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參數資料
| 型號： | TPS3809I50DBVT |
| 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： | GREEN, PLASTIC, SOT-23, 3 PIN |
| 文件頁數： | 1/12頁 |
| 文件大小： | 383K |
| 代理商： | TPS3809I50DBVT |
2
3
1
RESET
VDD
GND
3.3 V
TPS3809K33
TMS320LC54x
GND
RESET
VDD
TPS76333
GND
OUT
IN
5 V
www.ti.com
SLVS228A – AUGUST 1999 – REVISED OCTOBER 2010
3-PIN SUPPLY VOLTAGE SUPERVISORS
1
FEATURES
APPLICATIONS
Applications Using DSPs, Microcontrollers, or
2
3-Pin SOT-23 Package
Microprocessors
Supply Current of 9 mA (Typical)
Wireless Communication Systems
Precision Supply Voltage Monitor
Portable/Battery-Powered Equipment
2.5 V, 3 V, 3.3 V, 5 V
Programmable Controls
Pin-For-Pin Compatible With MAX 809
Intelligent Instruments
Temperature Range: –40°C to +85°C
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
DESCRIPTION
The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for
DSPs and processor-based systems.
During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the
supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage
VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset.
The delay time, td(typ) = 200 ms, starts after VDD has risen above the threshold voltage VIT. When the supply
voltage drops below the threshold voltage VIT, the output becomes active (low) again. No external components
are required. All the devices of this family have a fixed sense-threshold voltage VIT set by an internal voltage
divider.
The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a
3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of –40°C to 85°C.
spacer
Typical Application
DBV PACKAGE
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1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 1999–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS3809I50DBVT | 制造商:Texas Instruments 功能描述:SUPERVISORY CIRCUIT 3809 SOT-23-3 |
| TPS3809I50DBVT | 制造商:Texas Instruments 功能描述:SUPERVISORY CIRCUIT 3809 SOT-23-3 |
| TPS3809I50DBVTG4 | 功能描述:監控電路 3-Pin Supply Voltage Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 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 |
| TPS3809I50MDBVREP | 功能描述:監控電路 Mil Enhance Supply Vltg Sup RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 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 |
| TPS3809I50QDBVRQ1 | 功能描述:監控電路 3-Pin Supply Voltage Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 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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