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參數(shù)資料
| 型號： | TPS3820-50DBVTG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 |
| 封裝： | GREEN, PLASTIC, SOT-23, 5 PIN |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 460K |
| 代理商： | TPS3820-50DBVTG4 |
FEATURES
D Power-On Reset Generator With Fixed Delay
Time of 200 ms (TPS3823/4/5/8)
or 25 ms (TPS3820)
D Manual Reset Input (TPS3820/3/5/8)
D Reset Output Available in Active-Low
(TPS3820/3/4/5), Active-High (TPS3824/5) and
Open-Drain (TPS3828)
D Supply Voltage Supervision Range:
2.5 V, 3 V, 3.3 V, 5 V
D Watchdog Timer (TPS3820/3/4/8)
D Supply Current of 15 A (Typ)
D SOT23-5 Package
D Temperature Range: 40°C to +85°C
APPLICATIONS
D Applications Using DSPs, Microcontrollers, or
Microprocessors
D Industrial Equipment
D Programmable Controls
D Automotive Systems
D Portable/Battery-Powered Equipment
D Intelligent Instruments
D Wireless Communications Systems
D Notebook/Desktop Computers
DESCRIPTION
The TPS382x family of supervisors provide circuit
initialization and timing supervision, primarily for DSP
and processor-based systems. During power-on,
RESET asserts when the supply voltage VDD becomes
higher than 1.1 V. Thereafter, the supply voltage
supervisor 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, 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.
3
2
4
5
TPS3820, TPS3823, TPS3828: DBV PACKAGE
(TOP VIEW)
1
RESET
GND
MR
VDD
WDI
3
2
4
5
TPS3825: DBV PACKAGE
(TOP VIEW)
1
RESET
GND
RESET
VDD
MR
3
2
4
5
TPS3824: DBV PACKAGE
(TOP VIEW)
1
RESET
GND
RESET
VDD
WDI
RESET
MR
WDI
100 nF
VDD
GND
TPS3823-33
VDD
RESET
I/O
GND
MSP430C325
3.3 V
TYPICAL APPLICATION
www.ti.com
TPS3820-xx, TPS3823-xx,
TPS3824-xx, TPS3825-xx,
TPS3828-xx
SLVS165G APRIL 1998 REVISED JANUARY 2008
PROCESSOR SUPERVISORY
CIRCUITS
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
www.ti.com
Copyright
20012007, Texas Instruments Incorporated
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.
All trademarks are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS3820-50QDBVRQ1 | 功能描述:監(jiān)控電路 Quad Bus Buff Gate With 3-State Outputs 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 |
| TPS3820-50QDBVRRB | 制造商:Texas Instruments 功能描述: |
| TPS3823-25DBVR | 功能描述:監(jiān)控電路 2.25V 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 |
| TPS3823-25DBVR | 制造商:Texas Instruments 功能描述:Microprocessor Support IC |
| TPS3823-25DBVRG4 | 功能描述:監(jiān)控電路 Supply Voltage 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 |
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