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LT3572EUF#TRPBF

Description
Dual Full-Bridge Piezo Driver 20-Pin QFN EP T/R
File Size151KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT3572EUF#TRPBF Overview

Dual Full-Bridge Piezo Driver 20-Pin QFN EP T/R

LT3572EUF#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
Product CategoryDual Full-Bridge Piezo Driver
Switching Frequency (kHz)500 to 2250
Input Voltage (V)2.7 to 10
Minimum Operating Supply Voltage (V)2.7
Maximum Operating Supply Voltage (V)10
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
Pin Count20
Standard Package NameQFN
Supplier PackageQFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length4
Package Width4
PCB changed20
Lead ShapeNo Lead
LT3572
Dual Full-Bridge Piezo Driver
with 900mA Boost Converter
FEATURES
DESCRIPTION
The LT
®
3572 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.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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
APPLICATIONS
Piezo Motor Drive
TYPICAL APPLICATION
Dual Piezo Driver
V
IN
3V TO 5V
10μH
V
OUT
30V
50mA
SW
V
OUT
FB
OUTA
LT3572
OUTA
3572 TA01a
Response Driving Piezo Motor at 70kHz
100k
4.7μF
V
IN
SHDN
SHDNA
SHDNB
PWMA
PWMB
SYNC
PGOOD
RT
15pF
576k
10μF
24.3k
V
OUTA
20V/DIV
V
OUTA
20V/DIV
OUTB
GND
OUTB
42.2k
SS
10nF
PWMA
2V/DIV
2μs/DIV
3572 TA01b
3572fa
1

LT3572EUF#TRPBF Related Products

LT3572EUF#TRPBF LT3572EUF#PBF
Description Dual Full-Bridge Piezo Driver 20-Pin QFN EP T/R Dual Full-Bridge Piezo Driver 20-Pin QFN EP Tube
EU restricts the use of certain hazardous substances Compliant Compliant
ECCN (US) EAR99 EAR99
Part Status Active Active
Product Category Dual Full-Bridge Piezo Driver Dual Full-Bridge Piezo Driver
Switching Frequency (kHz) 500 to 2250 500 to 2250
Input Voltage (V) 2.7 to 10 2.7 to 10
Minimum Operating Supply Voltage (V) 2.7 2.7
Maximum Operating Supply Voltage (V) 10 10
Minimum Operating Temperature (°C) -40 -40
Maximum Operating Temperature (°C) 85 85
Supplier Temperature Grade Extended Extended
Pin Count 20 20
Standard Package Name QFN QFN
Supplier Package QFN EP QFN EP
Mounting Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max)
Package Length 4 4
Package Width 4 4
PCB changed 20 20
Lead Shape No Lead No Lead
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