3-37
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. MOTOR DRIVE IC(AM5898N)
1-1. Block Diagram
1
EN2
34
BIAS
2
CT2
33
MUTE
3
COMP2
32
EN1
4
SW2
31
CT1
5
IPK2
30
COMP1
6
PVCC1
29
SW1
7
PVCC2
28
IPK1
8
VOFC+
27
PGND2
9
VOFC-
26
PGND1
10
VCC1
25
PGND
11
VINFC
24
VCC2
12
VINSL+
23
VINTK
13
MGND
22
VINSP
14
VOSL+
21
VOSP-
15
VOSL-
20
VOSP+
16
MGND
19
MGND
17
VOTK+
18
VOTK-
PGND
SW1
COMP1
CT1
IPK1
DC-DC I
PVCC
EN1
SW2
COMP2
CT2
IPK2
DC-DC II
PVCC
EN2
PGND
PGND
10K
15K
25K
25K
25K
10K
10K
10K
MGND
MGND
MGND
GND
GND
Vcc2
Vcc1
Vcc2
Vcc2
Vcc1
+
-
+
-
+
-
+
-
Spindle
Driver(4X)
MUTE
Actuator
Driver(6X)
Sled
Driver(4X)
Actuator
Driver(6X)
INTERNAL BLOCK DIAGRAM OF ICs