LT3572
PRODUCTIONDual Full-Bridge Piezo Driver with 900mA Boost Converter
- Part Models
- 4
- 1ku List Price
- Starting From $4.20
Overview
- 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
- Soft-Start
- Separate Enable for Each Piezo Driver and Boost Converter
- Available in a 4mm × 4mm 20-Pin QFN Package
- AEC-Q100 Qualified for Automotive Applications
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.
Applications
- Piezo Motor Drive
Documentation
Data Sheet 1
User Guide 1
Design Note 1
Technical Articles 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT3572EUF#PBF | 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LT3572EUF#TRPBF | 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LT3572EUF#WPBF | 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LT3572EUF#WTRPBF | 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LT3572EUF#PBF | PRODUCTION | |
| LT3572EUF#TRPBF | PRODUCTION | |
|
Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LT3572EUF#PBF | PRODUCTION | |
| LT3572EUF#TRPBF | PRODUCTION | |
|
Apr 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive) |
||
| LT3572EUF#WPBF | PRODUCTION | |
| LT3572EUF#WTRPBF | PRODUCTION | |
|
Apr 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LT3572EUF#WPBF | PRODUCTION | |
| LT3572EUF#WTRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT3572
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.
Evaluation Kits
LT3572EUF | Dual 500mA Piezo Driver & 900mA Boost Converter