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參數(shù)資料
| 型號(hào)： | TPS3123J18D |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Ultralow Voltage Processor Supervisory Circuits(電源電壓監(jiān)視1.8V,門限電壓1.62V,極低電壓微處理監(jiān)控電路) |
| 中文描述： | 超低電壓處理器監(jiān)控電路（1.8V的電源電壓監(jiān)視，門限電壓1.62V，極低電壓微處理監(jiān)控電路） |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 234K |
| 代理商： | TPS3123J18D |
TPS3123-xx, TPS3124-xx, TPS3125-xx, TPS3126-xx, TPS3128-xx
ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS
SLVS227A – AUGUST 1999 – REVISED DECEMBER 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
Minimum Supply Voltage of 0.75 V
Supply Voltage Supervision Range:
– 1.2 V, 1.5 V, 1.8 V (TPS312x)
– 3 V (TPS3125 Devices Only)
– Other Versions on Request
Power-On Reset Generator With Fixed
Delay Time of 180 ms
Manual Reset Input (TPS3123/5/6/8)
Watchdog Timer Retriggers the RESET
Output at V
DD
≥
V
IT
Supply Current of 14
μ
A (Typ)
SOT23–5 Package
Temperature Range . . . –40
°
C to 85
°
C
Reset Output Available in Active-Low
(TSP3123/4/5), Active-High (TSP3124/5),
and Open-Drain Active-Low (TPS3126/8)
typical applications
Applications Using Low Voltage DSPs,
Microcontrollers, or Microprocessors
Wireless Communication Systems
Portable/Battery-Powered Equipment
Programmable Controls
Intelligent Instruments
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
Figure 1. Typical Low-Voltage DSP Application
MR
TPS3123J12
GND
VDD
RESET
XF
RESET
CVDD
DVDD
GND
1.2 V
TMS320UVC5402
WDI
description
The TPS312x family of ultralow voltage processor supervisory circuits provides circuit initialization and timing
supervision, primarily for DSP and processor-based systems.
During power-on, RESET is asserted when the supply voltage (V
DD
) becomes higher than 0.75 V. Thereafter,
the supply voltage supervisor monitors V
DD
and keeps RESET output 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
dtyp
= 180 ms starts after V
DD
has risen above the threshold voltage (V
IT
).
Copyright
2000, 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
DBV PACKAGE
(TOP VIEW)
1
TPS3123/
TPS3128
RESET
GND
MR
VDD
WDI
3
2
4
5
1
TPS3124
RESET
GND
RESET
VDD
WDI
3
2
4
5
1
TPS3125/
TPS3126
RESET
GND
RESET
VDD
MR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS3305(中文) | Dual Processor Supervisors(雙處理器監(jiān)控器) |
| TPS3306(中文) | Dual Processor Supervisry Circuits With Power-Fall(帶電源故障比較器的雙監(jiān)控電路) |
| TPS3306 | Dual Processor Supervisry Circuits With Power-Fall(帶電源故障比較器的雙監(jiān)控電路) |
| TPS3307(中文) | Triple Processor Supervisors(三處理器監(jiān)控器電路) |
| TPS3307 | Triple Processor Supervisors(三處理器監(jiān)控器電路) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS3123J18DBV | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS |
| TPS3123J18DBVR | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3123J18DBVRG4 | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3123J18DBVT | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TPS3123J18DBVTG4 | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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