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參數(shù)資料
| 型號： | TLV803ZDBZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | PLASTIC, SOT-23, 3 PIN |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 381K |
| 代理商： | TLV803ZDBZR |
V
DD
Transient
Amplitude
Duration
V
IT-
tw
RESET
V
DD
t
d
V
+V
IT
HYS
-
1.1V
ValidOutput
SBVS157A
– APRIL 2011 – REVISED JUNE 2011
APPLICATION INFORMATION
VDD TRANSIENT REJECTION
The TLV803 has built-in rejection of fast transients on the VDD pin. The rejection of transients depends on both
the duration and the amplitude of the transient. The amplitude of the transient is measured from the bottom of the
transient to the negative threshold voltage of the TLV803, as shown in Figure 7.
Figure 7. Voltage Transient Measurement
The TLV803 does not respond to transients that are fast duration/low amplitude or long duration/small amplitude.
Figure 4 shows the relationship between the transient amplitude and duration needed to trigger a reset. Any
combination of duration and amplitude above the curve generates a reset signal.
RESET DURING POWER UP/DOWN
The TLV803 output is valid when VDD is greater than 1.1 V. When VDD is less than 1.1 V, the output transistor
turns off and becomes high impedance. The voltage on the RESET pin rises to the voltage level connected to the
pull-up resistor. Figure 8 shows a typical waveform for power-up, assuming the RESET pin has a pull-up resistor
connected to the VDD pin.
Figure 8. Power-Up Response
6
Copyright
2011, Texas Instruments Incorporated
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| TLV803ZDBZT | 功能描述:監(jiān)控電路 3P 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(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 |
| TLV809I50 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-Pin Supply Voltage Supervisors |
| TLV809I50DBVR | 功能描述:監(jiān)控電路 3Pin Supply Vltg Sup 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 |
| TLV809I50DBVT | 功能描述:監(jiān)控電路 3Pin Supply Vltg Sup 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 |
| TLV809I50DBZR | 功能描述:監(jiān)控電路 3P Supply Vltg Super 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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