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RX-DV5RSL
BA6664FM (IC251) : Motor driver
1. Block diagram
A3
2
A2
4
A1
7
HALL AMP
GND
+
8
-
H1+
+
9
-
H1-
10
+
-
H2+
11
+
-
H2-
12
+
-
H3+
13
+
-
H3-
14
2.Pin function
Pin No.
Symbol
Function
1
NC
NC
2
A3
Output3 for motor
3
NC
NC
4
A2
Output2 for motor
5
NC
NC
6
NC
NC
7
A1
Output1 for motor
8
GND
GND
9
H1+
Positive input for hall input Amp1
10
H1-
Negative input for hall input Amp1
11
H2+
Positive input for hall input Amp2
12
H2-
Negative input for hall input Amp2
13
H3+
Positive input for hall input Amp3
14
H3-
Negative input for hall input Amp3
15
VH
Hall bias terminal
16
BR
Brake Mode terminal
17
CNF
Capacitor connection pin for
phase compensation
18
SB
Short brake terminal
1-44
DRIVER
TSD
GAIN
CONTROL
CURRENT
SENSE AMP
TL
TORQUE
SENSE AMP
VCC
R
D
Q
SHORT BRAKE
CK
Q
BRAKE MODE
Hall Bias
RNF
28
VM
27
GSW
GAIN
26
SWITCH
VCC
25
VCC
FG
24
PS
23
PS
EC
22
+
-
ECR
21
VCC
FR
20
FG2
19
SB
18
CNF
17
BR
16
VH
15
Pin No.
Symbol
19
FG2
20
FR
21
ECR
22
EC
23
PS
24
FG
25
Vcc
26
GSW
27
VM
28
RNF
FIN
FIN
Function
N3Phase synthesized FG signal
output terminal
Rotation detect signal output terminal
Torque control standard voltage input
terminal
Torque control voltage input terminal
START/STOP switch
FG signal output terminal
Power supply for signal division
Gain switch
Power supply for driver division
Resistance connection pin for output
current sense
GND
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