- 6 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
͑
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ͑
͑
3.16 Vibrators (Q-Coin Motor)
The strength of vibration is determined by the duty cycle of PWM (LIN_PWM_FREQ)
U602 : EUSY0404001 is Q-Coin motor driver IC.
Figure. Q-Coin Moter IC Schematic
Figure. Vibrator Block Diagram
C623
0.1u
R614
4.7Kohms
R617
51K
C625
10n
R612 100K
R618
1K
R615
1K
R616
51K
VREG_MOTOR_3.3V
VREG_MOTOR_3.3V
U602
B2
C1
A1
B1
B3
C2
A3
C3
IN-
VDD
IN+
VO+
_SHUTDOWN
VO-
BYPASS
GND
Q600
C
B
E
GND
IN
OUT
C624
0.1u
R619
100K
LIN_PWM_FREQ
MTR_P_2sub
MTR_N_2sub
1%
1%
1%
1%
1%
1%