EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC2935IDC-2-TRMPBF

Description
Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
File Size165KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet View All

LTC2935IDC-2-TRMPBF Overview

Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds

FEATURES
n
n
n
n
n
n
n
n
n
LTC2935
Ultra-Low Power Supervisor
with Power-Fail Output,
Selectable Thresholds
DESCRIPTION
The LTC
®
2935 ultra-low power voltage monitor provides
system initialization, power-fail warning and reset gen-
eration functions. Low quiescent current (500nA typical)
makes the LTC2935 an ideal choice for battery-operated
applications.
Three binary threshold-select inputs configure one of eight
integrated reset thresholds, available from 3.3V to 2.25V
in 150mV increments. Early warning of an impending
low voltage condition is provided at the power-fail output
(PFO), whose threshold is 150mV above the configured
reset threshold. Supervisory circuits monitor V
CC
and
pull
RST
low when V
CC
drops below the configured reset
threshold. When V
CC
is rising from an under-threshold
condition, an internal reset timer is started after exceed-
ing the reset threshold by 5%. A 200ms reset timeout
delays the return of the
RST
output to a high state. A
pushbutton switch connected to the
MR
input is typically
used to force a manual reset. Outputs
RST
and
PFO
are
available with open-drain (LTC2935-1) or active pull-up
(LTC2935-2) circuits. Operating temperature range is from
–40ºC to 85ºC.
500nA Quiescent Current
±1.5% (Max) Accuracy over Temperature
Integrated Precision Attenuators
Eight Pin-Selectable Reset Thresholds
Eight Pin-Selectable Power-Fail Thresholds
Early Warning Power-Fail Output
200ms Reset Timeout
Manual Reset Input
Compact 8-Lead, 2mm
×
2mm DFN and
TSOT-23 (ThinSOT™) Packages
APPLICATIONS
n
n
n
n
n
Portable Equipment
Battery-Powered Equipment
Security Systems
Point-of-Sale Devices
Wireless Systems
, LT, LTC, LTM are registered trademarks of Linear Technology Corporation. ThinSOT is
a trademark of Linear Technology Corporation. All other trademarks are the property of
their respective owners.
TYPICAL APPLICATION
Configurable Low Power Voltage Monitor
V
IN
V
CC
0.1μF
S2
S1
S0
MR
GND
2935 TA01a
Falling Threshold Selection Table
RESET
POWER-FAIL
THRESHOLD THRESHOLD
(V)
(V)
S2
Low
Low
Low
Low
High
High
High
High
S1
Low
Low
High
High
High
Low
Low
High
S0
Low
High
High
Low
Low
Low
High
High
PFO
LTC2935-2
BATTERY
POWERED
SYSTEM
LOGIC
RST
3.30
3.15
3.00
2.85
2.70
2.55
2.40
2.25
3.45
3.30
3.15
3.00
2.85
2.70
2.55
2.40
2935f
1
Fire alarm system based on SI1000 wireless communication
Preface: Fire monitoring and alarm system can convert physical quantities such as smoke, heat, and flames generated by combustion into electrical signals through fire detectors at the early stage of f...
csswxl RF/Wirelessly
I don't understand some parameters of Mosfet
The MOSFET driver circuit chip IR2110 has an output current of about 2A. Is this the drive current? The output voltage is 10-20V. So the output power of the tube is IU, or how to calculate it? Then th...
西里古1992 Analog electronics
consult
[i=s]This post was last edited by paulhyde on 2014-9-15 09:41[/i] In addition to preparing analog-to-digital and digital-to-analog conversion modules, the minimum system of the microcontroller, and bu...
liu5013 Electronics Design Contest
Urgent! ! About the interrupt priority of dsp28027
Urgent! ! About the interrupt priority of dsp28027...
huangyiqian1000 DSP and ARM Processors
Regarding the program issues of AT24C02B
Why is my display always zero, please take a look. The following is my program: #include "reg52.h" #include "absacc.h" #include "math.h" #define uchar unsigned char #define uint unsigned int # dm XBYT...
zcx027 Embedded System
Wince read and write mmc device problem, experts please help.
I have a ca card, mmc interface on winxp, connected to a usb card reader, drive letter H: I use createfile("\\\\.\\H:",...); It can operate normally, reset, read, write are all normal. Write a command...
chenjing1986 Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1564  1429  13  2216  1895  32  29  1  45  39 
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