DRV2667RGPT

Overview

The DRV2667RGPT is a piezo haptic driver manufactured by Texas Instruments, housed in a QFN-20 package. It integrates a 105V boost converter and digital front end to drive high-voltage piezo actuators. The device supports I2C bus control up to 400kHz and includes 2KB internal waveform memory with a 100-byte FIFO interface. It operates on a supply voltage range of 3V to 5.5V with a typical operating current of 5mA. The output can reach 200Vpp, enabling the driving of capacitive loads up to 100nF at 200Vpp and 300Hz. The component functions within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 105V boost converter with adjustable voltage and current limits for efficient piezo actuation
• Features a digital front end with I2C compatibility and advanced waveform synthesizer capabilities
• Includes 2KB internal waveform memory and a 100-byte FIFO for streamlined host processor interaction
• Provides fully differential output capable of driving high-voltage piezo haptic actuators

Applications

• Mobile phones and tablets
• Portable computers
• Keyboards and mice
• Electronic gaming devices
• Touch enabled devices

Procurement Notes

Verify the specific suffix RGPT corresponds to the QFN-20 package and reel packaging configuration required for your assembly process. Confirm that the design accommodates the 3V to 5.5V supply voltage requirements and the -40°C to +85°C operating temperature range. Ensure I2C bus timing aligns with the specified 400kHz maximum frequency for reliable communication with the digital front end.

Selection Notes

Select this component when designing systems requiring integrated high-voltage generation for piezo haptics without external boost inductors. The inclusion of internal waveform memory reduces host CPU load compared to solutions requiring continuous PWM streaming. Consider the QFN-20 footprint constraints and thermal dissipation characteristics suitable for the target application's power density requirements.

Part Context

This part belongs to the DRV2667 series of piezo haptic drivers from Texas Instruments. It is designed to simplify the implementation of high-definition haptic feedback in compact consumer electronics. The integration of the boost switch, power diode, and differential amplifier into a single chip distinguishes it from discrete solutions or simpler linear drivers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.