TI Introduces Industry's Most Integrated Piezo Haptic Driver for Realistic HD Touchscreen Effects
Published2013.06.05 19:59
DALLAS, May 31, 2013 – Texas Instruments Incorporated (TI) ( NASDAQ: TXN) today introduced the industry’s most integrated piezo haptic driver for high-definition consumer, automotive and industrial touchscreen applications. The new DRV2667 integrates a digital interface, a 15-V to 105-V integrated boost converter, power diodes and a 40-V to 200-V peak-to-peak (Vpp) fully-differential amplifier in a single-chip solution that is half the size of competing solutions. The DRV2667 also features an I2C-controlled digital playback engine, offloading the host processor from generating haptic effects. (For more detailed product information and sample ordering, visit www.ti.com/drv2667-pr-kr )
Additionally, the DRV2667 can implement Hi-Fi (highest fidelity) HD haptic effects in various types of products such as smartphones, tablets, home appliances, and automotive central information displays.
Key Features and Benefits of DRV2667
• High level of integration: Integrated digital waveform generation, high-voltage drive and 2KB RAM eliminate the need for external components, and allow haptic waveform storage and instant recall. The driver can play back haptic effects in real time, including those from Immersion’s TouchSense® 5000 haptic effects library.
• Realistic User Experience: The digital interface and 2ms startup enable faster haptic effect response times, enabling more realistic HD tactile experiences that are closer to specific events, surfaces or effects. This allows users to realistically experience the plucking of a guitar string, the feel of turning a page, the pressing of a keyboard or mechanical button, and various game effects.
• Higher vibration intensity: The high-voltage differential amplifier can generate up to 200 Vpp output drive, which is more than 6 times higher vibration intensity than competing solutions, supporting a wider range of piezo actuator types.
• Smallest solution size: The combination of the DRV2667 and an external inductor provides the industry’s smallest solution size at 10 mm x 11 mm, half the size of competing solutions that require an external transformer and other discrete components.
Tools and Support
The DRV2667EVM is available for a suggested retail price of $99. This evaluation module provides a user guide and allows for complete standalone and in-system evaluation, including the programmable MSP430G2553 ValueLine microcontroller, piezo actuator, sample waveforms, and capacitive touch buttons.
Additionally, engineers can ask questions and get help from TI experts in the Touch Forum in the TI E2E™ Community.
Availability and Price
The DRV2667 is available now in a 20-pin 4 mm x 4 mm x 0.9 mm QFN package with a suggested retail price of $2.95 in 1,000-unit quantities.
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