The AMIS-30623 is a single-chip microstepping motordriver with position controller and control/diagnostic interface. It is ready to build
dedicated mechatronics solutions connected remotely with a LIN master.
The chip receives positioning instructions through the bus and subsequently drives the motor coils to the desired position. The on-chip
position controller is configurable (OTP or RAM) for different motor types, positioning ranges and parameters for speed, acceleration
and deceleration. The advanced motion qualification mode enables verification of the complete mechanical system in function of the
selected motion parameters. The AMIS-30623 acts as a slave on the LIN bus and the master can fetch specific status information like
actual position, error flags, etc. from each individual slave node.
An integrated sensorless step-loss detection prevents the positioner from loosing steps and stops the motor when running into stall.
This enables silent, yet accurate position calibrations during a referencing run and allows semi-closed loop operation when approaching
the mechanical end-stops.
The chip is implemented in I2T100 technology, enabling both high voltage analog circuitry and digital functionality on the same chip.
The AMIS-30623 is fully compatible with the automotive voltage requirements.
2.0 Product Features
Motordriver
•
Microstepping technology
•
Sensorless step-loss detection
•
Peak current up to 800mA
•
Fixed frequency PWM current-control
•
Automatic selection of fast and slow decay mode
•
No external fly-back diodes required
•
14V/24V compliant
•
Motion Qualification Mode
Controller with RAM and OTP memory
•
Position controller
•
Configurable speeds, and acceleration
•
Input to connect optional motion switch
LIN interface
•
Both physical and data-link layers (conform to LIN rev. 1.3)
•
Field-programmable node addresses
•
Dynamically allocated identifiers
•
Full diagnostics and status information
Protection
•
Over-current protection
•
Under-voltage management
•
Open circuit detection
•
High-temp warning and management
•
Low-temp flag
•
LIN bus short-circuit protection to supply and ground
•
Lost LIN safe operation
Power Saving
•
Power-down supply current < 100µA
•
5V regulator with wake-up on LIN activity
EMI compatibility
•
LIN bus integrated slope control
•
HV outputs with slope control
AMI Semiconductor
– June 2006, Rev 3.0
www.amis.com
1
AMIS-30623 LIN Microstepping Motordriver
3.0 Applications
Data Sheet
The AMIS-30623 is ideally suited for small positioning applications. Target markets include: automotive (headlamp alignment, HVAC,
idle control, cruise control), industrial equipment (lighting, fluid control, labeling, process control, XYZ tables, robots) and building
automation (HVAC, surveillance, satellite dish, renewable energy systems). Suitable applications typically have multiple axes or require
mechatronic solutions with the driver chip mounted directly on the motor.
4.0 Ordering Information
Table 1: Ordering information
Part No.
AMIS-30623A AGA
AMIS-30623B AGA
AMIS-30623A ANA
AMIS-30623B ANA
Package
SOIC-20
SOIC-20
NQFP-32 (7 x 7 mm)
NQFP-32 (7 x 7 mm)
Peak Current
800 mA
800 mA
800 mA
800 mA
Temp. Range
-40°C…..125°C
-40°C…..125°C
-40°C…..125°C
-40°C…..125°C
Stop voltage low
threshold
Typ. 8.5V
Typ. 7.5V
Typ. 8.5V
Typ. 7.5V
Ordering
Code Tubes
N/A
N/A
N/A
N/A
Ordering
Code Tapes
N/A
N/A
N/A
N/A
5.0 Quick Reference Data
Table 2: Absolute Maximum Ratings
Parameter
Vbb
Vlin
Tamb
Tst
Vesd
(3)
Min.
-0.3
-80
(2)
Max.
+40
(1)
Unit
V
V
°C
°C
kV
kV
Supply voltage
Bus input voltage
Ambient temperature under bias
Storage temperature
Electrostatic discharge voltage on LIN pin
Electrostatic discharge voltage on other pins
+80
+150
+160
+4
+2
-50
-55
-4
-2
Notes :
(1) For limited time <0.5s
(2) The circuit functionality is not guaranteed.
(3) Human body model (100 pF via 1.5 kΩ, according to MIL std. 883E, method 3015.7)
Table 3: Operating Ranges
Parameter
Vbb
Supply voltage
Top
Operating temperature range
Vbb
≤
18V
Vbb
≤
29V
Min
+8
-40
-40
Max
+29
+125
+85
Unit
V
°C
°C
AMI Semiconductor
– June 2006, Rev 3.0
www.amis.com
2
AMIS-30623 LIN Microstepping Motordriver
Data Sheet
6.0 Contents
1.0 General Description.............................................................................................................................................................................. 1
2.0 Product Features .................................................................................................................................................................................. 1
8.0 Pin Out ................................................................................................................................................................................................. 6
10.0 DC Parameters................................................................................................................................................................................... 8
11.0 AC Parameters ................................................................................................................................................................................. 10
13.2 Maximum Velocity......................................................................................................................................................................... 13
13.5.1. Position Ranges .................................................................................................................................................................... 15
13.5.2. Secure Position ..................................................................................................................................................................... 15
14.2 Control Logic (Position Controller and Main control)..................................................................................................................... 16
14.4 LIN Interface ................................................................................................................................................................................. 16
15.1 Position Controller......................................................................................................................................................................... 17
15.1.1. Positioning and Motion Control.............................................................................................................................................. 17
15.1.3. Position Periodicity ................................................................................................................................................................ 19
15.2 Main Control and Register, OTP memory + ROM......................................................................................................................... 23
15.2.6. Temperature Management .................................................................................................................................................... 24
15.2.7. Autarkic functionality in under-voltage condition.................................................................................................................... 25
15.3.1. Current waveforms in the coils .............................................................................................................................................. 35
15.3.4. Motor Starting Phase............................................................................................................................................................. 36
15.3.5. Motor Stopping Phase........................................................................................................................................................... 36
15.3.7. Electrical Defect on Coils, Detection and Confirmation ......................................................................................................... 37
AMI Semiconductor
– June 2006, Rev 3.0
www.amis.com
3
AMIS-30623 LIN Microstepping Motordriver
Data Sheet
15.3.8. Motor Shutdown Mode .......................................................................................................................................................... 38
16.0 Lin Controller .................................................................................................................................................................................... 42
16.1 General Description ...................................................................................................................................................................... 42
16.2 Slave Operational Range for Proper Self Synchronization ........................................................................................................... 42
16.3.1. Analog Part............................................................................................................................................................................ 43
16.3.3. Electro Magnetic Compatibility .............................................................................................................................................. 43
16.4 Error Status Register .................................................................................................................................................................... 43
16.5 Physical Address of the Circuit ..................................................................................................................................................... 43
16.6 LIN Frames ................................................................................................................................................................................... 44
16.8 LIN lost behavior ........................................................................................................................................................................... 47
18.0 Resistance to Electrical and Electromagnetic Disturbances............................................................................................................. 63
20.1 Introduction to Soldering Surface Mount Packages ...................................................................................................................... 66
21.0 Company or Product Inquiries .......................................................................................................................................................... 67
22.0 Document History ............................................................................................................................................................................. 67
