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TPS3823-50DBVTG4 датащи(PDF) 1 Page - Texas Instruments

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номер детали TPS3823-50DBVTG4
подробное описание детали  Processor Supervisory Circuits
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TPS3823-50DBVTG4 датащи(HTML) 1 Page - Texas Instruments

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RESET
MR
WDI
100 nF
VDD
GND
TPS3823-33
VDD
RESET
I/O
GND
MSP430C325
3.3 V
3
2
4
5
TPS3820, TPS3823, TPS3828: DBV PACKAGE
TPS3820A, TPS3823A, TPS3828A: DBV PACKAGE
(TOP VIEW)
1
RESET
GND
MR
VDD
WDI
3
2
4
5
TPS3825 and TPS3825A: DBV PACKAGE
(TOP VIEW)
1
RESET
GND
RESET
VDD
MR
3
2
4
5
TPS3824 and TPS3824A: DBV PACKAGE
(TOP VIEW)
1
RESET
GND
RESET
VDD
WDI
TPS382x-xx
TPS382xA-xx
www.ti.com
SLVS165J – APRIL 1998 – REVISED APRIL 2013
Processor Supervisory Circuits
Check for Samples: TPS382x-xx, TPS382xA-xx
1
FEATURES
2
Power-On Reset Generator With Fixed Delay
Time of 200 ms (TPS3823/4/5/8) or 25 ms
(TPS3820)
Manual Reset Input (TPS3820/3/5/8)
Reset Output Available in Active-Low
(TPS3820/3/4/5), Active-High (TPS3824/5) and
Open-Drain (TPS3828)
Supply Voltage Supervision Range:
2.5 V, 3 V, 3.3 V, 5 V
Watchdog Timer (TPS3820/3/4/8)
Supply Current of 15
μA (Typ)
SOT23-5 Package
Temperature Range:
−40°C to 85°C
APPLICATIONS
Applications Using DSPs, Microcontrollers, or
Microprocessors
Industrial Equipment
Programmable Controls
Automotive Systems
Portable/Battery-Powered Equipment
Intelligent Instruments
Wireless Communications Systems
Notebook/Desktop Computers
TYPICAL APPLICATION
DESCRIPTION
The TPS382x family of supervisors provide circuit
initialization and timing supervision, primarily for DSP
and processor-based systems. During power-on,
RESET
asserts
when
the
supply
voltage
VDD
becomes higher than 1.1 V. Thereafter, the supply
voltage supervisor monitors VDD and keeps RESET
active as long as VDD remains below the threshold
voltage, VIT−. An internal timer delays the return of
the output to the inactive state (high) to ensure proper
system reset. The delay time, td, starts after VDD has
risen above the threshold voltage, VIT−. When the
supply voltage drops below the threshold voltage
VIT−, the output becomes active (low) again. No
external components are required. All the devices of
this family have a fixed-sense threshold voltage, VIT–,
set by an internal voltage divider.
1
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.
2
All trademarks are the property of their respective owners.
UNLESS
OTHERWISE
NOTED
this
document
contains
Copyright © 1998–2013, Texas Instruments Incorporated
PRODUCTION DATA information 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.


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