– 23 –
Pin No.
Pin Name
I/O
Description
IC, BD6606KVT
1
SPWIN
I
SPIN detection comparator input (Phase W).
2
SPCOM
I
SPIN motor coil mid-point input terminal.
3
EXTCLK
I
Synchronized clock input terminal.
4 C1P – CHARGEPUMP capacitor 1 conne ct te.
5
C1M
–
CHARGEPUMP capacitor 1 connect terminal -.
6
C2P
–
CHARGEPUMP capacitor 2 connect te.
7
C2M
–
CHARGEPUMP capacitor 2 connect terminal -.
8
VG
O
CHARGEPUMP output.
9
SLVM1
–
Stepping power part power supply 1.
10
SLUOUT
O
Stepping motor output (Phase U).
11
SLPG1
–
Stepping power part GND 1.
12
SLVOUT
O
Stepping motor output (Phase V).
13
SLVM2
–
Stepping power part power supply 2.
14
SLWOUT
O
Stepping motor output (Phase W).
15
SLPG2
–
Stepping power part GND 2.
16
SLCOM
I
STEP motor coil mid-point input terminal.
17
BEMFW
O
STEP detection comparator output (Phase W).
18
BEMFV
O
STEP detection comparator output (Phase V).
19
BEMFU
O
STEP detection comparator output (Phase U).
20
S3
I
Stepping decoder input 3.
21
S2
I
Stepping decoder input 2.
22
S1
I
Stepping decoder input 1.
23
SGND
–
Small signal part GND (MOS).
24
ASGND
–
Small signal part GND (Bip.).
25
STHB
O
H1 and H2 bridge mute terminal.
26
STALL
I
Standby terminal.
27
PW1VM
–
Half bridge 1 power part power supply.
28
PW1OUT
O
Half bridge 1 output.
29
PWPG
–
Half bridge power part GND.
30
PW2VOUT
–
Half bridge 2 output.
31
PW2VM
–
Half bridge 2 power part power supply.
32
PWIN2
I
Half bridge 2 input.
33
PWIN1
I
Half bridge 1 input.
34
IN2R
I
H bridge 2 reverse input.
35
IN2F
I
H bridge 2 forward input
36
IN1R
I
H bridge 1 reverse input.
37
IN1F
I
H bridge 1 forward input.
38
H2PG2
–
H bridge 2 power part GND2.
39
H2ROUT
O
H bridge 2 reverse output.
40
H2VM
–
H bridge 2 power part power supply.
41
H2FOUT
O
H bridge 2 forward output.
42
H2PGI
–
H bridge 2 power part GND1.
