Features and Benefits
- 2.7V to 10V Input Voltage Range
- 900mA Boost Converter
- Dual Full-Bridge Piezo Drivers
- Programmable Switching Frequency from 500kHz to 2.25MHz
- Synchronizable Up to 2.5MHz
- Separate Enable for Each Piezo Driver and Boost Converter
- Available in a 4mm × 4mm 20-Pin QFN Package
The LT3572 is a highly integrated dual Piezo motor driver capable of driving two Piezo motors at up to 40V from a 5V supply. Each Piezo driver can be independently turned on or off along with the boost converter.
The boost regulator has a soft-start capability that limits the inrush current at start-up. The boost regulator switching frequency is set by an external resistor or the frequency can be synchronized by an external clock. A PGOOD pin indicates when the output of the boost converter is in regulation and the Piezo drivers are allowed to start switching.
The LT3572 is available in a (4mm × 4mm) 20-pin QFN package.
- Piezo Motor Drive
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
R530 Reliability Data3/26/2018
DC1197A - Demo Manual9/24/2009
Small, High Efficiency Solution Drives Two Piezo Motors1/1/2008 LT Journal
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Models for the following parts are available in LTspice:
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LT3572EUF#PBF||Material Declaration||Reliability Data||20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)|
|LT3572EUF#TRPBF||Material Declaration||Reliability Data||20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)|
|Wafer Fabrication Data||R530 Reliability Data|
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.