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Product Detailed Parameters
- Description：IC MTR DRV BIPLR 4.5-5.5V 24SOIC
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (8)
- Interface：SPI
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：40mA
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Load：6.5V ~ 26V
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：24-SOIC
- Grade：Automotive
- Qualification：-
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Overview
The MC33970DWR2 is a fully integrated, dual bipolar stepper motor driver IC manufactured by NXP USA Inc. It features an SPI-controlled interface for precise command execution and includes built-in control and power stages within a single package. The device operates within a supply voltage range of 4.5V to 5.5V and is housed in a 24-SOIC surface-mount package with a width of 7.50mm. Designed for high reliability, it complies with EU environmental standards including ROHS certification and the REACH directive.
Feature Summary
- Fully integrated design combining control logic and power stage in a single monolithic IC
- Serial Peripheral Interface (SPI) controlled operation for simplified system integration
- Optimized specifically for driving bipolar stepper motors
Applications
- Precision positioning systems requiring dual-axis control
- Industrial automation equipment utilizing bipolar stepper actuators
- Embedded motion control modules with limited board space
Procurement Notes
Verify component authenticity through authorized NXP distributors or certified agents. Confirm that the specific revision matches project requirements, as this part number is listed as obsolete. Ensure handling procedures comply with electrostatic discharge (ESD) protection standards during installation. Cross-reference official datasheets for pinout compatibility before integration into existing designs.
Selection Notes
Select this component when a compact, SPI-driven solution for bipolar stepper motors is required. The integrated nature reduces external component count compared to discrete driver solutions. Consider the 24-SOIC package constraints for thermal management and PCB layout. Verify that the 4.5V to 5.5V operating range aligns with the target system's power supply architecture.
Part Context
This IC belongs to the MC3397x family of motor drivers designed for embedded applications. It represents a consolidated approach to motor control by merging digital logic and analog power stages. The series is characterized by its reliance on serial communication protocols rather than parallel interfaces, facilitating easier wiring in dense electronic assemblies.
Replacement Considerations
As the MC33970DWR2 is marked obsolete, evaluate current available alternatives from NXP or compatible third-party manufacturers. Check for functional equivalence regarding SPI protocol support and bipolar motor drive capability. Ensure substitute packages match the 24-SOIC footprint or require adapter solutions.
