AMIS-30421 Datasheet, PDF (2/41 Pages) ON Semiconductor – Micro-Stepping Stepper Motor Bridge Controller

AMIS−30421
BLOCK DIAGRAM
CLK
CS
DI
DO
NXT
DIR
CLR
SLA
WD
ERR
OSC
Logic &
Registers
Voltage
Regulator
POR
OTP
Load
Angle
Temp .
Sense
Band −
gap
Chargepump
EMC
P
W
M
T
I−sense
R
A
N
S
COMP
L
A
T
O
R
EMC
P
W
M
I−sense
COMP
AMIS −30421
GND
MOTXP
MOTXN
GXTL
GXTR
GXBL
GXBR
RSENSXP
RSENSXN
GYTL
GYTR
GYBL
GYBR
RSENSYP
RSENSYN
MOTYP
MOTYN
Figure 1. Block Diagram AMIS−30421
PIN OUT
NC 1
GXBL 2
MOTXP 3
GXTL ⁴
GXBR 5
MOTXN 6
GXTR 7
RSENSXP 8
RSENSXN 9
VDD 10
GND 11
AMIS−30421
33 NC
32 GYBL
31 MOTYP
30 _GYTL
29 GYBR
28 MOTYN
27 GYTR
26 RSENSYP
25 RSENSYN
24 _DIR
23 NXT
Figure 2. Pin Out AMIS−30421
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