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MIC842LBC5

Description
Comparator with Reference
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size478KB,8 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet Parametric View All

MIC842LBC5 Overview

Comparator with Reference

MIC842LBC5 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMicrochip
Parts packaging codeSOIC
package instructionTSSOP, TSSOP5/6,.08
Contacts5
Reach Compliance Codecompliant
ECCN codeEAR99
Amplifier typeCOMPARATOR
JESD-30 codeR-PDSO-G5
JESD-609 codee0
length2 mm
Humidity sensitivity level1
Number of functions1
Number of terminals5
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output typePUSH-PULL
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP5/6,.08
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)240
power supply1.8/5 V
Certification statusNot Qualified
Nominal response time12000 ns
Maximum seat height1.1 mm
Maximum slew rate0.003 mA
Supply voltage upper limit7 V
Nominal supply voltage (Vsup)1.6 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width1.25 mm
MIC841/2
Micrel
MIC841/842
Comparator with Reference
General Description
The MIC841 and MIC842 are micropower, precision voltage
comparators with an on-chip voltage reference.
Both devices are intended for voltage monitoring applications.
External resistors are used to set the voltage monitor threshold.
When the threshold is crossed, the outputs switch polarity.
The MIC842 incorporates a voltage reference and comparator
with fixed internal hysteresis; two external resistors are used to
set the switching threshold voltage. The MIC841 provides a
similar function with user adjustable hysteresis; this part re-
quires three external resistors to set the upper and lower
thresholds (the difference between the threshold voltages
being the hysteresis voltage).
Both the MIC841 and MIC842 are available with push-pull or
open-drain output stage. The push-pull output stage is config-
ured either active high or active low; the open-drain output stage
is only configured active high.
Supply current is extremely low (1.5µA, typical), making it ideal
for portable applications.
The MIC841/2 is supplied in Micrel’s Teeny™ 5-lead SC-70
package.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Teeny™
Features
• Optimized for PDAs, cellular telephones, pagers,
and other battery-powered devices
• Output can be pulled up to 6V regardless of supply
voltage (841NBC5 only)
• High
±1.25%
voltage threshold accuracy
• Built in hysteresis for noise suppression
(MIC842)
• Extremely low 1.5µA typical supply current
• Immune to brief input transients
• Teeny™ 5-lead SC-70 package
Applications
PDAs
Pagers
Cordless phones
Consumer electronics
Embedded controllers
Personal electronics
Typical Application
V
IN
V
DD
MIC841
R1
5
3
V
IN
V
DD
4
VDD
LTH
HTH
OUT
GND
V
OUT
V
LTH
> V
HTH
V
REF
= 1.24V
1.5V
V
DD
5.5V
MIC842
R1
5
R2
1
2
VDD
INP
OUT
GND
4
V
OUT
V
REF
= 1.24V
1.5V
V
DD
5.5V
1
2
R3
R2
Threshold Detection with Hysteresis Set by a Third
External Resistor
Threshold Detector with Internal Fixed Hysteresis
Teeny™ is a trademark of Micrel, Inc.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
January 2005
1
MIC841/2
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