AMIS-30421 - Micro-Stepping Stepper Motor Bridge Controller
Name Pin Description GXBL 2 Gate of external NMOS FET of the X bridge bottom left side MOTXP 3 Positive end of phase X *coil GXTL 4 Gate of external NMOS FET of the X bridge top left side GXBR 5 Gate of external NMOS FET of the X bridge bottom right side MOTXN 6 Negative end of p
AMIS-30421 Micro-Stepping Stepper Motor Bridge Controller Introduction The AMIS 30421 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 2 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 in
AMIS-30421 Features
* Dual H
* Bridge Pre
* Drivers for 2
* Phase Stepper Motors
* Programmable Current via SPI
* On
* chip Current Translator
* SPI Interface
* Speed and Load Angle Output
* 8 Step Modes from Full Step up to 64 Micro
* Steps
