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參數(shù)資料
| 型號(hào)： | TL7712 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Supply voltage Supervisor |
| 中文描述： | 電源電壓監(jiān)控 |
| 文件頁數(shù)： | 17/17頁 |
| 文件大?。?/td> | 340K |
| 代理商： | TL7712 |
Summary
Supply voltage Supervisor TL77xx Series
13
Figure 15. Series Resistor at the C
t
input of the TL770xB
To a small degree this resistor influences the delay time t
d
. In most applications however this effect can be
neglected, because - when determining the length of the reset pulse - a large reserve is taken into
account.
When designing a supply voltage supervision circuit often an analysis of the noise on the supply lines is
required. The probes of the oscilloscope usually used for this kind of measurement mostly are not capable
of performing the measurements correctly. The main reason is the ground wire attached to the probe. This
wire often acts as an antenna which receives all the noise generated by the surrounding circuits. This
leads to a wrong display on the oscilloscope screen. More accurate results are found, when the signal to
be measured is taken via a 0.1
μ
F capacitor (to block the DC voltage) directly soldered to the point of
measurement. The other end of the capacitor is connected to a coaxcable, whose shield is connected by
where the cable has to be terminated correctly to avoid line reflections.
5. Summary
Monitoring of the supply voltage is absolutely mandatory to guarantee a correct initialization of the circuit
and to detect undefined operating condition e.g. an undervoltage. This report shows several application
examples for the supply voltage supervisor circuits of the series TL77xxA. Owing their very accurate
threshold voltage, they can be easily designed into systems, replacing expensive discrete circuits .
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TL7712A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SUPPLY-VOLTAGE SUPERVISORS |
| TL7712ACD | 功能描述:監(jiān)控電路 10.8V Monitor 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 |
| TL7712ACD | 制造商:Texas Instruments 功能描述:IC SVS SINGLE PROG SMD SOIC8 制造商:Texas Instruments 功能描述:IC, SVS, SINGLE, PROG, SMD, SOIC8 |
| TL7712ACDE4 | 功能描述:監(jiān)控電路 Sngl SVS For 12V Sys w/Prg Time Delay 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 |
| TL7712ACDG4 | 功能描述:監(jiān)控電路 Single SVS For 12V Systems 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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