BA6664FM (DVDM ASSY : IC251)
• Spindle Driver
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
List of IC
BA6664FM, L6315ATXXTY, M56788AFP, STI5519AVB-B0C, PCM1742KE, MM1567AJ, PDC093
DRIVER
TSD
PS
TORQUE
CURRENT
SENSE AMP
SENSE AMP
SHORT BRAKE
D
R
Q
CK Q
TL
GAIN
CONTROL
GAIN
SWITCH
Vcc
Vcc
Vcc
A3
2
A2
4
A1
7
GND
8
H1+
9
H1-
10
H2+
11
H2-
12
H3+
13
H3-
14
GSW
26
FG
24
VCC
25
RNF
28
VM
27
HALL AMP
PS
23
EC
22
ECR
21
FR
20
FG2
19
SB
18
CNF
17
BR
16
VH
15
BRAKE MODE
HALL BIAS
Block Diagram
Pin Function
No. Pin Name Pin NamePin Function No. Pin Function
1 N.C. N.C. 16 BR Brake mode switching pin
2 A3 Output pin 17 CNF Capacitor connection pin for phase compensation
3 N.C. N.C. 18 SB Short brake pin
4 A2 Output pin 19 FG2 FG 3-phase mix signal output pin
5 N.C. N.C. 20 FR Rotation detecting pin
6 N.C. N.C. 21 ECR Control reference pin of output voltage
7 A1 Output pin 22 EC Output voltage control pin
8 GND GND pin 23 PS Power save pin
9H1+
Hall signal input pins
24 FG FG signal output pin
10 H1- 25 VCC Power supply pin
11 H2+ 26 GSW Gain switching pin
12 H2- 27 VM Motor power pin
13 H3+ 28 RNF
Resistor connection pin for output current detection
14 H3- FIN FIN GND
15 VH Hall bias pin