DRV8143SQRXYRQ1

Overview

The DRV8143SQRXYRQ1 is an automotive-grade half-bridge driver designed for high-power applications. It operates within a supply voltage range of 4.5 V to 35 V, with an absolute maximum rating of 40 V. The device delivers a peak output current of 20 A and supports PWM frequencies up to 125 kHz. It features integrated current sensing without external shunt resistors and includes diagnostic capabilities for load open/short detection. The component is qualified to AEC-Q100 standards for temperature grade 1, functioning reliably between -40°C and +125°C.

Feature Summary

• Integrated current sensing eliminates the need for external shunt resistors, providing proportional load current output on the IPROPI pin.
• Advanced EMI control through configurable slew rates and spread-spectrum clocking capabilities.
• Comprehensive protection and diagnostics including overcurrent, overtemperature, and load fault detection with configurable fault responses.

Applications

• Automotive brushed DC motor control
• Automotive solenoid driving
• High-current actuator systems

Procurement Notes

Verify the specific suffix 'S' indicates the SPI interface variant when ordering. Confirm package type matches design requirements. Ensure compatibility with 3.3V or 5V logic inputs. Check for functional safety documentation availability if required for system certification. Validate thermal management solutions for sustained 20A operation.

Selection Notes

Select this model for applications requiring high current density in a compact VQFN-HR package. Consider the integrated current sense feature to reduce bill of materials cost and board space. Evaluate the EMI performance benefits of spread-spectrum options for noise-sensitive environments. Ensure the control interface supports SPI communication for configuration flexibility.

Part Context

This component belongs to the DRV814x-Q1 series of fully integrated half-bridge drivers. The series utilizes BiCMOS technology for robust power handling and thermal performance. Other variants in the family offer different packaging options like HVSSOP or alternative current ratings while maintaining similar functional architectures for scalable automotive designs.

Replacement Considerations

DRV8143HQRXYRQ1: Hardware-controlled variant with identical electrical specifications but different interface method.