DRV2700

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DRV2700 SLOS861B – MARCH 2015 – REVISED APRIL 2015 DRV2700 Industrial Piezo Driver With Integrated Boost Converter 1 Features 1 100-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 to 5.5 V 4-mm × 4-mm × 0.9-mm VQFN package 1.8-V Compatible Digital Pins Thermal Protection 2 Applications Piezo Positioning Actuators Piezo Sounder Driver Piezo Inkjet Printer Piezo Transducers Piezoelectric Micropumps 3 Description 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 highvoltage 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 boost current-limit is programmable through the R(REXT) resisto...