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參數(shù)資料
| 型號(hào)： | TL7709 |
| 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)： | 9/17頁 |
| 文件大?。?/td> | 340K |
| 代理商： | TL7709 |
Application
examples
Supply voltage Supervisor TL77xx Series
5
power-on, short voltage fluctuations do not repetitively reset the system. Delay times of 10 to 20ms or
even up to 500 ms will usually avoid these problems. Owing to an internal limitation of discharge current of
the timing capacitor C
t
, there is no upper limit for the size of this capacitor.
3. Application examples
Five versions of this circuit are available:
TL7705A, TL7705B
(V
= 4.55 V): Application in TTL-systems and micro-
computer systems which require a 5 volt supply (e.g. TMS7000)
TL7709A
(V
t
= 7.6 V): Application in microcomputer systems using the
TMS1XXXNLL.
TL7712A
(V
= 10.8 V): Application in CMOS, microprocessor, and memory
circuits with a 12 volt supply.
TL7715A
(V
= 13.5 V): Application in circuits which operate with a supply voltage
of 15 V, as is found often in analog circuits.
TL7702A, TL7702B
(V
= 2.5 V): Application in systems where other supply
voltages are used. The required trigger level my be adjusted with an external
resistor divider at the SENSE input.
Since for most applications the circuits are already adjusted to the appropriate voltage levels, these
devices are easy to use. Figure 5 shows the initialization circuit diagrams for TMS7000 microcomputer
system with supply voltage V
cc
= 5 V. The external components required are the decoupling capacitor C
ref
for the reference voltage and the timing capacitor C
t
. The outputs of the TL77xx are open collector outputs.
In figure 5 therefore a pull-up resistor is shown at the RESET output to ensure the correct High level.
Figure 5. TL7705A in 5 Volt Microcomputer Applications
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TL7709A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SUPPLY-VOLTAGE SUPERVISORS |
| TL7709ACD | 功能描述:監(jiān)控電路 7.6V Monitor 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 |
| TL7709ACD | 制造商:Texas Instruments 功能描述:SUPERVISORY SINGLE PROG SOIC8 制造商:Texas Instruments 功能描述:SUPERVISORY, SINGLE, PROG, SOIC8 制造商:Texas Instruments 功能描述:SUPERVISORY, SINGLE, PROG, SOIC8; Threshold Voltage:7.6V; No. of Supervisors / Monitors:1; Supply Voltage Min:3.5V; Supply Voltage Max:18V; Reset Type:Active-High, Active-Low; Digital IC Case Style:SOIC; No. of Pins:8; Supply ;RoHS Compliant: Yes |
| TL7709ACDE4 | 功能描述:監(jiān)控電路 Sngl SVS For 9v Sys w/Prg Time Delay 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 |
| TL7709ACDG4 | 功能描述:監(jiān)控電路 Single SVS For 9v Systems 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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