參數(shù)資料
型號(hào): TPS3801K33DCK
廠商: Texas Instruments, Inc.
英文描述: ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
中文描述: 超小型電源電壓監(jiān)控器
文件頁(yè)數(shù): 1/11頁(yè)
文件大?。?/td> 218K
代理商: TPS3801K33DCK
www.ti.com
3
2
4
5
TPS380x. . . DCK PACKAGE
(TOP VIEW)
1
RESET
GND
MR
V
DD
GND
3
2
4
5
TPS380101. . . DCK PACKAGE
(TOP VIEW)
1
RESET
GND
SENSE
V
DD
GND
typical applications
V
DD
= 1.8 V
100 nF
TPS3801E18
TMS320VC5420
GND
GND
MR
RESET
RESET
CoreV
DD
V
DD
TPS3800-xx
TPS3801-xx
TPS3802-xx
SLVS219C–AUGUST 1999–REVISED JULY 2003
ULTRA-SMALL SUPPLY VOLTAGE SUPERVISORS
FEATURES
Small, 5-Pin SC-70 (SOT-323) Package
Supply Current of 9 μA
Power-On Reset Generator With Fixed Delay
Time
– TPS3800 = 100 ms
– TPS3801 = 200 ms
– TPS3802 = 400 ms
DESCRIPTION
The TPS380x family of supervisory circuits monitor
supply voltages to provide circuit initialization and
timing supervision, primarily for DSPs and other pro-
cessor-based systems.
These devices assert a push-pull RESET signal when
the SENSE (adjustable version) or V
DD
(fixed version)
drops below a preset threshold. The RESET output
remains asserted for the factory programmed delay
timeaftertheSENSEorV
DD
return above its threshold.
The TPS380x devices, except the TPS3801-01, incor-
porate a manual reset input (MR). A low level at MR
causes RESET to become active.
Precision Supply Voltage Monitor 1.8 V, 2.5 V,
2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
Manual Reset Input (Except TPS3801-01)
Temperature Range: -40
°
C to 85
°
C
The TPS380x uses a precision reference to achieve an
overall threshold accuracy of 2% - 2.5%. These devices
are available in a 5-pin SC-70 package, which is only
about half the size of a 5-pin SOT-23 package.
APPLICATIONS
Applications Using DSPs, Microcontrollers, or
Microprocessors
Wireless Communication Systems
Portable/Battery-Powered Equipment
Programmable Controls
Intelligent Instruments
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
The TPS380x devices are fully specified over a tem-
perature range of -40
°
C to 85
°
C.
Pleasebeawarethatanimportantnoticeconcerningavailability, standard warranty, and use in critical applications of Texas Instruments
semiconductorproductsanddisclaimerstheretoappears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
ProductsconformtospecificationsperthetermsofTexasInstruments
standard warranty. Production processing does not necessarily in-
cludetestingofallparameters.
Copyright 1999–2003, Texas Instruments Incorporated
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