LG GD580, Руководство по обслуживанию

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Only for training and service purposes LGE Internal Use Only
3. Technical brief
3.1.15 LED Driver IC
AN32053AA is equipped with a LED driver for LCD backlights, a driver for LED matrix, a driver
for RGB, and light intensity controller. Voltage is supplied by a step-up charge pump DC/DC
converter.
• RGB
- It is possible to set the current value, PWM duty, slope setting at PWM duty change, PWM
duty reflected the value of light sensor and firefly setting for each driver.
- Setting of PWM duty reflected the value of light sensor, normal one and firefly setting are an
exclusive use.
• Matrix LED drivers
- It is possible to set the current value and firefly setting for each forty nine LED drivers.
• Features
- LED matrix driver 7X7
- Step-up charge pump DC/DC converter : 300mA
- LDO : 2-ch.
- GPIO : 3-ch.
- I2C Interface
- LED drivers(for RGB : 3-ch, matrix LED driver : 7x7-ch)
Figure 3-1-15. Matrix LED and RGB LED
9 2 8 - 1 0 0 - 1 2 0 - 3 9 2 6 - 4 0
1 0 1 N C
1 2
0 2
9 1
8 1
7 1
6 1
5 1
4 1
3 1
2 1
1 1
0 1
9
8
7
6
5
4
3
2
1
T A B V
T S O O B V
8 V 1 _ E D D V
N E _ O D L _ M _ D E L _ P G _ C C A
L C S _ M _ D E L _ P G _ P P A
A D S _ M _ D E L _ P G _ P P A
N _ S E R _ M _ D E L _ P G _ C C A
2 T U O
0 T U O
1 T U O
3 T U O
D E R
N E E R G
E U L B
L R T C _ M _ D E L _ P G _ P P A
19-
2
37_R
6G
B
B
6C
-B
01_2T
LD
1
0
1
3
2
1
4
R
G
B
19-
2
37_R
6
G
B
B
6
C
-B
0
1_2T
LD
1
0
3
3
2
1
4
R
G
B
19-
2
37_R
6G
B
B
6C
-B
01_2T
LD
1
0
0
3
2
1
4
R
G
B
19-
2
37_R
6
G
B
B
6
C
-B
0
1_2T
LD
1
0
2
3
2
1
4
R
G
B
2 T U O
0 T U O
1 T U O
3 T U O
D E R
N E E R G
E U L B