AMIS30521

Product Overview

AMIS30521 is commonly associated with onsemi / AMI Semiconductor AMIS-30521, a micro-stepping motor driver designed for bipolar stepper motor control applications. The device integrates a dual H-bridge power stage, current translation table, SPI interface and control inputs for direction and next-step operation. With programmable motor current, proprietary PWM current control, speed and load angle output, and industrial operating capability, it is suitable for precision motion control, automation equipment, medical devices, industrial actuators and compact embedded motor-drive systems.

Key Features

• Manufacturer: onsemi / AMI Semiconductor

• Part Number: AMIS30521 / AMIS-30521

• Related Automotive Version: NCV70521

• Device Type: Micro-stepping stepper motor driver

• Product Category: Motor driver IC / stepper motor driver

• Motor Type: Bipolar stepper motor

• Output Stage: Dual H-bridge for 2-phase stepper motors

• Control Interface: SPI interface plus I/O control pins

• Step Control: NXT input pin for next micro-step control

• Direction Control: DIR register or direction input pin support

• Current Control: Built-in current translation table and proprietary PWM current control

• Programmable Current: Programmable peak current up to 1.2A continuous, with higher short-duration capability depending on operating conditions

• Micro-Stepping Function: Supports micro-step motor current regulation for smooth motion control

• Feedback Feature: Speed and Load Angle output for stall detection and load-angle based control loops

• Process Technology: I2T100 technology integrating high-voltage analog and digital circuitry on one chip

• Supply / Motor Voltage: Automotive-compatible voltage requirements; common listings show motor supply range up to 30V

• Package: 32-pin surface-mount package commonly listed

• Pin Count: 32 pins

• Mounting Type: Surface mount

• Operating Temperature Range: -40°C to +125°C commonly listed for related package versions

• Typical Use: Industrial stepper motor control, precision actuators, automation equipment and embedded motion systems

• Key Features: Dual H-bridge, SPI control, micro-stepping current translator, PWM current regulation and load-angle feedback

• Datasheet PDF: https://www.mouser.com/datasheet/2/308/AMIS-30521-D-111157.pdf

• Additional Datasheet Reference: https://www.alldatasheet.com/datasheet-pdf/pdf/281588/ONSEMI/AMIS-30521.html

• Ordering / Packaging Note: Buyers should verify the full onsemi ordering code, package type, top marking, motor voltage, current setting, temperature grade, reel packaging, RoHS status and thermal PCB layout before production use.

Applications

AMIS30521 / AMIS-30521 can be used in electronic systems that require controlled bipolar stepper motor motion with micro-stepping performance. Typical applications include industrial automation equipment, medical devices, laboratory instruments, marine electronics, robotics, textile machines, valve actuators, camera positioning systems, office automation, test equipment, embedded motion modules and repair projects. It is also suitable for BOM review where an onsemi / AMI Semiconductor micro-stepping stepper motor driver with SPI control is required.

Quality & Sourcing

Antrex Electronics can support AMIS30521 / AMIS-30521 sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, buyers can provide quantity, target price, required onsemi suffix, package type, motor voltage, current requirement, date code and application information for faster quotation support.

For quality control, Antrex Electronics can help arrange product photos, label review, visual inspection, pin inspection and third-party testing support when required. OEMs, EMS providers, automation equipment manufacturers, medical electronics suppliers, repair centers and electronic component buyers are welcome to send BOM lists or hard-to-find motor driver IC requests for sourcing assistance.