DA7280-00F42-A

Overview

The DA7280-00F42-A is a high-definition haptic driver IC from the Renesas DA728x family, designed for precise control of Linear Resonant Actuators (LRA) and Eccentric Rotating Mass (ERM) motors. It features an I²C interface for configuration and supports integrated closed-loop control with automatic resonant frequency tracking. The device operates within a supply voltage range of 2.5V to 5.5V and delivers up to 300mA output current. It includes built-in safety mechanisms such as over-temperature and over-current protection, ensuring reliable operation in mobile, wearable, and industrial applications.

Feature Summary

• Supports closed-loop control with automatic LRA resonant frequency tracking
• Integrates waveform engine for complex haptic sequence generation
• Includes comprehensive safety protections against thermal and electrical faults

Applications

• Smartphones and tablets
• Wearable devices
• Industrial HMI interfaces

Procurement Notes

Verify the specific suffix 'A' against official Renesas documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing I²C bus configurations and power supply rails before integration. Cross-reference the part number with the latest datasheet revision to avoid discrepancies in pinout or electrical characteristics.

Selection Notes

Select this component when high-fidelity tactile feedback is required for consumer electronics. It is suitable for designs needing precise motor control without external PWM generation. Consider the QFN-24 package for space-constrained PCB layouts. Evaluate the need for automatic frequency tracking to simplify calibration during production.

Part Context

The DA7280 belongs to the DA728x series of high-definition haptic drivers by Renesas Electronics. This family replaces traditional analog PWM drivers with digital closed-loop solutions. The DA7280 specifically targets applications requiring rich tactile experiences through advanced waveform synthesis and real-time feedback adjustment.

Replacement Considerations

DA7280-00FVC

FAQ

Does the DA7280 support both LRA and ERM motors?

Yes, the DA7280 is designed to drive both Linear Resonant Actuators (LRA) and Eccentric Rotating Mass (ERM) motors.

What is the maximum output current of the DA7280?

The DA7280 can deliver a maximum output current of 300mA.