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LTC2919HMS-3.3#TRPBF

Description
IC MONITOR PREC 3.3V 10-MSOP
CategoryPower/power management    The power supply circuit   
File Size187KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC2919HMS-3.3#TRPBF Overview

IC MONITOR PREC 3.3V 10-MSOP

LTC2919HMS-3.3#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionTSSOP, TSSOP10,.19,20
Contacts10
Manufacturer packaging codeMS
Reach Compliance Codecompliant
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-G10
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals10
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP10,.19,20
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3.3 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)0.28 mA
Maximum supply voltage (Vsup)6 V
Minimum supply voltage (Vsup)0.5 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
technologyCMOS
Temperature levelAUTOMOTIVE
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
LTC2919
Precision Triple/Dual Input
UV, OV and Negative
Voltage Monitor
FEATURES
DESCRIPTIO
Two Low Voltage Adjustable Inputs (0.5V)
Accurate UVLO Provides a Third Monitor Input
Open-Drain
RST,
OUT1 and OUT2 Outputs
Pin Selectable Input Polarity Allows Negative, UV
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
Outputs Guaranteed Low With V
CC
= 0.5V
Space Saving 10-Lead 3mm
×
2mm DFN and MSOP
Packages
The LTC
®
2919 is a triple/dual input monitor intended for a
variety of system monitoring applications. Polarity selec-
tion and a buffered reference output allow the LTC2919 to
monitor positive and negative supplies for undervoltage
(UV) and overvoltage (OV) conditions.
The two adjustable inputs have a nominal 0.5V threshold,
featuring tight 1.5% threshold accuracy over the entire
operating temperature range. Glitch filtering ensures out-
puts operate reliably without false triggering. An accurate
threshold at the V
CC
pin provides a third input supply
monitor for a 2.5V, 3.3V or 5V supply.
Two independent output pins indicate the status of each
adjustable input. A third common output provides a
configurable reset timeout that may be set by an accu-
rate internal 200ms timer, programmed with an external
capacitor, or disabled for a fast response. A three-state
input pin sets the input polarity of each adjustable input
without requiring any external components.
The LTC2919 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. Protected by U.S. Patents,
including 6949965, 7292076.
APPLICATIO S
Desktop and Notebook Computers
Network Servers
Core, I/O Monitor
Automotive
TYPICAL APPLICATIO
3.3V UV/OV (Window) Monitor Application with
200ms Internal Timeout (3.3V Logic Out)
SEL Pin Connection for Input Polarity
Combinations
453k
ADJ1
10.7k
REF
ADJ2
76.8k
SEL
GND
2919 TA01a
3.3V
V
CC
LTC2919–2.5
OUT1
OUT2
RST
TMR
UV
OV
10k
10k
10k
FAULT
0.1μF
POLARITY
ADJ1
ADJ2
SEL PIN
V
CC
OPEN
GND
+
+
U
+
2919f
U
U
1
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