BOS1211AQR

Overview

The BOS1211AQR is a fully integrated piezo motor driver manufactured by Boreas Technologies, designed for haptic feedback and sensing applications. It operates on a 9V to 16V supply voltage and supports load voltages up to 120V. The device utilizes Power MOSFET technology and features an SPI interface for digital control. Packaged in a 24-VFQFN (4x4 mm) with an exposed pad, it is rated for automotive use under AEC-Q100 standards and functions within a junction temperature range of -40°C to 150°C.

Feature Summary

• Fully integrated driver combining control logic and power stages for piezo actuators
• Digital front-end controlled via Serial Peripheral Interface (SPI)
• Automotive-grade qualification compliant with AEC-Q100 standards
• High thermal tolerance supporting extended junction temperature operation

Applications

• Haptic feedback systems
• Piezo actuator sensing

Procurement Notes

Verify the specific suffix 'AQR' corresponds to the required package variant and quality grade. Confirm that the 24-VFQN footprint matches the PCB layout design. Ensure the SPI communication protocol aligns with the host controller specifications. Validate that the 9V-16V supply range meets the system power requirements. Check for any specific ordering codes related to tape and reel quantities.

Selection Notes

Select this component when a compact, automotive-grade solution for piezo actuation is required. The integrated nature reduces external component count compared to discrete solutions. The SPI interface allows for precise digital control of the drive waveform. Consider the 120V load capability for high-voltage piezo elements. The wide operating temperature range suits demanding environmental conditions.

Part Context

This part belongs to the Boreas Technologies portfolio of piezo haptic drivers. It is distinct from the BOS1921 series, which typically operates at lower supply voltages (3V to 5.5V). The BOS1211AQR is specifically engineered for higher voltage piezo applications requiring robust automotive reliability and digital integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer directly for qualified alternatives or cross-reference options based on pin compatibility and electrical specifications.

FAQ

What type of motor does the BOS1211AQR support?

It is designed specifically for piezo motors and actuators.

Is the BOS1211AQR suitable for automotive applications?

Yes, it is qualified to the AEC-Q100 standard for automotive use.

How is the device controlled?

It uses a Serial Peripheral Interface (SPI) for digital control and configuration.