AMIS-30622 I2C Microstepping Motordriver
Data Sheet
Table of Contents
1. Quick Reference Data
3
3
3
3
4
4
4
5
6
7
8
8
8
8
9
9
9
9.2.2.8 RAM Registers
9.2.2.9 Flags Table
9.2.2.10 Application Commands
9.2.2.11 Priority Encoder
9.2.2.12 Application Parameters Stored in
OTP Memory
18
1.1
1.2
Absolute Maximum Ratings
Operating Ranges
19
20
21
2. Block Diagram
3. Pin-out
4. Package Thermal Resistance
4.1 SO20
5. DC-Parameters
6. AC-Parameters
7. Typical Application
8. Positioning Data
23
24
25
25
25
25
26
26
9.2.2.13 OTP Memory Structure
9.2.3
Motordriver
9.2.3.1 Current Waveforms in the Coils
9.2.3.2 PWM Regulation
9.2.3.3 Motor Starting Phase
9.2.3.4 Motor Stopping Phase
9.2.3.5 Charge Pump Monitoring
9.2.3.6 Electrical Defect on Coils, Detection
and Confirmation
8.1
Stepping Modes
8.2
8.3
8.4
8.5
Maximum Velocity
Minimum Velocity
Acceleration and Deceleration
Positioning
26
27
27
9.2.4
Inter-IC Control (I2C) Bus
8.5.1
8.5.2
8.5.3
Position Ranges
Secure Position
Shaft
9.2.4.1 Physical Layer
9.2.4.2 Communication on 2-wire Serial Bus
Interface
9.2.4.3 Physical Address of the Circuit
9.2.4.4 Write Data to AMIS-30622
9.2.4.5 Read Data from AMIS-30622
9.2.4.6 Timing and Electrical Characteristics
of the Serial Interface
10
10
10
10
10
27
28
28
28
9. Functional Description
9.1.
Structure Description
9.1.1
9.1.2
Stepper Motordriver
Control Logic (Position Controller
and Main Control)
10
10
11
11
11
13
14
28
9.1.3
9.2
9.2.1
Miscellaneous
Functions Description
Position Controller
9.2.4.7 Description of Application Commands 29
9.2.4.8 Command Overview
9.2.4.9 Commands Description
29
29
34
34
9.2.1.1 Positioning and Motion Control
9.2.1.2 Position Initialization
9.2.1.3 External Switch and HW Pin
10. Features
10.1
Position Periodicity
11. Resistance to Electrical and Electromagnetic
Disturbances
9.2.2
Main Control and Register, OTP
Memory + RAM
34
34
34
34
35
35
35
35
15
15
15
15
15
15
16
17
11.1
11.2
11.3
11.4
11.5
Electrostatic Discharges
Schäffner Pulses
EMC
EMI
9.2.2.1 Power-up Phase
9.2.2.2 Reset State
9.2.2.3 Soft Stop
9.2.2.4 Thermal Shutdown Mode
9.2.2.5 Temperature Management
9.2.2.6 Battery Voltage Management
9.2.2.7 Motor Shutdown Mode
Power Supply Micro-Interruptions
12. Packages Outline
13. Conditioning
Document History
Version
2.0
2.1
2.2
2.3
Date of Version
March 4th, 2003
April 2nd, 2003
April 3rd, 2003
May 28th, 2003
AMI Semiconductor - Rev. 2.3
2
www.amis.com