AMIS-30521 Datasheet (AMI SEMICONDUCTOR) - Micro-stepping Motor Driver

AMIS-30521, Micro-stepping Motor Driver

Table 2: Pin List and Description Name Pin DO 31 www.DataSheet4U.com VDD 32 GND 1 DI 2 CLK 3 NXT 4 DIR 5 ERRB 6 SLA 7 CPN 9 CPP 10 VCP 11 CLR 12 CSB 13 VBB 14 MOTYP 15, 16 GND 17, 18 MOTYN 19, 20 MOTXN 21, 22 GND 23, 24 MOTXP 25, 26 VBB 27 / 8, 28, 30 TST0 29 Description SPI data output Logic Suppl

AMIS-30521 Micro-stepping Motor Driver Data Sheet 1.0 Introduction The AMIS-30521 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.

The AMIS-30521 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” o

AMIS-30521 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 outp