LG LG-A270 - Software Glitches

3. TECHNICAL BRIEF
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Copyright © 2012 LG Electronics. Inc. All right reserved.
O nly for training and service purposes
LGE Internal Use Only
36
3. TECHNICAL BRIEF
3.13 Vibrator Interface
Vibrator is controlled by LDO. Max Current of LDO is 200mA
DLDO OF MT6251 can Control LDO Voltage to 1.3/1.5/1.8/2.5/2.8/3.0/3.3 V
SW set up the register to control PMIC VIBR LDO circuit configuration.
Figure 3.13.1 Vibrator Driver Block Diagram
3.13 Vibrator Interface
Vibrator is controlled by LDO. Max Current of LDO is 200mADLDO OF MT6251 can Control LDO Voltage to 1.3/1.5/1.8/2.5/
2.8/3.0/3.3 VSW set up the register to control PMIC VIBR LDO circuit conguration.
Figure 3.13.1 Vibrator Driver Block Diagram
Extra LDOs
Vibrator
VIBR 1.8_3.0V/200mA
M
B1 B4
D4 C1
E1 C3 D2
VDRV
VFM
VIBR
VIO18 VIO28
VREF
VRF
VIO18
VIO28
VFM
C121
1UF
C133
0.1u
VIB_P
C232
1u
R237 10
10R238
L201 1
VB200
2
1
47n
C231
VIB_P