AMIS-30621 Datasheet, PDF (4/59 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS−30621
HW0
HW1
VDD
GND
TST
LIN
GND
HW2
CPN
CPP
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
SOIC−20
SWI
VBB
MOTXP
GND
MOTXN
MOTYP
GND
MOTYN
VBB
VCP
XP
XP
VBB
VBB
VBB
SWI
NC
HW0
32
25
1 ^{31 30 29 28 27 26} 24
2
23
3
22
4
AMIS−30621
21
5
(Top View)
20
6
19
7
18
8 _{10 11 12 13 14 15} 17
YN
YN
VBB
VBB
VBB
VCP
CPP
CPN
9
16
NQFP−32
Figure 2. SOIC−20 and NQFP−32 Pin−out
Table 4. PIN DESCRIPTION
Pin Name
Pin Description
HW0
HW1
Bit 0 of LIN−ADD
Bit 1 of LIN−ADD
To be Tied to GND or V_DD
V_DD
GND
Internal supply (needs external decoupling capacitor)
Ground, heat sink
TST
Test pin (to be tied to ground in normal operation)
LIN
LIN−bus connection
HW2
Bit 2 LIN−ADD
CPN
Negative connection of pump capacitor (charge pump)
CPP
Positive connection of pump−capacitor (charge pump)
VCP
Charge−pump filter−capacitor
V_BB
MOTYN
Battery voltage supply
Negative end of phase Y coil
MOTYP
Positive end of phase Y coil
MOTXN
Negative end of phase X coil
MOTXP
Positive end of phase X coil
SWI
Switch input
NC
Not connected (to be tied to ground)
SOIC−20
1
2
3
4,7,14,17
5
6
8
9
10
11
12,19
13
15
16
18
20
NQFP−32
8
9
10
11, 14, 25, 26, 31, 32
12
13
15
17
18
19
3, 4, 5, 20, 21, 22
23, 24
27, 28
29, 30
1, 2
6
7, 16
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