AMIS-30532_15 Datasheet, PDF (2/29 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30532
Block DIAGRAM
VDD CPN CPP VCP VBB
CLK
Timebase
Vreg
Chargepump
CS
DI
DO
NXT
DIR
SLA
POR / WD
CLR
ERR
POR
EMC
P
SPI
T
OTP
R
W
M
A
N
I−sense
S
L
Logic &
Registers
Load
Angle
A
T
EMC
O
P
R
W
M
Temp .
Sense
I−sense
Band−
gap
AMIS−30532
GND
Figure 1. Block Diagram AMIS−30532
MOTXP
MOTXN
MOTYP
MOTYN
Table 1. PIN LIST AND DESCRIPTION
Name
GND
DI
CLK
NXT
DIR
ERR
SLA
/
CPN
CPP
VCP
CLR
CS
VBB
MOTYP
GND
MOTYN
MOTXN
GND
MOTXP
VBB
/
POR/WD
TST0
DO
VDD
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15, 16
17, 18
19, 20
21, 22
23, 24
25, 26
27
30
28
29
31
32
Description
Ground
SPI Data In
SPI Clock Input
Next Micro−Step Input
Direction Input
Error Output (Open Drain)
Speed Load Angle Output
No Function (to be left open in normal operation)
Negative Connection of Charge Pump Capacitor
Positive Connection of Charge Pump Capacitor
Charge−Pump Filter−Capacitor
“Clear” = Chip Reset Input
SPI Chip Select Input
High Voltage Supply Input
Negative End of Phase Y Coil Output
Ground, Heat Sink
Positive End of Phase Y Coil Output
Positive End of Phase X Coil Output
Ground, Heat Sink
Negative End of Phase X Coil Output
High Voltage Supply Input
No Function (to be left open in normal operation)
Power−On−Reset and Watchdog Reset Output (Open Drain)
Test Pin Input (to be tied to ground in normal operation)
SPI Data Output (Open Drain)
Logic Supply Output (needs external decoupling capacitor)
Type
Supply
Digital Input
Digital Input
Digital Input
Digital Input
Digital Output
Analog Output
High Voltage
High Voltage
High Voltage
Digital Input
Digital Input
Supply
Driver Output
Supply
Driver Output
Driver Output
Supply
Driver Output
Supply
Digital Output
Digital Input
Digital Output
Supply
Equivalent
Schematic
Type 2
Type 2
Type 2
Type 2
Type 4
Type 5
Type 1
Type 2
Type 3
Type 3
Type 2
Type 4
Type 6
www.onsemi.com
2