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LTC1326CMS8

Description
3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
CategoryPower/power management    The power supply circuit   
File Size238KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Related ProductsFound1parts with similar functions to LTC1326CMS8
Download Datasheet Parametric View All

LTC1326CMS8 Overview

3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8

LTC1326CMS8 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionPLASTIC, MSOP-8
Contacts8
Manufacturer packaging codeMS8
Reach Compliance Code_compli
ECCN codeEAR99
Other featuresRESET THRESHOLD VOLTAGE IS 4.725; MANUAL PUSH-BUTTON RESET INPUT
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-G8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of channels3
Number of functions3
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.19
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)0.04 mA
Maximum supply voltage (Vsup)7 V
Minimum supply voltage (Vsup)1 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Threshold voltage nominal1.0,3.118,4.725V
Maximum time at peak reflow temperature20
width3 mm
Base Number Matches1
LTC1326/LTC1326-2.5
Micropower Precision
Triple Supply Monitors
FEATURES
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
Simultaneously Monitors Three Supplies
LTC1326: 5V, 3.3V and ADJ
LTC1326-2.5: 2.5V, 3.3V and ADJ
Guaranteed Threshold Accuracy:
±0.75%
Low Supply Current: 20µA
Internal Reset Time Delay: 200ms
Manual Push-Button Reset Input
Active Low and Active High Reset Outputs
Active Low “Soft” Reset Output
Power Supply Glitch Immunity
Guaranteed RESET for V
CC3
1V or V
CC5
1V
or V
CC25
1V
8-Pin SO and MSOP Packages
The LTC
®
1326/LTC1326-2.5 are triple supply monitors
intended for systems with multiple supply voltages. They
provide micropower operation, small size and high accu-
racy supply monitoring.
Tight 0.75% threshold accuracy and glitch immunity
ensure reliable reset operation without false triggering.
The 20µA typical supply current makes the LTC1326/
LTC1326-2.5 ideal for power-conscious systems.
The RST output is guaranteed to be in the correct state for
V
CC3
, V
CC5
or V
CC25
down to 1V. The LTC1326/LTC1326-2.5
can be configured to monitor one, two or three inputs,
depending on system requirements.
A manual push-button reset input provides the ability to
generate a very narrow “soft” reset pulse (100µs typ) or a
200ms reset pulse equivalent to a power-on reset. Both
SRST and RST outputs are open-drain and can be OR-tied
with other reset sources.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
Desktop Computers
Notebook Computers
Intelligent Instruments
Portable Battery-Powered Equipment
TYPICAL APPLICATIO
DC/DC
CONVERTER
2.5V
3.3V
V
CORE
RST Output Voltage vs Supply Voltage (LTC1326-2.5)
3.5
SYSTEM
LOGIC
3.0
RST OUTPUT VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
V
CC25
= V
CCA
= V
CC3
4.7k PULL-UP FROM RST TO V
CC3
T
A
= 25°C
0.1µF
V
CC25
V
CC3
V
CCA
LTC1326-2.5
RST
PBR
PUSH-BUTTON
RESET
GND
SRST
0
0
0.5
1.0
1.5 2.0
V
CC3
(V)
2.5
3.0
3.5
1326/2.5 TA01
U
1326/2.5 TA02
U
U
1

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