AMIS-30622 Datasheet, PDF (3/42 Pages) AMI SEMICONDUCTOR – I2C Microstepping Motordriver

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. Position ranges ........................................................................................................12
8.5.2. Secure position ........................................................................................................13
8.5.3. Shaft ........................................................................................................................13
9. Functional description........................................................................................................14
9.1. Structure Description .....................................................................................................14
9.1.1. Stepper motordriver .................................................................................................14
9.1.2. Control logic (Position controller and Main control).................................................14
9.1.3. 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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