DRV2700
- 100-V Boost or 1-kV Flyback Configuration
- ±100-V Piezo Driver in Boost + Amplifier Configuration
- 4 GPIO-Adjustable Gains
- Differential or Single-Ended Output
- Low-Voltage Control
- AC and DC Output Control
- 0 to 1-kV Piezo Driver in Flyback Configuration
- Low-Voltage Control
- AC and DC Output Control
- Integrated Boost or Flyback Converter
- Adjustable Current-Limit
- Integrated Power FET and Diode
- Fast Startup Time of 1.5 ms
- Wide Supply-Voltage Range of 3.3 to 5.5 V
- 4-mm × 4-mm × 0.9-mm VQFN package
- 1.8-V Compatible Digital Pins
- Thermal Protection
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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DRV2700 Industrial Piezo Driver With Integrated Boost Converter datasheet (Rev. C) | PDF | HTML | 2015/11/20 | ||
| 應用說明 | DRV8662, DRV2700, DRV2665, and DRV2667 Configuration Guide (Rev. A) | PDF | HTML | 2021/12/8 | |||
| 應用說明 | Piezo Haptics With Integrated Waveforms: DRV2605L-Q1 and DRV2700 | 2017/9/27 | ||||
| 技術文章 | Four tech trends that improve the driver experience | PDF | HTML | 2017/1/6 | |||
| 技術文章 | Are TI drivers stressing your piezo? | PDF | HTML | 2015/5/14 | |||
| 使用指南 | DRV2700EVM Quick Start Guide | 2015/2/5 |
設計與開發
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DRV-ACC16-EVM — 觸覺加速度計量測工具
DRV2700EVM — DRV2700EVM - 具有整合式升壓轉換器的高壓壓電式驅動器評估模組
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 — DRV2700EVM-HV500 - 返馳高電壓評估模組
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-CONSOLE — Piezo Control Console v1.2.9
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 (...)
TIDA-00376 — 壓電式喇叭頻閃通知參考設計
TIDA-00376 使用我們的工業壓電式驅動器、閃光燈 LED 驅動器和超低功耗 FRAM 微控制器 (MCU) 來示範主要用於火災警示終端設備系統之聲音和視覺通知子系統的實作。此參考設計透過單一壓電轉換器展示多個警示音頻率輸出，以及低輸入電流和高光輸出 LED 閃控。
TIDA-00856 — 返馳式高電壓壓電式驅動器參考設計
DRV2700 是一款單晶片高電壓驅動器，整合了 105V 升壓開關、功率二極體和全差動放大器。此設計運用返馳式高電壓開關，可提供高達 500V 的電壓。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGP) | 20 | Ultra Librarian |
訂購與品質
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。