The AMIS30421 is a micro stepping stepper motor bridge controller for large current range bipolar applications. The chip interfaces via a SPI interface with an external controller in order to control two external power NMOS H bridges. It has an on chip voltage regulator, current sensing, self adapting PWM controller and pre driver with smart slope control switching allowing the part to be EMC compliant with industrial and automotive applications. It uses a proprietary PWM algorithm for reliable current control.
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Features |
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Benefits |
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8 step modes from full step to 64 micro steps
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Precise control of a high power stepper motor with extended velocity profile
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Programmable slope control
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Minimizes EMI and provides optimal motor operation
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Applications |
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End Products |
- High current bipolar stepper motors
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- Textile equipment
- High power actuators
- Industrial and manufacturing equipment
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Case Outlines
485BY
Packages
