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MIC2774H-26YM5TR

Description
2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, LEAD FREE, SOT-23, 5 PIN
CategoryPower/power management    The power supply circuit   
File Size731KB,8 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance  
Download Datasheet Parametric View All

MIC2774H-26YM5TR Overview

2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, LEAD FREE, SOT-23, 5 PIN

MIC2774H-26YM5TR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeSOT-23
package instructionLSSOP,
Contacts5
Reach Compliance Codecompliant
ECCN codeEAR99
Is SamacsysN
Other featuresNOMINAL THRESHOLDVOLTAGE IS 2.67; MANUAL RESET INPUT
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G5
JESD-609 codee4
length2.9 mm
Humidity sensitivity level1
Number of channels2
Number of functions1
Number of terminals5
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply voltage (Vsup)2.9925 V
Minimum supply voltage (Vsup)2.7075 V
Nominal supply voltage (Vsup)2.85 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width1.6 mm
Base Number Matches1
MIC2774
Dual Micro-Power Low Voltage Supervisor
General Description
The MIC2774 is a dual power supply supervisor that pro-
vides under-voltage monitoring, manual reset capability, and
power-on reset generation in a compact 5-pin SOT package.
Features include two under-voltage detectors, one fixed and
one adjustable, and a choice of reset outputs. One under-
voltage detector compares V
DD
against a fixed threshold. Ten
factory-programmed thresholds are available. The second,
user-adjustable input is compared against a 300mV reference.
This low reference voltage allows monitoring voltages lower
than those supported by previous supervisor ICs.
The reset outputs are asserted at power-on and any time
either voltage drops below the programmed threshold volt-
ages and remains asserted for 140ms (min.) after they
subsequently rise back above the threshold boundaries.
Manual reset functionality can be provided by a switch con-
nected between ground and the /MR input. A wide choice of
voltage thresholds provides for a variety of supply voltages
and tolerances. Hysteresis is included to prevent chattering
due to noise. Typical supply current is a low 3.5µA.
Features
• Monitors two independent power supplies for under-volt-
age conditions
• One fixed and one user adjustable input
• Choice of factory-programmed thresholds
• Adjustable input can monitor supplies as low as 0.3V
• Generates 140ms (minimum) power-on reset pulse
• Manual reset input
• Choice of active-high, active-low, or open-drain active-
low reset outputs
• Inputs may be pulled above V
DD
(7V abs. max.)
• Open-drain output can be pulled above V
DD
(7V abs
max.)
• /RST output valid down to 1.2V
• Ultra-low supply current, 3.5µA typical
• Rejects brief input transients
• IttyBitty™ 5-lead SOT-23 package
• Pin compatible upgrade for MAX6306/09/12
Applications
• Monitoring processor ASIC, or FAGA core and I/O volt-
ages
• PDAs, hand-held PCs
• Embedded controllers
• Telecommunications systems
• Power supplies
• Wireless / Cellular systems
• Networking hardware
Reset Output
Temperature
Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Package
SOT-23-5
SOT-23-5
SOT-23-5
Ordering Information
Part Number
Standard
MIC2774N-XXBM5
MIC2774H-XXBM5
MIC2774L-XXBM5
Notes:
1.
Marking
UGXX
(1)
UHXX
(1)
UIXX
(1)
Pb-Free
MIC2774N-XXYM5
MIC2774H-XXYM5
MIC2774L-XXYM5
Marking
UGXX
(1)
UHXX
(1)
UIXX
(1)
Open-Drain. Active-Low (/RST)
Active-High. Complementary (RST)
Active-Low. Complementary (/RST)
XX = Voltage options, see table on page 2. Underscore indicates a Pb-Free part.
Typical Application
V
CORE
1.0V
V
I/O
2.5V
R1
R2
Power_Good
er_
er_G
Manual
Reset
ese
eset
IttyBitty™ 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
MICROPROCESSOR
OCESSO
OCESSOR
VCORE
VI/O
MIC2774L-23
/RST
VDD
IN
/RESET
GND
/MR
GND
October 2005
1
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