Haptic driver for piezo with integrated 105-V boost converter, waveform memory & DAC
Product details
Parameters
Package | Pins | Size
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
- Programable 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
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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.
The DRV2667 device also includes waveform memory to store and recall waveforms with minimal latency as well as an advanced waveform synthesizer to construct complex haptic waveforms with minimal memory usage. This provide a means of hardware acceleration, relieving the host processor of haptic generation duties as well as minimizing bus traffic over the haptic interface.
The boost voltage is set using two external resistors, and the boost current limit is programmable through the REXT resistor. A typical start-up time of 2 ms makes the DRV2667 an ideal piezo driver for fast haptic responses. Thermal overload protection prevents the device from being damaged when overdriven.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The DRV-ACC16-EVM tool allows users to easily measure and characterize haptic feedback, acceleration, and vibration strength. The tool captures acceleration using an accelerometer IC and outputs X, Y, and Z axis data as an analog signal that can be measured by an oscilloscope. With the (...)
Features
- Measure haptic feedback, acceleration, and vibration strength
- Analog X, Y, and Z axis acceleration measurement outputs
- Two-board flexible PCB design for easy acceleration measurement
- 5V USB powered
Description
The DRV2667 is a digitally controlled, high-voltage driver designed to control Piezo actuators with voltages between 40 Vpp and 200 Vpp. The DRV2667 eliminates many design complexities of driving Piezo by including an integrated 105V boost converter and 200-Vpp differential output amplifier. In (...)
Features
Software development
Simply connect TI Haptic Driver evaluation modules (EVM) to Haptic Control (...)
Features
- Supports evaluation of haptic actuators including ERM, LRA, and Piezo actuators.
- Includes device management features including a quick setup console, complete register map access, and RAM management.
- Works with TI evaluation boards or can be connected directly to TI haptic drivers on custom boards.
- USB (...)
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- (...)
Design tools & simulation
Features
- Piezo actuator model recommendation
- Boost voltage and forward voltage calculation
- Feedback resistor and boost current limit resistor values calculation
- Current requirements approximation
- Input capacitor and output capacitor capability calculation
Reference designs
Design files
Design files
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download TIDA-00408 BOM (Electronics).pdf (109KB) -
download TIDA-00408 BOM (Mechanical).pdf (202KB) -
download TIDA-00408 PCB.pdf (163KB) -
download TIDA-00408 CAD Files.zip (5911KB) -
download TIDA-00408 Gerber.zip (468KB)
Design files
-
download TIDA-00169 BOM (SAT0059).pdf (128KB) -
download TIDA-00169 BOM (SAT0096).pdf (96KB) -
download TIDA-00169 Altium (SAT0059).zip (2011KB) -
download TIDA-00169 Altium (SAT0096).zip (1308KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
QFN (RGP) | 20 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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