SP6686 查看數據表（PDF） - Signal Processing Technologies
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SP6686 Datasheet PDF : 13 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6, Typical Application, TA = 25°C unless otherwise noted.
D1 = AOT2015HPW-1915B LED, Rsense =
0.33Ω, Rset = 106KΩ, Cin = 2.2µF, Cfc =
0.47µF, Cout = 1µF.
Output Current Vs Supply Voltage
500
400
300
Flash 400mA Vf =
3.5V
Torch 150mA Vf =
200
3.1V
100
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Figure 9
D1 = AOT 3228HPW0303B LED, Rsense =
0.33Ω, Rset = 140KΩ, Cin = 2.2µF, Cfc =
0.47µF, Cout = 1µF.
Output Current Vs Supply Voltage
400
350
300
250
Flash 300mA Vf = 3.85V
200
Torch 150mA Vf = 3.45V
150
100
50
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Figure 12
Efficiency Vs Supply Voltage
100
90
80
Flash 400mA
70
Vf = 3.5V
Torch 150mA
60
Vf = 3.1V
50
40
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Figure 10
Efficiency Vs Supply Voltage
100
90
Flash 300mA
80
Vf = 3.85V
Torch 150mA
70
Vf = 3.45V
60
50
40
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Figure 13
1000
Battery Current Vs Supply Voltage
800
600
Flash 400mA Vf =
3.5V
Torch 150mA Vf =
400
3.1V
200
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Figure 11
Battery Current Vs Supply Voltage
800
700
600
500
Flash 300mA Vf = 3.85V
400
Torch 150mA Vf = 3.45V
300
200
100
0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Vin (V)
Figure 14
Note: Diode, resistor and capacitor settings apply to figures 9, 10 & 11. Note: Diode, resistor and capacitor settings apply to figures 12, 13 & 14.
Date: 03/10/06
SP6686 400mA, Buck/Boost Charge Pump LED Driver
6
© Copyright 2006 Sipex Corporation
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