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MIC2774L-26BM5-TR

Description
IC SUPERVISOR DUAL LV SOT23-5
Categorysemiconductor    Power management   
File Size435KB,11 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet Parametric View All

MIC2774L-26BM5-TR Overview

IC SUPERVISOR DUAL LV SOT23-5

MIC2774L-26BM5-TR Parametric

Parameter NameAttribute value
typemulti-pressure monitor
Monitored voltage number2
outputSupplementary
resetLow effective
reset timeoutMinimum 140 ms
Voltage - Threshold2.67V, adjustable
Operating temperature-40°C ~ 85°C(TA)
Installation typesurface mount
Package/casingSC-74A,SOT-753
Supplier device packagingSOT-23-5
MIC2774
Dual Micro-Power Low Voltage Supervisor
General Description
The MIC2774 is a dual power supply supervisor that
provides undervoltage monitoring, manual reset capability,
and power-on reset generation in a compact 5-pin SOT-23
package. Features include two undervoltage detectors,
one fixed and one adjustable, and a choice of reset
outputs. One undervoltage 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 for the monitoring of voltages lower than those
supported by previous supervisor ICs.
The reset outputs are asserted at power-on and at any
time either voltage drops below the programmed threshold
voltage and remains asserted for 140ms (min.) after they
subsequently rise back above the threshold boundaries.
Manual reset functionality can be provided by a switch
connected 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.
Datasheets and support documentation are available on
Micrel’s website at:
www.micrel.com.
Features
Monitors two independent power supplies for
undervoltage conditions
One fixed and one user-adjustable input
Choice of ten factory-programmed thresholds
Adjustable input can monitor supplies as low as 0.3V
Generates 140ms (min.) 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.)
/RST output valid down to 1.2V
Ultra-low supply current, 3.5µA typical
Rejects brief input transients
IttyBitty™ 5-pin SOT-23 package
Pin-compatible upgrade for MAX6306/09/12
Applications
Monitoring processor ASIC or FPGA core and I/O
voltages
PDAs, hand-held PCs
Embedded controllers
Telecommunications systems
Power supplies
Wireless/cellular systems
Networking hardware
Typical Application
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
March 16, 2015
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