LG GD580 - Shooting Videos and Quick Settings; Multimedia Features

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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
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