Pioneer DV-45A Service Manual page 92

1
7 BA6664FM (DVDM ASSY : IC251)
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3 7 63 1515 0
• Three-phase Motor Driver
A
¶ Block Diagram
B
C
TE
L 13942296513
¶ Pin Function
No. Pin Name
1 N.C. N.C.
D
2 A3 Output pin
3 N.C. N.C.
4 A2 Output pin
5 N.C. N.C.
6 N.C. N.C.
7 A1 Output pin
8 GND GND pin
9 H1+
10 H1-
E
11 H2+
Hall signal input pins
12 H2-
13 H3+
14 H3-
15 VH Hall bias pin
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92
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2
A3 2
DRIVER
A2 4
GAIN
CONTROL
A1 7
T
L
HALL AMP
GND 8
H1+ 9
H1- 10
H2+ 11
H2- 12
H3+ 13
H3- 14
Pin Function
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y
. i
2
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3
8
TSD
GAIN
SWITCH
CURRENT
SENSE AMP
TORQUE
PS
SENSE AMP
Vcc
Vcc
R
D Q
SHORT BRAKE
CK Q
BRAKE MODE
Q Q
3 6 7 1 3
HALL BIAS
No. Pin Name
16 BR Brake mode switching pin
17 CNF Capacitor connection pin for phase compensation
18 SB Short brake pin
19 FG2 FG 3-phase mix signal output pin
20 FR Rotation detecting pin
21 ECR Control reference pin of output voltage
22 EC Output voltage control pin
23 PS Power save pin
24 FG FG signal output pin
25 VCC Power supply pin
26 GSW Gain switching pin
27 VM Motor power pin
28 RNF Resistor connection pin for output current detection
FIN FIN GND
u163
.
DV-45A
3
4
2 9 9 4 2 8
28 RNF
27
VM
26 GSW
Vcc
25
VCC
24
FG
23
PS
22 EC
21 ECR
20
FR
19
FG2
18 SB
17 CNF
16 BR
1 5 0 5 8 2 9
15 VH
Pin Function
m
co
4
9 9
9 4 2 8 9 9