EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC2909ITS8-3.3#TR

Description
LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; Pins: 8; Temperature Range: -40°C to 85°C
CategoryPower/power management    The power supply circuit   
File Size182KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC2909ITS8-3.3#TR Overview

LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor; Package: SOT; Pins: 8; Temperature Range: -40°C to 85°C

LTC2909ITS8-3.3#TR Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOT
package instructionPLASTIC, MO-193, TSOT-8
Contacts8
Manufacturer packaging codeTS8
Reach Compliance Codenot_compliant
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length2.9 mm
Humidity sensitivity level1
Number of channels2
Number of functions3
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Encapsulate equivalent codeTSSOP8,.1
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
power supply3.3 V
Certification statusNot Qualified
Maximum seat height1 mm
Maximum supply current (Isup)0.15 mA
Minimum supply voltage (Vsup)0.5 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width1.625 mm
LTC2909
Precision Triple/Dual Input
UV, OV and Negative
Voltage Monitor
FEATURES
DESCRIPTIO
Two Low Voltage Adjustable Inputs (0.5V)
Pin Selectable Input Polarity Allows Negative
and OV Monitoring
Guaranteed Threshold Accuracy: ±1.5%
6.5V Shunt Regulator for High Voltage Operation
Low 50μA Quiescent Current
Buffered 1V Reference for Negative Supply Offset
Input Glitch Rejection
Adjustable Reset Timeout Period
Selectable Internal Timeout Saves Components
Open-Drain
R
S
T Output
Accurate UVLO for 2.5V, 3.3V, 5V Systems
Ultralow Voltage Reset: V
CC
= 0.5V Guaranteed
Space Saving 8-Lead TSOT-23 and 3mm
×
2mm DFN
Packages
The LTC
®
2909 is a dual input monitor intended for a variety
of system monitoring applications. Polarity selection and
a buffered reference output allow the LTC2909 to monitor
positive and negative supplies for undervoltage (UV) and
overvoltage (OV) conditions.
The two inputs have a nominal 0.5V threshold, featuring
tight 1.5% threshold accuracy over the entire operating
temperature range. Glitch filtering ensures reliable reset
operation without false triggering. A third fixed-threshold
UVLO monitor on the part’s V
CC
(also 1.5% accuracy) is
available for standard logic supplies.
The common reset output has a timeout that may use
a preset 200ms, be set by an external capacitor or be
disabled. A three-state input pin sets the input polarity
of each adjustable input without requiring any external
components.
The LTC2909 provides a highly versatile, precise, space-
conscious, micropower solution for supply monitoring.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
Desktop and Notebook Computers
Handheld Devices
Network Servers
Core, I/O Monitor
Automotive
TYPICAL APPLICATIO
3.3V UV/OV (Window) Monitor Application with
200ms Internal Timeout (3.3V Logic Out)
C
BYP
100nF
3.3V
R
P6
453k
ADJ1
R
P5
10.7k
V
CC
RST
LTC2909-2.5
REF
ADJ2
R
P4
76.8k
GND
2909 TA01a
SEL Pin Connection for Input Polarity
Combinations
POLARITY
R
PU
10k
FAULT
OUTPUT
ADJ1
+
+
SEL
TMR
U
ADJ2
SEL PIN
V
CC
OPEN
GND
U
U
+
2909fb
1
Electronic Design Competition Points
[i=s]This post was last edited by paulhyde on 2014-9-15 09:08[/i] Key points of electronic design competitions 1. Don't pursue high-tech, but be comprehensive. The time for electronic competitions is ...
dtcxn Electronics Design Contest
The world's largest LED project completed in the UAE (pictures speak louder than words)
According to foreign media reports, if you think your neighbor's holiday light show is too bright and extravagant, then wait until you see the world's largest LED project recently completed in Abu Dha...
七月七日晴 LED Zone
RC500 problem, why can't tx1 and tx2 detect signals? ? Anyone who has done this before please give me some help~~
I recently made a card reader, using 51 MCU + RC500. I have referred to some online information and written some initialization and sending programs. I wrote 0x03 to txcontronle, but why is there no s...
longdandan Embedded System
Analog Devices' Two-Wire Loop-Powered Transmitter Solution
[color=#000000][size=14px][b]Industrial Loop-Powered Transmitter System Principles and Trends[/b][/size][/color] [align=left]Contemporary field instruments, also known as smart transmitters, are micro...
苏莎莎 ADI Reference Circuit
TCP Hardware Protocol Stack Data--W5500
TCP Hardware Protocol Stack Data--W5500...
heping88888 Industrial Control Electronics
sht20 temperature and humidity sensor exchange area
[color=rgb(0,0,0)][backcolor=rgb(255,255,255)]Hello everyone in the forum, who has used the sht20 temperature and humidity sensor? If you have a program that can be used to adjust it, please share it....
dingshidong MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1586  170  2157  584  1566  32  4  44  12  27 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号