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.
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | DRV2700 Industrial Piezo Driver With Integrated Boost Converter datasheet (Rev. C) | PDF | HTML | 2015年 11月 20日 |
| Application note | DRV8662, DRV2700, DRV2665, and DRV2667 Configuration Guide (Rev. A) | PDF | HTML | 2021年 12月 8日 | |
| Application note | Piezo Haptics With Integrated Waveforms: DRV2605L-Q1 and DRV2700 | 2017年 9月 27日 | ||
| Technical article | Four tech trends that improve the driver experience | PDF | HTML | 2017年 1月 6日 | |
| Technical article | Are TI drivers stressing your piezo? | PDF | HTML | 2015年 5月 14日 | |
| User guide | DRV2700EVM Quick Start Guide | 2015年 2月 5日 |
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DRV2700EVM 是適用於 DRV2700 的評估模組。DRV2700 針對工業應用中典型的高電壓壓電應用。可使用此 EVM 評估差動 200Vpp 輸出功能及 100V 單端輸出。可用的接腳引出加上板載 MSP430，允許在現有系統中進行原型設計。
DRV2700EVM-HV500 是適用於 DRV2700 在返馳式轉換器電路中使用的評估模組。DRV2700 針對工業應用中典型的高電壓壓電應用。整合式高電壓開關允許小巧的解決方案尺寸電路，可驅動 500V 單端。板載 MSP430 可進行數位控制及快速原型設計。
Piezo Control Console (PCC) is a development and test suite for TI Piezo Drivers. Piezo Control Console is intended to support the evaluation of piezoelectric actuators in applications for motion control or audio.
Simply connect TI Piezo Driver evaluation modules (EVM) to Piezo Control Console via (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGP) | 20 | Ultra Librarian |
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。