The DRV2700 device is a single-chip piezo driver with an integrated 105-V boost switch, integrated power diode, and integrated fully-differential amplifier. This versatile device is capable of driving both high-voltage and low-voltage piezoelectric loads. The input signal can be either differential or single-ended and AC or DC coupled. The DRV2700 device supports four GPIO-controlled gains: 28.8 dB, 34.8 dB, 38.4 dB, and 40.7 dB.
The boost voltage is set using two external resistors. The voltage applied to the switch pin (SW) and the VDD pin have been sepearted to support independant batteries. The boost current-limit is programmable through the R (REXT) resistor. The boost converter architecture allows the user to optimize the DRV2700 circuit for a given inductor based on the desired performance requirements. Additionally, this boost converter is based on a hysteretic architecture to minimize switching losses and therefore increase efficiency.
A typical startup time of 1.5 ms makes the DRV2700 device an ideal piezo driver for coming out of sleep quickly. Thermal overload protection prevents the device from damage when overdriven.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | DRV2700 Industrial Piezo Driver With Integrated Boost Converter datasheet (Rev. C) | PDF | HTML | 20 Nov 2015 |
| More literature | DRV8662, DRV2700, DRV2665, and DRV2667 Configuration Guide (Rev. A) | PDF | HTML | 08 Dec 2021 | |
| EVM User's guide | DRV2700EVM User's Guide (Rev. C) | 05 Jun 2018 | ||
| More literature | Piezo Haptics With Integrated Waveforms: DRV2605L-Q1 and DRV2700 | 27 Sep 2017 | ||
| Technical article | Four tech trends that improve the driver experience | 06 Jan 2017 | ||
| Technical article | Are TI drivers stressing your piezo? | 14 May 2015 | ||
| User guide | DRV2700EVM Quick Start Guide | 05 Feb 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
The DRV2700EVM is an evaluation module for the DRV2700. The DRV2700 is intended for high voltage piezo applications typically used in Industrial Applications. The differential 200Vpp output capability as well as the 100V single ended output can be evaluated using this EVM. The available pin (...)
The DRV2700EVM-HV500 is an evaluation module for the DRV2700 used in a flyback converter circuit. The DRV2700 is intended for high voltage piezo applications typically used in Industrial Applications. The integrated high voltage switch enables for a small solution size circuit that can drive 500V (...)
Simply connect TI Piezo Driver evaluation modules (EVM) to Piezo Control Console via (...)
| Package | Pins | Download |
|---|---|---|
| VQFN (RGP) | 20 | View options |
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