Input/Output circuit diagram
66
Three-phase motor driver output
Hall signal input
Splindle driver feedback filter pin
PWM driver output SLED1, 2
BTL driver input FO, TK, LD
PWM driver input SLED1, 2
PWM driver input Spindle
BTL driver output FO, TK
BTL driver output LD
Spindle driver current detection input
Hall bias
FG signal output
10
8 17
19
18
11
9
3
1
5
54pin
54pin
54pin
4
2
6
31 32
35
37
34
36
45
47
46
48
51pin
51pin
44pin
49
50
51pin
51pin
51pin
7
54pin
21
54pin
52
26
53
51pin
51pin
47k
Ω
Reference voltage input
28
29
30pin
54pin
47k
Ω
33
54pin
10k
Ω
24
54pin
54pin
112.5k
Ω
Control signal input
22
23
54pin
54pin
50k
Ω
50k
Ω
50k
Ω
20
51pin
312.5
Ω
27
51pin
×
3ch
×
2ch
10k
Ω
50k
Ω
50k
Ω
112.5k
Ω
47k
Ω
10k
Ω
150k
Ω