Table 2: Pin List and Description Name Pin Description DO 31 SPI data output VDD 32 Logic supply output (needs external decoupling capacitor) GND 1 Ground, heat sink DI 2 SPI data in www.DataSheet4U.com CLK 3 SPI clock input NXT 4 Next micro-step input DIR 5 Direction input ERRB 6 Error output SLA 7
Key Features
Dual H-Bridge for 2-phase stepper motors.
Programmable peak-current up to 1.6A using a 5-bit current DAC.
On-chip current translator.
SPI interface.
Speed and load angle output.
Seven step modes from full step up to 32 micro-steps.
Fully integrated current-sense.
PWM current control with automatic selection of fast and slow decay.
Full PDF Text Transcription for AMIS-30522 (Reference)
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AMIS-30522. For precise diagrams, and layout, please refer to the original PDF.
AMIS-30522 Micro-stepping Motor Driver Data Sheet 1.0 Introduction The AMIS-30522 is a micro-stepping stepper motor driver for bipolar stepper motors. The chip is connect...
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g stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and a SPI interface with an external microcontroller. It has an on-chip voltage regulator, reset-output and watchdog reset, able to supply peripheral devices. AMIS-30522 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 i