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LTC2955CDDB-2#PBF

Description
Controller 1.5V to 36V Automotive 10-Pin DFN EP T/R
File Size264KB,22 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC2955CDDB-2#PBF Overview

Controller 1.5V to 36V Automotive 10-Pin DFN EP T/R

LTC2955CDDB-2#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusUnconfirmed
TypeController
Input Voltage (V)1.5 to 36
Minimum Operating Supply Voltage (V)1.5
Maximum Operating Supply Voltage (V)36
Maximum Supply Current (mA)0.003
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
PackagingTape and Reel
Standard Package NameDFN
Pin Count10
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width2
PCB changed10
Lead ShapeNo Lead
FeaTures
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LTC2955
Pushbutton On/Off
Controller with Automatic
Turn-On
DescripTion
The
LTC
®
2955
is a micropower, pushbutton on/off control-
ler that manages system power by generating a clean enable
output from the supply monitor input and the debounced
pushbutton input. It features an interrupt output that
notifies the system of a pushbutton or low supply event.
When the system is ready, it may use the power kill input
to shut off power. If the pushbutton remains pressed for
more than the configurable turn-off duration, the system
power is forced off.
The supply input covers a wide range from 1.5V to 36V.
The robust pushbutton input handles wide voltage swings
of ±36V and ESD strikes to ±25kV (human body model)
without latchup or damage. A low 1.2µA supply current
maximizes battery run time. Separate versions are avail-
able for positive or negative enable polarities.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT and PowerPath are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
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Automatic Turn-On Via Voltage Monitor Input
Wide Input Supply Range: 1.5V to 36V
Low Supply Current: 1.2µA
±25kV ESD HBM on
PB
Input
±36V Wide Input Voltage for
PB
Input
Low Leakage EN Output Allows DC/DC Converter
Control (LTC2955-1)
High Voltage
EN
Output Drives External P-Channel
MOSFET (LTC2955-2)
Simple Interface Allows Graceful µP Shutdown
Adjustable Turn-Off Timer
10-Lead 3mm × 2mm DFN and 8-Lead ThinSOT™
Packages
applicaTions
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n
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Desktop and Notebook Computers
GPS Devices
Portable Instruments
Automotive Electronics
Typical applicaTion
Automatic Turn-On with Power-Fail Indication
V
TRIP
= 5.4V
8.4V
LT3008-3.3
V
IN
V
OUT
SHDN
EN
1M
R7
1M
EN
TURNS ON
STAYS ON
TURNS OFF
Pushbutton On/Off with Interrupt
TURN ON PULSE
PB
SHORT PULSE
LONG PULSE
3.3V
V
IN
2.32M
0.1µF
LTC2955DDB-1
SEL
INT
ON
KILL
PGD
POWER-FAIL
2955 TA01a
µP
INT
INTERRUPT
INTERRUPT
2955 TA01b
402k
PB
TMR GND
2955fa
For more information
www.linear.com/LTC2955
1
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