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PDF MPQ6400 Data sheet ( Hoja de datos )
| Número de pieza | MPQ6400 | |
| Descripción | Low Quiescent Current Programmable-Delay Supervisory Circuit | |
| Fabricantes | MPS | |
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MPQ6400
The Future of Analog IC Technology
Low Quiescent Current
Programmable-Delay Supervisory Circuit
AEC-Q100 Qualified
DESCRIPTION
The MPQ6400 family is the microprocessor (µP)
supervisory circu it w hich can monitor and
provide reset functio n for system voltages fro m
0.4V. Whe n either th e SENSE voltage falls
bmR eaE lonS wuE aT iltsrsetigsnehatrl(ewsM hilRlo)bldeis(apVulITle)
or the voltage of
d to a logic low, the
sserted. The r eset
voltage can be fa ctory-set for stan dard voltage
rails from 0. 9V to 5V, while the MPQ6400DG-
01 reset voltage is adju stable
resistor
exceed
tdhiveiidr ethr.reWshhoelndsS,ENRSE ES
vEwoT ilittshadgarienveaennxtdteornaM aRl
logic high after a user-programmable delay
time.
The MPQ6400 has a very low quiescent current
of 1.6μA typically, which makes it ideal suitable
for battery-powered application s. It provides a
precision re ference to achieve ±1% threshold
accuracy. The reset delay time can be select ed
by a capacitor which is connect ed between
CDELAY and GND, allowing the user to select any
delay time from 2.1ms to 10s. 380ms delay time
is selected by connecting the C DELAY pin to V CC,
while 24ms delay time by leaving the C DELAY pin
float. MPQ6400 is available in 2mm×2mm 6-pin
QFN package.
FEATURES
Guaranteed Industrial/Automotive Temp
Range Limits
Fixed Threshold Voltages for Standard
Voltage Rails From 0.9V to 5V and
Adjustable Voltage From 0.4V are Available
Low Quiescent Current: 1.6μA Typ
Power-On Reset Generator with Adjustable
Delay Time: 2.1ms to 10s
High Threshold
OpMena-nDuraalinReseRt E(
SAM E cR Tc)uOIrnuaptcpuyut:t±1%
Typ
Immune to Short Negative SENSE Voltage
Guaranteed Reset Valid to VCC=0.8V
2×2mm QFN
APPLICATIONS
DSP or Micro controller Applications
Laptop/Desktop Computers
PDAs/Hand-Held Products
Portable/Battery-Powere d Products
FPGA/ASIC Applications
For MPS green status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MPQ6400 Rev. 1.0
www.MonolithicPower.com
12/5/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
1
http://www.Datasheet4U.com
1 page  
MTM PQ6400 -- LOW QUIESCENT CURRENT PROGRAMMABLE-DELAY SUPERVISORY CIRCUIT
ORDERING INFORMATION
Product
Package Top Mark
MPQ6400DG-33
QFN
Nominal Supply Voltage
3.3V
Threshold Voltage (VIT)
3.07V
PIN FUNCTIONS
QFN
Pin #
Name Des cription
1 V CC
2 SENSE
Supply voltage. A 0.1uF decoupling ceramic capacitor should be put close to this pin.
SENSE pin is con nected
below desired threshold,
RtoE
tS hE eT
monitored sy
is asserted.
stem
voltage.
Whe
n
the
monitore
d
voltage
is
Programmable re set del ay time pin. Whe n C DELAY c onnected to V CC throug h a re sistor
3
CDELAY
between 50kΩ and 200kΩ, a 380ms de lay time is selected. Wh en CDELAY floated, the delay
time is 24ms. A capacitor bigger than 150pF connected CDELAY to GND could be used to get
the user’s programmable time from 2.1ms to 10s.
4
M R The manual reset ( M R ) ca n introdu ce a nother lo gic signal to co ntrol the R E S E T . It is
internally connected to VCC through a 90kΩ resistor.
5 GND Ground.
6
RESET
R
a
E S E T is an open
preset threshold
drain signal
or when the
wmhaicnhuawl irllebseeta(sMseR r)tepdinwdhroepnsthtoe
SENSE voltage
a logic low. The
d
R
rops
ESET
below
delay
time is
bigger
programmabl e from
tha n 10k should b e
c2o.1nmnsectoted1t0hsisbpyinutsoinsguepxptelyrnlianlec, aapnadctithoers.R
AE
S
pE uT ll-ouuptpruettsinisgtoar
higher voltage than VCC is allowable.
DETAIL DESCRIPTION
The MPQ6400 product fam ily asserts a R E S E T
signal whe
lower than
n either th e SENSE
V IT or the manual reset
p(inM
vR )olitsagderiveisn
low. The MPQ6400-XX fa mily, o ther than the
MPQ6400DG-01, can monitor a fixed voltage from
0.9V to 5.0 V. The MPQ6400DG-01 can m onitor
arensyisvtoorltadgiveidaebro. vAefte0r.4bVotbhytahdejumsatinnguatlhreeseextte( rnM aR )l
and SENSE voltages exceed their thresholds, the
RESET
output re mains asserted for a user ’s
programmable delay time. Two fixed R E S E T delay
times are user-selectable: 380m s d elay tim e by
connecting the CDELAY pin to VCC, and 24ms delay
time by leaving the C DELAY pin floa t. Any dela y
time from 2.1ms to 10s could b e gotten by
connecting a capacitor between CDELAY and GND.
The wide m onitor voltage and p rogrammable
reset delay time m ake M PQ6400 product fam ily
suitable for a broad array of applications.
MPQ6400 Rev. 1.0
www.MonolithicPower.com
12/5/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
5
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MPQ6400.PDF ] | |
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