.0 3.2 3.4 3.6 3.8 4.0 4.2
Vin (V
Figure 18.
Note: diode, resistor, and capacitor settings apply to
figures 16, 17, and 18.
Date: 7/6/06 Rev B
SP6685, 700mA Buck/BoostCharge Pump LED Driver
7
© 2006 Sipex Corporation
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