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AMIS30421C4211RG
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Product Detailed Parameters
- Description：IC MTR DRVR BIPOLAR 3-3.6V 44QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Tape & Reel (TR)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Controller - Commutation, Direction Management
- Output Configuration：Pre-Driver - Half Bridge (4)
- Interface：SPI
- Technology：-
- Step Resolution：1 ~ 1/64
- Applications：General Purpose
- Current - Output：-
- Voltage - Supply：3V ~ 3.6V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：44-VFQFN Exposed Pad
- Supplier Device Package：44-QFN (7x7)
- Grade：-
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Overview
The AMIS30421C4211RG is a bipolar stepper motor driver IC from onsemi, designed for precise motion control applications. It operates within a supply voltage range of 3V to 3.6V and supports step resolutions from full step up to 1/64 microstepping. The device features an SPI interface for configuration and control, including commutation and direction management. Packaged in a 44-QFN (7x7mm) with an exposed pad, it is rated for junction temperatures between -40°C and 125°C. This component serves as the core controller for driving bipolar stepper motors in compact electronic systems.
Feature Summary
- Integrated SPI interface for digital control and configuration
- Supports variable step resolution up to 1/64 microstepping
- Built-in commutation and direction management logic
- Four half-bridge pre-drivers for bipolar motor drive
Applications
- Precision positioning systems requiring microstepping
- Compact industrial automation controllers
- Medical equipment with strict size constraints
- Automotive interior actuation modules
Procurement Notes
Verify the specific suffix 'RG' against official onsemi documentation to confirm package variant or tape/reel specifications. Confirm current availability status as previous listings indicate potential end-of-life phases for related variants. Ensure compatibility with existing PCB footprints for the 44-QFN package before procurement.
Selection Notes
Select this component when a low-voltage (3V-3.6V) solution is required for bipolar stepper motors. The integrated SPI interface simplifies system architecture by reducing pin count compared to parallel interfaces. Consider the thermal performance of the QFN package with exposed pad for heat dissipation in enclosed environments.
Part Context
This part belongs to the AMIS30421 family of stepper motor drivers. It shares functional similarities with other variants like the AMIS30421C4211G but may differ in packaging or reel specifications indicated by the suffix. The family is characterized by high integration, combining power drivers with digital control logic in a single small footprint.
Replacement Considerations
Direct substitutes include other AMIS30421 variants such as AMIS30421C4211G, provided the package and electrical characteristics match. Verify that any replacement maintains the same 44-QFN footprint and SPI compatibility.
