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參數資料
| 型號： | TPS3823 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Processor Supervisory Circuits(處理器監控電路) |
| 中文描述： | 處理器監控電路（處理器監控電路） |
| 文件頁數： | 1/10頁 |
| 文件大小： | 151K |
| 代理商： | TPS3823 |
TPS3820-xx, TPS3823-xx, TPS3824-xx, TPS3825-xx, TPS3828-xx
PROCESSOR SUPERVISORY CIRCUITS
SLVS165B – APRIL 1998 – REVISED MAY 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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)
Push/Pull Reset (TPS3820/3/4/5), Reset
(TPS3824), or Open-Drain Outputs
(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
μ
A (Typ)
SOT23-5 Package
Temperature Range . . . –40
°
C to 85
°
C
description
The TPS382x family of supervisors provides
circuit initialization and timing supervision,
primarily for DSP and processor-based systems.
During power-on, RESET is asserted when
supply voltage V
DD
becomes higher than 1.1 V.
Thereafter, the supply voltage supervisor moni-
tors V
DD
and keeps RESET active as long as V
DD
remains below the threshold voltage V
IT–
. An
internal timer delays the return of the output to the
inactive state (high) to ensure proper system
reset. The delay time, t
d
, starts after V
DD
has risen
above the threshold voltage V
IT–
. When the
supply voltage drops below the threshold voltage
V
IT–
, the output becomes active (low) again. No
external components are required. All the devices
of this family have a fixed-sense threshold voltage
V
IT–
set by an internal voltage divider.
typical application
RESET
MR
WDI
100 nF
VDD
GND
TPS3823-33
VDD
RESET
I/O
GND
MSP430C325
3.3 V
Applications Using DSPs, Microcontrollers,
or Microprocessors
Industrial Equipment
Programmable Controls
Automotive Systems
Portable/Battery-Powered Equipment
Intelligent Instruments
Wireless Communications Systems
Notebook/Desktop Computers
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.
Copyright
1999, 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.
3
2
4
5
TPS3820 , TPS3823, TPS3828
DBV PACKAGE
(TOP VIEW)
1
RESET
GND
MR
VDD
WDI
3
2
4
5
TPS3825 . . . DBV PACKAGE
(TOP VIEW)
1
RESET
GND
RESET
VDD
MR
3
2
4
5
TPS3824 . . . DBV PACKAGE
(TOP VIEW)
1
RESET
GND
RESET
VDD
WDI
This device is in the Product Preview
stage of development. Contact the
local TI sales office for availability
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS3823-25DBVR | 功能描述:監控電路 2.25V Monitor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3823-25DBVR | 制造商:Texas Instruments 功能描述:Microprocessor Support IC |
| TPS3823-25DBVRG4 | 功能描述:監控電路 Supply Voltage Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3823-25DBVT | 功能描述:監控電路 Supply Voltage Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3823-25DBVT | 制造商:Texas Instruments 功能描述:IC SUPERVISOR 2.25V SOT-23-5 |
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