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AMIS-30543 Datasheet

Micro-Stepping Motor Driver

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AMIS-30543
Micro-Stepping Motor
Driver
Introduction
The AMIS30543 is a microstepping stepper motor driver for
bipolar stepper motors. The chip is connected through I/O pins and an
SPI interface with an external microcontroller. It has an onchip
voltage regulator, resetoutput and watchdog reset, able to supply
peripheral devices. AMIS30543 contains a currenttranslation table
and takes the next microstep depending on the clock signal on the
“NXT” input pin and the status of the “DIR” (=direction) register or
input pin. The chip provides a socalled “speed and load angle”
output. This allows the creation of stall detection algorithms and
control loops based on loadangle to adjust torque and speed. It is
using a proprietary PWM algorithm for reliable current control.
The AMIS30543 is implemented in I2T100 technology, enabling
both highvoltage analog circuitry and digital functionality on the
same chip. The chip is fully compatible with the automotive voltage
requirements.
The AMIS30543 is ideally suited for generalpurpose stepper
motor applications in the automotive, industrial, medical, and marine
environment. With the onchip voltage regulator it further reduces the
BOM for mechatronic stepper applications.
Key Features
Dual HBridge for 2Phase Stepper Motors
Programmable PeakCurrent Up to 3 A
OnChip Current Translator
SPI Interface
Speed and Load Angle Output
Eleven Step Modes from Full Step Up to 128 MicroSteps
Fully Integrated CurrentSense
PWM Current Control with Automatic Selection of Fast and Slow
Decay
Low EMC PWM with Selectable Voltage Slopes
Active FlyBack Diodes
Full Output Protection and Diagnosis
Thermal Warning and Shutdown
Compatible with 5 V and 3.3 V Microcontrollers
Integrated 5 V Regulator to Supply External Microcontroller
Integrated Reset Function to Reset External Microcontroller
Integrated Watchdog Function
These Devices are PbFree and are RoHS Compliant
www.onsemi.com
1 32
QFN32
CASE 485J
MARKING DIAGRAM
32
1
AMIS30543
0C543001
AWLYYWWG
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = PbFree Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 37 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
April, 2019 Rev. 3
1
Publication Order Number:
AMIS30543/D


  ON Semiconductor Electronic Components Datasheet  

AMIS-30543 Datasheet

Micro-Stepping Motor Driver

No Preview Available !

CLK
CS
DI
DO
NXT
DIR
SLA
POR/WD
CLR
ERR
AMIS30543
BLOCK DIAGRAM
VDD CPN CPP VCP VBB
Timebase
Vreg
Chargepump
POR
EMC
P
SPI
OTP
T
R
W
M
A
N
Isense
S
L
Logic &
Registers
Load
Angle
A
T
EMC
OP
RW
M
Tem. p
Sense
Isense
Band
gap
AMIS30543
TST0
GND
Figure 1. Block Diagram AMIS30543
MOTXP
MOTXN
MOTYP
MOTYN
GND
DI
CLK
NXT
DIR
ERR
SLA
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
AMIS30543
24 GND
23 GND
22 MOTXN
21 MOTXN
20 MOTYN
19 MOTYN
18 GND
17 GND
9 10 11 12 13 14 15 16
Figure 2. Pin Out AMIS30543
www.onsemi.com
2


Part Number AMIS-30543
Description Micro-Stepping Motor Driver
Maker ON Semiconductor
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1 AMIS-30542 Micro-Stepping Motor Driver
ON Semiconductor
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