LG GT540 - Vibrators

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3. TECHNICAL BRIEF
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3.16 Vibrators
The strength of vibration is determined by the duty cycle of PWM (VIB_PWM)
U501 : SM100 is Linear motor driver IC.
Figure. Linear Moter Drive IC Schematic
Figure. Vibrator Block Diagram
10nC557
VREG_MOTOR_3.3V
51KR500
51KR501
1K
R502
R503
680
150KR505
150KR504
1u
C500
0.1u
C501
U501
B2C1
A1B1
B3C2
A3C3
IN- VDD
IN+ VO+
_SHUTDOWN VO-
BYPASS GND
VIB_P
VIB_M
KPD_PWR_N
V
IB_PWM
1%
1%
1%
1%
1%
1%