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TPS3803G15QDCKRQ1 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS3803G15QDCKRQ1
Description  VOLTAGE DETECTOR
Download  13 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS3803G15QDCKRQ1 Fiches technique(HTML) 1 Page - Texas Instruments

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TPS380301Q1, TPS3803G15Q1, TPS3805H33Q1
VOLTAGE DETECTOR
SGLS228 − DECEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
D Qualification in Accordance With
AEC-Q100
D Qualified for Automotive Applications
D Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
D Single Voltage Detector (TPS3803):
Adjustable/1.5 V
D Dual Voltage Detector (TPS3805):
Adjustable/3.3 V
D High ±1.5% Threshold Voltage Accuracy
D Supply Current: 3 µA Typical at VDD = 3.3 V
† Contact factory for details. Q100 qualification data available on
request.
D Push/Pull Reset Output (TPS3805)
Open-Drain Reset Output (TPS3803)
D Temperature Range ...−40°C to 125°C
D Five-Pin SC−70 Package
typical applications
D Applications Using DSPs, Microcontrollers,
or Microprocessors
D Wireless Communication Systems
D Portable/Battery-Powered Equipment
D Programmable Controls
D Intelligent Instruments
D Industrial Equipment
D Notebook/Desktop Computers
D Automotive Systems
description
The TPS3803 and TPS3805 families of supervi-
sory circuits provide circuit initialization and timing
supervision, primarily for DSPs and processor-
based systems.
The TPS3803G15 device has a fixed-sense
threshold voltage VIT set by an internal voltage
divider, whereas the TPS3803−01 has an
adjustable SENSE input that can be configured by
two external resistors. In addition to the fixed
sense threshold monitored at VDD, the TPS3805
devices provide a second adjustable SENSE
input. RESET is asserted in case any of the two
voltages drops below VIT.
During power on, RESET is asserted when supply
voltage VDD becomes higher than 0.8 V.
Thereafter, the supervisory circuit monitors VDD
(and/or SENSE) and keeps RESET active as long
as VDD or SENSE remains below the threshold
voltage VIT. As soon as VDD (SENSE) rises above
the threshold voltage VIT, RESET is deasserted
again. The product spectrum is designed for
1.5 V, 3.3 V, and adjustable supply voltages. The
devices are available in a five-pin SC-70 package.
The
TPS3803
and
TPS3805
devices
are
characterized for operation over a temperature
range of −40
°C to 125°C.
Copyright
 2003 Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
3
2
4
5
DCK PACKAGE
(TOP VIEW)
1
NC
GND
RESET
VDD
SENSE
NC
{
TPS3803-01, TPS3803G15, TPS3805
typical operating circuit
TPS3805H33
TMS320VC5416
RESET
VDD
SENSE
GND
DVDD
CVDD
RESET
GND
3.3 V
1.6 V
R1
R2
{TPS3803G15


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