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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
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3.14 KEY BACLKLIGHT LED Interface
Key Backlight LED is controlled by switch (Q200). If KEY_BL_EN is high, Current is flowing from VBAT to LED.
Then Light emitted from The LED.
KEY_BL_EN is operating PWM. It is reducing current consumption.
Figure 3-14-1 Key Backlight Block
3. TECHNICAL BRIEF
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ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
61/140
3.14 KEY BACLKLIGHT LED Interface
Key Backlight LED is controlled by switch (Q200). If KEY_BL_EN is high, Current is flowing from VBAT to LED.
Then Light emitted from The LED.
KEY_BL_EN is operating PWM. It is reducing current consumption.
Figure 3-14-1 Key Backlight Block
3. TECHNICAL BRIEF
Содержание GD350
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