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SC652 Datasheet(PDF) 8 Page - Semtech Corporation

No. de pieza SC652
Descripción Electrónicos  Backlight Driver for 5 LEDs with Charge Pump and PWM Control
PDF  16 Pages
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Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC652 Datasheet(HTML) 8 Page - Semtech Corporation

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SC652
8
Typical Characteristics (continued)
PWM Accuracy — 4.2V
VIN = 4.2V, RISET = 4.99kΩ, Calculated IBL = (100/RISET) x Duty Cycle
Measured IBL (mA)
32kHz
0
4
8
12
16
20
04
8
12
16
20
50kHz
200Hz
PWM Accuracy — 3.7V
PWM Accuracy — 2.9V
Measured IBL (mA)
VIN = 3.7V, RISET = 4.99kΩ, Calculated IBL = (100/RISET) x Duty Cycle
0
4
8
12
16
20
04
8
12
16
20
32kHz
50kHz
200Hz
Measured IBL (mA)
VIN = 2.9V, RISET = 4.99kΩ, Calculated IBL = (100/RISET) x Duty Cycle
0
4
8
12
16
20
04
8
12
16
20
32kHz
50kHz
200Hz
Percentage of Maximum I
BL — 4.2V
PWM Duty Cycle (%)
VIN = 4.2V, RISET = 4.99kΩ
0
20
40
60
80
100
0
20
40
60
80
100
200Hz
32kHz
50kHz
VIN = 3.7V, RISET = 4.99kΩ
PWM Duty Cycle (%)
0
20
40
60
80
100
0
20
40
60
80
100
200Hz
32kHz
50kHz
VIN = 2.9V, RISET = 4.99kΩ
PWM Duty Cycle (%)
0
20
40
60
80
100
0
20
40
60
80
100
200Hz
50kHz
32kHz
Percentage of Maximum I
BL — 3.7V
Percentage of Maximum I
BL — 2.9V



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