Motor pre-driver, microstepping stepper, with motor bridge control

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Overview

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.

  • High current bipolar stepper motors
  • Textile equipment
  • High power actuators
  • Industrial and manufacturing equipment
  • 8 step modes from full step to 64 micro steps
  • Programmable slope control

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Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

VM Min (V)

VM Max (V)

VCC Min (V)

VCC Max (V)

IO Max (A)

IO Peak Max (A)

Step Resolution

Control Type

Current Sense

Fault Detection

Reference Price

AMIS30421C4211RG

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Last Shipments

CAD Model

Pb

A

H

P

QFN-44

3

260

REEL

2500

N

6

40

-

-

10

10

1/64

SPI

External Resistor

UVLO

Price N/A

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