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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
(LIN_MOTOR_PWM for linear motor).
There is a linear motor.
Depending on user scenario, one of these motors operates or two motors operate at the same time.
The strength of vibration is determined by the duty cycle of PWM (DC_PWM_MAG for DC motor,
LIN_PWM for linear motor).
U302 : SM100 is Linear motor driver IC.
3. Technical Brief
3.12 Vibrators
Linear Motor Schematic
VB300
2
1
100n
L300
100n
L301
VREG_MOTOR_3.0V
1u
C307
3.9n
C308
31
3
R
510K
10K
41
3
R
U302
9
5
4
6
3
7
2
8
1
EN
V1
SIN
VSS
TYPE
VCC
OCT
V2
D
N
G
P
LIN_MOTOR_EN
LIN_MOTOR_PWM
Linear Motor PAD
1%
EUSY0200803
U02 : SM100 is Linear motor driver IC.
(LIN_MOTOR_PWM for linear motor).