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TPS3808G30DRVT Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS3808G30DRVT
Description  Low-Quiescent-Current, Programmable-Delay Supervisory Circuit
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS3808G30DRVT Fiches technique(HTML) 1 Page - Texas Instruments

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3.3 V
TPS3808G12
TPS3808G33
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DD
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TPS3808
SBVS050K – MAY 2004 – REVISED OCTOBER 2015
TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit
1 Features
3 Description
The TPS3808 family of microprocessor supervisory
1
Power-On Reset Generator with Adjustable Delay
circuits monitors system voltages from 0.4 V to 5 V,
Time: 1.25 ms to 10 s
asserting an open-drain RESET signal when the
Very Low Quiescent Current: 2.4
μA Typical
SENSE voltage drops below a preset threshold or
High Threshold Accuracy: 0.5% Typ
when the manual reset (MR) pin drops to a logic low.
The RESET output remains low for the user-
Fixed Threshold Voltages for Standard Voltage
adjustable delay time after the SENSE voltage and
Rails from 0.9 V to 5 V and Adjustable Voltage
manual reset (MR) return above the respective
Down to 0.4 V Are Available
thresholds.
Manual Reset (MR) Input
The TPS3808 device uses a precision reference to
Open-Drain RESET Output
achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The
Temperature Range: –40°C to 125°C
reset
delay
time
can
be
set
to
20
ms
by
disconnecting the CT pin, 300 ms by connecting the
Small SOT-23 and 2-mm × 2-mm WSON
CT pin to VDD using a resistor, or can be user-
Packages
adjusted between 1.25 ms and 10 s by connecting
the CT pin to an external capacitor. The TPS3808
2 Applications
device has a very low typical quiescent current of
DSP or Microcontroller Applications
2.4
μA, so it is well-suited to battery-powered
applications. It is available in the SOT-23 and 2-mm ×
Notebook and Desktop Computers
2-mm WSON packages, and is fully specified over a
PDAs and Hand-Held Products
temperature range of –40°C to 125°C (TJ).
Portable and Battery-Powered Products
FPGA and ASIC Applications
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOT-23 (6)
2.90 mm x 1.60 mm
TPS3808
WSON (6)
2.00 mm x 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
Supply Current vs Supply Voltage
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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