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Product Detailed Parameters
- Description：IC MTR DRVR BIPOLAR 6-29V 32QFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：SPI, Step/Direction
- Technology：Power MOSFET
- Step Resolution：1 ~ 1/32
- Applications：General Purpose
- Current - Output：-
- Voltage - Supply：6V ~ 29V
- Voltage - Load：6V ~ 29V
- Operating Temperature：-45°C ~ 175°C (TJ)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：32-QFNW (5x5)
- Grade：-
- Qualification：-
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Overview
The NCV70514MW003AR2G is a bipolar stepper motor driver manufactured by onsemi, designed for automotive applications. It operates within a supply voltage range of 6 V to 29 V and supports an operating temperature range from -40 °C to +125 °C. The device is housed in a 32-pin QFN package (MW variant) and complies with AEC-Q100 qualification standards. It features micro-stepping capabilities and integrates a voltage regulator for internal logic power.
Feature Summary
- Integrated bipolar stepper motor control with micro-stepping functionality
- Automotive-grade reliability compliant with AEC-Q100 standards
- Wide operating voltage range suitable for 12V and 24V automotive systems
- High-temperature operation capability up to 125 °C
Applications
- Automotive seat adjustment actuators
- Vehicle mirror positioning systems
- Thermal management fan control in automotive environments
- General industrial stepper motor control requiring high temperature stability
Procurement Notes
Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific suffix AR2G matches project requirements for tape and reel packaging. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent package damage during soldering processes.
Selection Notes
Select this component when bipolar stepper motor control is required in harsh thermal environments. The integrated voltage regulator simplifies board design by eliminating external logic supply components. Consider the 32-pin QFN footprint for space-constrained PCB layouts requiring surface-mount assembly.
Part Context
This part belongs to the NCV70514 series of stepper motor drivers from onsemi. The series focuses on robust performance for automotive and industrial sectors. The MW003AR2G designation specifies the package type, stepping resolution configuration, and packaging format within the broader product family.
Replacement Considerations
Direct substitutes include other NCV70514 variants such as NCV70514MW004AR2G or NCV70514MW007R2G, depending on specific stepping resolution and packaging needs. Cross-reference pinouts and electrical characteristics before substitution.
