RT9273 데이터 시트보기 (PDF) - Richtek Technology
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RT9273 Datasheet PDF : 14 Pages
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RT9273
Preliminary
Dimming Control
20
18
16
14
12
1kHz
10 500Hz
8
6
4 200Hz
2
0
0.2
0.3
Driving 2LEDs
ILOAD = 20mA, VIN = 3.7V
0.4
0.5
0.6
0.7
0.8
Duty
Dimming Control
9
8
7
6
1kHz
5 500Hz
4
3
2 200Hz
1
Driving 2LEDs
ILOAD = 10mA, VIN = 3.7V
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Duty
Output Voltage vs. Output Current
9.1
Driving OLED
L = 4.7uH, VIN = 3.7V, VOUT = 8.6V
8.9
8.7
8.5
8.3
8.1
0 3 6 9 12 15 18 21 24 27 30
Output Current (mA)
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8
Dimming Control
14
12
10
8
1kHz
500Hz
6
4
2 200Hz
0
0.2
0.3
Driving 2LEDs
ILOAD = 15mA, VIN = 3.7V
0.4
0.5
0.6
0.7
0.8
Duty
Output Voltage vs. Output Current
13
Driving OLED
L = 4.7uH, VIN = 3.7V, VOUT = 12.5V
12.8
12.6
12.4
12.2
12
0 3 6 9 12 15 18 21 24 27 30
Output Current (mA)
DS9273-09 August 2007
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