Marantz SA12 - Phase Motor Driver for DVD Players

146
BA6856FP: 3 PHASE MOTOR DRIVER FOR DVD PLAYERS
Features
/3-phase, full-wave pseudo linear driving system
built-in power save
built-in therma shut down circuit
built-in current limit circuit
built in Hall bias circuit
built in FG-output (3-phase parallel output)
with switching function of regular/ reverse rotations
blockdiagram
-+
REV
PS
-
+
H BIAS
CONTROL
GAIN
DRIVER
+
-
+
-
+
-
+
-
+
-
+
-
MT1
29
MT2
30
NC1
NC2
NC3
NC4
NC5
PS
23
REV 24
RNF
28
VCC
25
VH 19
VM1
26
VM2 27
A1
A2
A3
CNF
20
EC 22
21
ECR
FG1
18
FG2 17
FG3 16
GND
8
H1+
H1-
H2+
H2-
H3+
H3-
BA6856FB
3
5
7
1
2
9
10
4
6
11
12
15
13
14