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RT9301 Fiches technique(PDF) 2 Page - Richtek Technology Corporation

No de pièce RT9301
Description  3-Channel Low Dropout RGB LED Driver
PDF  9 Pages
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Fabricant  RICHTEK [Richtek Technology Corporation]
Site Internet  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9301 Fiches technique(HTML) 2 Page - Richtek Technology Corporation

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RT9301
2
DS9301-02
March 2007
www.richtek.com
Typical Application Circuit
3
~
SET1
3
~
1
SET
3
~
SET1
3
~
LED1
R
0.9V
V
x
800
I
x
800
I
−
=
=
LED3
LED2
LED1
GND
ISET1
V
BAT
VIN
ISET3
ISET2
R
SET3
R
SET2
GPIO
RT9301
R
SET1
1uF
V
BAT
1uF
LED3
LED2
LED1
ISET1
VIN
ISET3
ISET2
RT9301
R
SET3
R
SET2
R
SET1
GPIO
GND
Figure 2. Application circuit for backlight
Figure 3. Application circuit for keypad
GPIO (V) ILED (mA)
RSET (kΩ) Nearest Standard Values for RSET (kΩ)
15
48
47.5
1.8
20
36
36
15
101
100
2.8
20
76
75
LED3
LED2
LED1
GND
ISET1
V
BAT
VIN
ISET3
ISET2
R
SET3
R
SET2
R
SET1
ON
OFF
GPIO
RT9301
V
SET1
V
SET2
V
SET3
1uF
Figure 1. Application circuit for RGB LED



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