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參數資料
| 型號： | TPS3306 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Dual Processor Supervisry Circuits With Power-Fall(帶電源故障比較器的雙監(jiān)控電路) |
| 中文描述： | 雙處理器Supervisry電路的電源爾（帶電源故障比較器的雙監(jiān)控電路） |
| 文件頁數： | 2/12頁 |
| 文件大?。?/td> | 186K |
| 代理商： | TPS3306 |
TPS3306-15, TPS3306-18, TPS3306-20, TPS3306-25, TPS3306-33
DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL
SLVS290 – APRIL 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The various supervisory circuits are designed to monitor the nominal supply voltage, as shown in the following
supply voltage monitoring table.
SUPPLY VOLTAGE MONITORING
DEVICE
NOMINAL SUPERVISED VOLTAGE
THRESHOLD VOLTAGE (TYP)
SENSE1
3.3 V
SENSE2
1.5 V
SENSE1
2.93 V
SENSE2
1.4 V
TPS3306-15
TPS3306-18
3.3 V
1.8 V
2.93 V
1.68 V
TPS3306-20
3.3 V
2 V
2.93 V
1.85 V
TPS3306-25
3.3 V
2.5 V
2.93 V
2.25 V
TPS3306-33
5 V
3.3 V
4.55 V
2.93 V
During power-on, RESET is asserted when the supply voltage V
DD
becomes higher than 1.1 V. Thereafter, the
supervisory circuits monitor the SENSEn inputs
and keep RESET active as long as SENSEn
remains below
the threshold voltage V
IT
.
An internal timer delays the return of the RESET output to the inactive state (high) to ensure proper system reset.
The delay time, t
d(typ)
= 100 ms, starts after SENSE1 and SENSE2 inputs
have risen above the threshold
voltage V
IT
. When the voltage at SENSE1 or SENSE2 input drops below the threshold voltage V
IT
, the output
becomes active (low) again.
The integrated power-fail (PFI) comparator with separate open-drain (PFO) output can be used for low-battery
detection, power-fail warning, or for monitoring a power supply other than the main supply.
The TPS3306-xx devices integrate a watchdog timer that is periodically triggered by a positive or negative
transition of WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval,
t
t(out)
= 0.50 s, RESET becomes active for the time period t
d
. This event also reinitializes the watchdog timer.
Leaving WDI unconnected disables the watchdog.
The TPS3306-xx devices are available in either 8-pin MSOP or standard 8-pin SO packages.
The TPS3306-xx family is characterized for operation over a temperature range of – 40
°
C to 85
°
C.
AVAILABLE OPTIONS
PACKAGED DEVICES
SMALL OUTLINE
(D)
MARKING
DGK PACKAGE
TA
μ
-SMALL OUTLINE
(DGK)
TPS3305-15D
TPS3306-15DGK
TIAIC
TPS3305-18D
TPS3306-18DGK
TIAID
–40 C to 85 C
TPS3305-20D
TPS3306-20DGK
TIAIE
TPS3305-25D
TPS3305-33D
TPS3306-25DGK
TPS3306-33DGK
TIAIF
TIAIG
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| 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) |
| TPS3510(中文) | PC POWER SUPPLY SUPERVISORS(PC電源監(jiān)控) |
| TPS3600D20(中文) | Battery-Backup Supervisory For Low Power Processors(電源電壓監(jiān)視2.0V,用于低功率處理器,帶后備電池開關的監(jiān)控器) |
| tps3606(中文) | Battery-Backup Supervisory For Low Power Processors(電源電壓監(jiān)視3.3V,用于低功率處理器,帶后備電池開關的監(jiān)控器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS3306-15 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL |
| TPS3306-15D | 功能描述:監(jiān)控電路 Dual-Processor with Power-Fail RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)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 |
| TPS3306-15D | 制造商:Texas Instruments 功能描述:IC's |
| TPS3306-15DG4 | 功能描述:監(jiān)控電路 Dual-Processor with Power-Fail RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)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 |
| TPS3306-15DGK | 功能描述:監(jiān)控電路 Dual-Processor with Power-Fail RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)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 |
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