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TPS3103E33DVB Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce TPS3103E33DVB
Description  ULTRALOW SUPPLY CURRENT/SUPPLY VOLTAGE SUPERVISORY CIRCUITS
Download  22 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS3103E33DVB Fiches technique(HTML) 1 Page - Texas Instruments

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TPS31xxExx, TPS31xxH20, TPS31xxK33
ULTRALOW SUPPLY CURRENT/SUPPLY VOLTAGE SUPERVISORY CIRCUITS
SLVS363B − AUGUST 2001 − REVISED SEPTEMBER 2004
www.ti.com
1
features
D Precision Supply Voltage Supervision
Range: 0.9 V, 1.2 V, 1.5 V, 1.6 V,
2 V, 3.3 V
D High Trip Point Accuracy: 0.75%
D Supply Current of 1.2 µA (Typ)
D RESET Defined With Input Voltages as Low
as 0.4 V
D Power On Reset Generator With a Delay
Time of 130 ms
D Push/Pull or Open-Drain RESET Outputs
D SOT23-6 Package
D Temperature Range ... −40°C to 85°C
typical applications
D Applications Using Low-Power DSPs,
Microcontrollers or Microprocessors
D Portable/Battery-Powered Equipment
D Intelligent Instruments
D Wireless Communication Systems
D Programmable Controls
D Industrial Equipment
D Notebook/Desktop Computers
D Automotive Systems
description
The TPS310x, TPS311x families of supervisory
circuits provide circuit initialization and timing
supervision, primarily for DSP and processor-
based systems.
During power on, RESET is asserted when the
supply voltage (VDD) becomes higher than 0.4 V.
Thereafter, the supervisory circuit monitors VDD
and keeps the RESET output active as long as
VDD remains below the threshold voltage (VIT). An
internal timer delays the return of the output to the
inactive state to ensure proper system reset. The
delay time starts after VDD has risen above the VIT.
When the VDD drops below the VIT, the output
becomes active again.
All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider.
Copyright
 2001 − 2004 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.
All trademarks are the property of their respective owners.
(TOP VIEW)
RESET
GND
MR
VDD
PFI
TPS3103
DBV PACKAGE
PFO
(TOP VIEW)
RSTVDD
GND
MR
VDD
SENSE
TPS3106
DBV PACKAGE
RSTSENSE
(TOP VIEW)
RESET
GND
MR
VDD
SENSE
TPS3110
DBV PACKAGE
WDI
TPS3106E33DBV
VDD
RSTVDD
RSTSENSE
GND
SENSE
R1
R2
GND
Vcore
VIO
RESET
R3
DSP
3.3 V
1.6 V
GND
typical application circuit
3
2
4
6
1
5
3
2
4
6
1
5
3
2
4
6
1
5
MR


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