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LT3469ETS8#TRPBF

Description
Piezo Microactuator Driver 8-Pin TSOT-23 T/R
File Size157KB,8 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT3469ETS8#TRPBF Overview

Piezo Microactuator Driver 8-Pin TSOT-23 T/R

LT3469ETS8#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Product CategoryPiezo Microactuator Driver
Switching Frequency (kHz)1700
Input Voltage (V)2.5 to 16
Minimum Operating Supply Voltage (V)2.5
Maximum Operating Supply Voltage (V)16
Maximum Supply Current (mA)2.5
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended Industrial
PackagingTape and Reel
Pin Count8
Standard Package NameSOT-23
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed8
Lead ShapeGull-wing
LT3469
Piezo Microactuator Driver
with Boost Regulator
FEATURES
Amplifier
s
Current Limit:
±40mA
Typical
s
Input Common Mode Range: 0V to 10V
s
Output Voltage Range: 1V to (V
CC
– 1V)
s
Differential Gain Stage with High Impedance Output
(g
m
Stage)
s
Quiescent Current (from V ): 2mA
CC
s
Unloaded Gain: 30,000 Typical
Switching Regulator
s
Generates V
CC
Up to 35V
s
Wide Operating Supply Range: 2.5V to 16V
s
High Switching Frequency: 1.3MHz
s
Internal Schottky Diode
s
Tiny External Components
s
Current Mode Switcher with Internal Compensation
s
Low Profile (1mm) SOT-23 Package
DESCRIPTIO
The LT
®
3469 is a transconductance (g
m
) amplifier that can
drive outputs up to 33V from a 5V or 12V supply. An
internal switching regulator generates a boosted supply
voltage for the g
m
amplifier. The amplifier can drive
capacitive loads in the range of 5nF to 300nF. Slew rate is
limited only by the maximum output current. The 35V
output voltage capability of the switching regulator, along
with the high supply voltage of the amplifier, combine to
allow the wide output voltage range needed to drive a
piezoceramic microactuator.
The LT3469 switching regulator switches at 1.3MHz,
allowing the use of tiny external components. The output
capacitor can be as small as 0.22µF, saving space and cost
versus alternative solutions.
The LT3469 is available in a low profile ThinSOT
TM
package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
Piezo Speakers
Piezo Microactuators
Varactor Bias
TYPICAL APPLICATIO
47µH
5V OR 12V
1µF
16V
3
V
IN
Piezo Microactuator Driver
Response Driving a 33nF Load
V
CC
FB
LT3469
GND
9.09k
7
8
10k
100k
4
1
V
OUT
1V TO 33V
PIEZO
ACTUATOR
5nF < C < 300nF
3469 TA03
5
SW
6
453k
2
16.5k
0.47µF
50V
V
OUT
10V/DIV
I
OUT
100mA/DIV
+
INPUT
0V TO 3V
+IN
–IN
+
OUT
INPUT
5V/DIV
50µs/DIV
3469 TA04
U
3469f
U
U
1

LT3469ETS8#TRPBF Related Products

LT3469ETS8#TRPBF LT3469ETS8#PBF LT3469ETS8#TRMPBF LT3469ETS8
Description Piezo Microactuator Driver 8-Pin TSOT-23 T/R Piezo Microactuator Driver 8-Pin TSOT-23 T/R Piezo Microactuator Driver 8-Pin TSOT-23 T/R Piezo Microactuator Driver 8-Pin TSOT-23
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Unconfirmed Active Unconfirmed
Product Category Piezo Microactuator Driver Piezo Microactuator Driver Piezo Microactuator Driver Piezo Microactuator Driver
Switching Frequency (kHz) 1700 1700 1700 1700
Input Voltage (V) 2.5 to 16 2.5 to 16 2.5 to 16 2.5 to 16
Minimum Operating Supply Voltage (V) 2.5 2.5 2.5 2.5
Maximum Operating Supply Voltage (V) 16 16 16 16
Maximum Supply Current (mA) 2.5 2.5 2.5 2.5
Minimum Operating Temperature (°C) -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85
Supplier Temperature Grade Extended Industrial Extended Industrial Extended Industrial Extended Industrial
Pin Count 8 8 8 8
Standard Package Name SOT-23 SOT-23 SOT-23 SOT-23
Supplier Package TSOT-23 TSOT-23 TSOT-23 TSOT-23
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.9(Max) 0.9(Max) 0.9(Max) 0.9(Max)
Package Length 2.9 2.9 2.9 2.9
Package Width 1.75(Max) 1.75(Max) 1.75(Max) 1.75(Max)
PCB changed 8 8 8 8
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 -
Packaging Tape and Reel Tape and Reel Tape and Reel -
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