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微型步进电机驱动器AMIS30532C5321G
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Introduction The AMIS−30532 is a micro−stepping stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and an SPI interface with an external microcontroller. It has an on−chip voltage regulator， reset−output and watchdog reset， able to supply peripheral devices. The AMIS−30532 contains a current−translation table and takes the next micro−step depending on the clock signal on the “NXT” input pin and the status of the “DIR” （=direction） register or input pin. The chip provides a so−called “speed and load angle” output. This allows the creation of stall detection algorithms and control loops based on load−angle to adjust torque and speed. It is using a proprietary PWM algorithm for reliable current control. The AMIS−30532 is implemented in I2T100 technology， enabling both high−voltage analog circuitry and digital functionality on the same chip. The chip is fully compatible with the automotive voltage requirements. The AMIS−30532 is ideally suited for general−purpose stepper motor applications in the automotive， industrial， medical， and marine environment. With the on−chip voltage regulator it further reduces the BOM for mechatronic stepper applications.
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