DRV2667RGPR

压电式触觉驱动器具有升压，数字前端和内部波形存储器 Piezo Haptic Driver with Boost, Digital Front End, and Internal Waveform Memory

Description

The DRV2667 device is a piezo haptic driver with integrated 105-V boost switch, integrated power diode, integrated fully-differential amplifier, and integrated digital front end capable of driving both high-voltage and low-voltage piezo haptic actuators. This versatile device supports HD haptics through the I2C port or through the analog inputs.

The digital interface of the DRV2667 device is available through an I2C-compatible bus. A digital interface relieves the costly processor burden of the PWM generation or additional analog channel requirements in the host system. Any writes to the internal FIFO will automatically wake up the device and begin playing the waveform after the 2-ms internal startup procedure. When the data flow stops or the FIFO under-runs, the device will automatically enter a pop-less shutdown procedure.

Features

• Integrated Digital Front End

   – Up to 400-kHz I2C Bus Control

   – Advanced Waveform Synthesizer

   – 2-kB Internal Waveform Memory

   – 100-Byte Internal FIFO Interface

   – Immersion TS5000-Compliant

   – Optional Analog Inputs

• High-Voltage Piezo-Haptic Driver

   – Drives up to 100 nF at 200 VPP and 300 Hz

   – Drives up to 150 nF at 150 VPP and 300 Hz

   – Drives up to 330 nF at 100 VPP and 300 Hz

   – Drives up to 680 nF at 50 VPP and 300 Hz

   – Differential Output

• 105-V Integrated Boost Converter

   – Adjustable Boost Voltage

   – Adjustable Boost Current Limit

   – Integrated Power FET and Diode

   – No Transformer Required

• 2-ms Fast Start Up Time

• 3- to 5.5-V Wide Supply Voltage Range

• 1.8 V-Compatible, VDD-Tolerant Digital Pins

Applications

• Mobile Phones and Tablets

• Portable Computers

• Keyboards and Mice

• Electronic Gaming

• Touch Enabled Devices