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參數(shù)資料
| 型號： | TL7705ACPSE4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | PLASTIC, SO-8 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 202K |
| 代理商： | TL7705ACPSE4 |
PRODUCT FOLDER | PRODUCT INFO: FEATURES | DESCRIPTION | DATASHEETS | PRICING/AVAILABILITY | SAMPLES |
TL7705A, Single Supply Voltage Supervisor for 5V Systems with Programmable Time Delay
DEVICE STATUS: ACTIVE
PARAMETER NAME
TL7705A
VCC (nom) (V)
18
Vt (V)
4.55
Vin (min) (V)
3.6
Over Voltage Sense No
WDI
No
Reset Active High
Yes
Power Fail
No
ICC (max) (uA)
1800
FEATURES
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Power-On Reset Generator
q
Automatic Reset Generation After Voltage Drop
q
Wide Supply-Voltage Range
q
Precision Voltage Sensor
q
Temperature-Compensated Voltage Reference
q
True and Complement Reset Outputs
q
Externally Adjustable Pulse Duration
q
DESCRIPTION
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The TL77xxA family of integrated-circuit supply-voltage supervisors is specifically designed for use as reset
controllers in microcomputer and microprocessor systems. The supply-voltage supervisor monitors the
supply for undervoltage conditions at the SENSE input. During power up, the RESET\ output becomes active
(low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the
delay timer function activates a time delay, after which outputs RESET\ and RESET go inactive (high and
low, respectively). When an undervoltage condition occurs during normal operation, outputs RESET\ and
RESET go active. To ensure that a complete reset occurs, the reset outputs remain active for a time delay
after the voltage at the SENSE input exceeds the positive-going threshold value. The time delay is
determined by the value of the external capacitor CT: td = 1.3 × 104 × CT, where CT is in farads (F) and td
is in seconds (s).
During power down (assuming that SENSE is below VIT-), the outputs remain active until the VCC falls below
a maximum of 2 V. After this, the outputs are undefined.
An external capacitor (typically 0.1 uF for the TL77xxAC and TL77xxAI) must be connected to REF to reduce
the influence of fast transients in the supply voltage.
Product Folder:TL7705A, Single Supply Voltage Supervisor for 5V Systems with Programmable Time Delay
file:////roarer/root/export/projects/bitting1/imaging...NG/Avnet/20001221/11272000/TXII/11272000/tl7705a.html (1 of 2) [1/6/2001 3:07:30 PM]
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TL7705ACPSLE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SUPPLY-VOLTAGE SUPERVISORS |
| TL7705ACPSR | 功能描述:監(jiān)控電路 4.55V 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 |
| TL7705ACPSRE4 | 功能描述:監(jiān)控電路 Sngl SVS f/5V System 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 |
| TL7705ACPSRG4 | 功能描述:監(jiān)控電路 Single Supply Vltg Supervisor 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 |
| TL7705ACY | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SUPPLY-VOLTAGE SUPERVISORS |
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