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MIC812LUY

Description
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
CategoryPower/power management    The power supply circuit   
File Size207KB,7 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric View All

MIC812LUY Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4

MIC812LUY Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMicrochip
package instructionTSOP,
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresMANUAL RESET INPUT
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G4
JESD-609 codee3
length2.86 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals4
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.12 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch1.9 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width1.3 mm
MIC811/812
Microprocessor Reset Circuits
General Description
The MIC811 and MIC812 are inexpensive microprocessor
supervisory circuits that monitor power supplies in
microprocessor based systems.
The function of this device is to assert a reset if either the
power supply drops below a designated reset threshold
level or /MR is forced low. Several different reset threshold
levels are available to accommodate 3V, 3.3V or 5V
powered systems.
The MIC811 has an active low /RESET output, while the
MIC812 offers an active high RESET output. The reset
output is guaranteed to remain asserted for a minimum of
140ms after VCC has risen above the designed reset
threshold level. Having a push-pull output stage, the
MIC811/812 does not require a pull-up resistor at the
output. The MIC811/812 comes in a 4-pin SOT-143
package.
If a microprocessor voltage supervisor with an open-drain
output stage is needed, see MIC6315.
Datasheets and support documentation are available on
Micrel’s web site at:
www.micrel.com.
Features
Precision voltage monitor for 3V, 3.3V or 5V power
supplies
/RESET remains valid with VCC as low as 1V
5μA typical supply current
140ms minimum reset pulse width available
Manual reset input
Available in 4-pin SOT-143 package
Applications
Portable equipment
Intelligent instruments
Critical microprocessor power monitoring
Printers/computers
Controllers
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 •
http://www.micrel.com
September 9, 2014
Revision 2.0

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