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參數(shù)資料
| 型號(hào)： | tps3617 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | BATTERY-BACKUP SUPERVISOR FOR RAM RETENTION(TPS3617-50 為保持RAM提供電池監(jiān)控的監(jiān)控器) |
| 中文描述： | 電池備份的RAM保持（TPS3617監(jiān)管者50為保持內(nèi)存提供電池監(jiān)控的監(jiān)控器） |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大?。?/td> | 279K |
| 代理商： | TPS3617 |
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SLVS339B – DECEMBER 2000 – REVISED DECEMBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Supply Current of 40
μ
A (Max)
Battery Supply Current of 100 nA (Max)
Precision 5-V Supply Voltage Monitor,
Other Voltage Options on Request
Backup-Battery Voltage Can Exceed V
DD
Watchdog Timer With 800-ms Time-Out
Power-On Reset Generator With Fixed
100-ms Reset Delay Time
Voltage Monitor for Power-Fail or
Low-Battery Monitoring
Battery Freshness Seal
8-Pin MSOP Package
Temperature Range . . . –40
°
C to 85
°
C
typical applications
Fax Machines
Set-Top Boxes
Advanced Voice Mail Systems
Portable Battery Powered Equipment
Computer Equipment
Advanced Modems
Automotive Systems
Portable Long-Time Monitoring Equipment
Point of Sale Equipment
description
The TPS3617-50 supervisory circuit monitors and
controls processor activity by providing backup-
battery switchover for data retention of CMOS
RAM.
During power on, RESET is asserted when the supply voltage (V
DD
or V
BAT
) becomes higher than 1.1 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 starts after V
DD
has risen above the threshold voltage (V
IT
).
typical operating circuit
VDD
VBAT
PFI
Backup
Battery
RESET
WDI
PFO
VOUT
GND
Rx
Ry
External
Source
0.1
μ
F
Power
Supply
GND
RESET
I/O
I/O
VCC
Switchover
Capacitor
0.1
μ
F
TPS3617
uC
Copyright
2002, Texas Instruments Incorporated
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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.
ACTUAL SIZE
3,05 mm x 4,98 mm
VBAT
RESET
WDI
PFO
VOUT
VDD
GND
PFI
MSOP (DGK) Package
(TOP VIEW)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS3619 | BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION(用于RAM數(shù)據(jù)保持的后備電源監(jiān)控器) |
| TPS3705 | Processor Supervisory Circuits With Power-Fail(帶電源故障監(jiān)視處理機(jī)監(jiān)控電路) |
| TPS3707 | Processor Supervisory Circuits With Power-Fail(帶電源故障監(jiān)視處理機(jī)監(jiān)控電路) |
| tps3800(中文) | ULTRA SMALL SUPPLY VOLTAGE(超低電源電壓監(jiān)控器) |
| TPS3823(中文) | Processor Supervisory Circuits(處理器監(jiān)控電路) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS3617-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Battery-Backup Supervisors for RAM Retention |
| TPS3617-50DGK | 功能描述:監(jiān)控電路 Battery-Backup for RAM Retention RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)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 |
| TPS3617-50DGK | 制造商:Texas Instruments 功能描述:BATTERY-BACKUP SVS FOR RAM RETEN |
| TPS3617-50DGKG4 | 功能描述:監(jiān)控電路 Battery-Backup for RAM Retention RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)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 |
| TPS3617-50DGKR | 功能描述:監(jiān)控電路 Battery-Backup for RAM Retention RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)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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