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Pin
No.
Mark I/O
Division
Function
1 IN 1R I H bridge 1 reverse input
terminal
2 IN 2F I H bridge 2 forward input
terminal
3 IN 2R I H bridge 2 reverse input
terminal
4 STALL I Standby input terminal
5 STHB I H1, H2 bridge mute input
terminal
6 SP VM1 I Half bridge 1 input terminal
7 SP U
OUT
O Spindle motor coil (U)
output terminal
8 SP PG1 — GND terminal
9 NC — Not used, open
10 SP V
OUT
O Spindle motor coil (V)
output terminal
11 SP VM2 I Half bridge input terminal
12 SP W
OUT
O Spindle motor coil (W)
output terminal
13 SP PG2 — GND terminal
14 PWVM I Power supply terminal
15 PWOUT O Hlaf bridge 1 output
terminal
(Not used, open)
16 PWPG — GND terminal
17 PWIN1 — Half bridge 1 input terminal
18 SP U IN I Roter position detect
comparater (U) input
terminal
19 SP V IN I Roter position detect
comparater (V) input
terminal
20 SPWIN I Roter position detect
comparater(W) input
terminal
21 SPCOM I Spindle motor coil center
input terminal
22 RIB — Connected to GND through
resistor
23 CST — Connected to GND through
capacitor
24 CSL1 I Slope capacitor connection
terminal