TH-V70
1-46
BA6664FM (IC251) : Motor driver
1. Terminal layout & Block diagram
2. Pin function
NC
A3
NC
A2
NC
NC
A1
GND
H1+
H1-
H2+
H2-
H3+
H3-
VH
BR
CNF
SB
FG2
FR
ECR
EC
PS
FG
VCC
GSW
VM
RNF
FIN
Not connect
Output terminal
Not connect
Output terminal
Not connect
Not connect
Output terminal
Ground terminal
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
Hall signal input terminal
Hall bias terminal
Brake mode switching terminal (Not connect)
Connecting terminal for phase compensating capacitor
Short brake terminal
FG3-phase synthesizing signal output terminal (Not connect)
Rotation detecting terminal (Not connect)
Reference terminal for output voltage control
Output terminal for output voltage control
Power save terminal
FG signal output terminal
Power supply terminal
Gain switching terminal
Power supply terminal for motor
Connecting terminal for output current detecting resistor
Ground
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29,30
Pin No. Symbol
Function
1
HALL
AMP.
DRIVER
GAIN
CONTROL
D
CK
R
Q
Q
HALL
BIAS
SHORT
BRAKE
SENSE
AMP.
PS
TORQE
Vcc
CURRENT
SENSE AMP.
T
L
TSD
GAIN
SWITCH
2
3
4
5
6
7
8
9
10
11
12
13
14
21
20
19
18
17
16
15
28
27
26
25
24
23
22
Vcc
Vcc
FIN
FIN
BRAKE
MODE
Summary of Contents for TH-V70
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