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RT9301 Datasheet(PDF) 5 Page - Richtek Technology Corporation

Part # RT9301
Description  3-Channel Low Dropout RGB LED Driver
PDF  9 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9301 Datasheet(HTML) 5 Page - Richtek Technology Corporation

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RT9301
5
DS9301-02
March 2007
www.richtek.com
Typical Operating Characteristics
LED Current vs. Input Voltage
0
5
10
15
20
25
22.5
33.5
44.5
55.5
Input Voltage (V)
LED1
LED2
LED3
LED Current vs. VSET
0
10
20
30
40
50
60
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
VSET (V)
RSET = 36k
RSET = 51k
RSET = 75k
RSET = 160k
RSET = 360k
LED Current vs. Temperature
19.7
19.8
19.9
20
20.1
20.2
20.3
20.4
-40
-25
-10
5
20
35
50
65
80
95
Temperature
ILED = 20mA
(
°C)
Dimming Operation
Time (100
μs/Div)
VSET
ILED
(1V/Div)
(10mA/Div)
VBAT = 5.0V
Enable & Shutdown Response
Time (50
μs/Div)
(1V/Div)
(10mA/Div)
VSET
ILED
VBAT = 5.0V
Line Transient Response
Time (50
μs/Div)
(1V/Div)
(10mA/Div)
VIN
ILED
VBAT = 3.7V to 4.2V, ILED = 20mA
Vf1 = 3.02V, Vf2 = 3.06V, Vf3 = 3.17V



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