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3. TECHNICAL BRIEF
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ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ͑
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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
10n
C557
VREG_MOTOR_3.3V
51K
R500
51K
R501
1K
R502
R503
680
150K
R505
150K
R504
1u
C500
0.1u
C501
U501
B2
C1
A1
B1
B3
C2
A3
C3
IN-
VDD
IN+
VO+
_SHUTDOWN
VO-
BYPASS
GND
VIB_P
VIB_M
KPD_PWR_N
VIB_PWM
1%
1%
1%
1%
1%
1%