DA7281-00V4C

Overview

The DA7281-00V4C is a low-power, wide-bandwidth haptic driver IC manufactured by Renesas Electronics. It supports multiple I²C addresses and drives both ERM and LRA actuators with frequency tracking up to 300Hz. The device features a 360nA idle power mode with full I²C control and memory retention. It offers low-latency direct drive for haptics, on-the-fly diagnostics, and custom waveform sequences. The component operates within a specified voltage range and is designed for applications requiring complex touch effects.

Feature Summary

• Supports up to four different I²C addresses for multi-device systems
• Provides constant resonance frequency tracking through continuous current monitoring
• Features ultra-low power consumption with 360nA idle current
• Enables wideband effects and dual-resonant system support

Applications

• Smartphones
• Gaming devices
• Wearables
• Personal medical equipment
• Touch displays

Procurement Notes

Verify the exact suffix against official Renesas documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing I²C bus configurations due to address pin functionality. Confirm moisture sensitivity levels and storage conditions prior to assembly. Check for any specific ordering suffixes that may affect availability or packaging quantity in your region.

Selection Notes

Select this component when multiple haptic drivers are required on a single I²C bus. It is suitable for designs needing low latency from deep sleep states. Consider its ability to drive LRAs off-resonance for custom effects. Evaluate its power consumption benefits for battery-operated devices. Ensure the host processor can utilize the provided HAL for software development.

Part Context

The DA7281 belongs to the DA7281 series of haptic drivers. It differs from related models like the DA7280 and DA7282 by utilizing trigger input pins as I²C address pins. This design allows for greater system flexibility in compact layouts. The series is part of Renesas' portfolio for power management and motor control solutions.

Replacement Considerations

Consult official substitution lists for verified alternatives. Generic replacements may not support the unique multi-address feature. Verify electrical parameters and pinout compatibility before switching components.