AMIS-30622
Table of contents
1. Quick Reference Data...........................................................................................................6
1.1. Absolute Maximum Ratings .............................................................................................6
1.2. Operating Ranges............................................................................................................6
2. Block Diagram.......................................................................................................................6
3. Pin-out....................................................................................................................................7
4. Package thermal resistance.................................................................................................7
4.1. SO20................................................................................................................................7
5. DC-Parameters ......................................................................................................................8
6. AC-Parameters ......................................................................................................................9
7. Typical application..............................................................................................................10
8. Positioning data ..................................................................................................................11
8.1. Stepping modes.............................................................................................................11
8.2. Maximum velocity ..........................................................................................................11
8.3. Minimum velocity ...........................................................................................................11
8.4. Acceleration and deceleration .......................................................................................12
8.5. Positioning .....................................................................................................................12
8.5.1.
8.5.2.
8.5.3.
Position ranges........................................................................................................12
Secure position........................................................................................................13
Shaft ........................................................................................................................13
9. Functional description........................................................................................................14
9.1. Structure Description .....................................................................................................14
9.1.1.
9.1.2.
9.1.3.
Stepper motordriver.................................................................................................14
Control logic (Position controller and Main control).................................................14
Miscellaneous..........................................................................................................14
9.2. Functions description.....................................................................................................15
9.2.1. Position controller ....................................................................................................15
9.2.1.1. Positioning and motion control...........................................................................15
9.2.1.2. Position initialization...........................................................................................17
9.2.1.3. External switch and HW pin...............................................................................18
9.2.2.
Main control and register, OTP memory + RAM .....................................................19
9.2.2.1. Power-up phase.................................................................................................19
9.2.2.2. Reset State ........................................................................................................19
9.2.2.3. Soft Stop ............................................................................................................19
9.2.2.4. Thermal shutdown mode....................................................................................19
9.2.2.5. Temperature management ................................................................................19
9.2.2.6. Battery voltage management.............................................................................20
9.2.2.7. Motor shutdown mode........................................................................................21
9.2.2.8. RAM Registers...................................................................................................23
9.2.2.9. Flags table..........................................................................................................24
9.2.2.10. Application Commands ....................................................................................25
9.2.2.11. Priority encoder................................................................................................26
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