MIC2005-0.5YMLTR Micrel Semiconductor, MIC2005-0.5YMLTR Datasheet

MIC2005-0.5YMLTR

Manufacturer Part Number

MIC2005-0.5YMLTR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC2772-S3S3YMLTR.pdf (9 pages)

Specifications of MIC2005-0.5YMLTR

Date_code

06+

Packing_info

22D-06L

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General Description

The MIC2772 is a dual power supply supervisor that

provides under-voltage monitoring and power-on

reset generation.

voltage supervisors such as MIC1810, MIC1815,

MIC809, MIC811, MIC6315, etc. The two voltage

supervisors are completely independent. Each

functional block features an under-voltage detector,

a delay-generator, and a de-bounced manual reset

input.

A wide choice of voltage thresholds is available.

The reset output is asserted at power-on and any

time the input voltage drops below the reference

voltage. It remains asserted for the chosen timeout

period after the input rises back above the threshold.

Reset timeouts of 20, 140, and 1100ms (minimum)

are available.

A reset can be generated at any time by asserting

the manual reset input, /MR. This input is internally

de-bounced, and the reset output will remain active

for the timeout period after the release of /MR. The

/MR input can also be used to daisy-chain one or

more of the MIC2772’s supervisors onto existing

power monitoring circuitry or other supervisors.

The tiny 2x2mm MLF package has a footprint

smaller than that of a single SOT23 voltage

supervisor.

Data sheets and support documentation can be

found on Micrel’s web site at www.micrel.com.

____________________________________________________________________________________________________

Typical Application

April 2005

It may replace two discrete

MIC2772 Typical Application Circuit

MR1

MR2

RESET2

RESET1

GND2

VCC2

GND1

VCC1

VCC2

Features

• Two independent voltage supervisors

• Directly replaces discrete supervisors

• Generates power-on reset pulses

• De-bounced manual reset Inputs

• Choice of voltage thresholds

• 20, 140, or 1100ms reset timeouts

• Reset output may be pulled above VCC

• Rejects brief input transients

• Ultra-small 2x2mm MLF package

Applications

• Servers

• Embedded Controllers

• Telecommunications Systems

• Power Supply Sequencing

• Hot-swapping

• Power supplies

10k

VCC

RESET

GND

VCC

RESET

GND

Dual Voltage Supervisor

µP

MIC2772

(408) 955-1690

M9999-042005

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