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參數資料
| 型號： | TPS3813L30QDBVRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| 封裝： | PLASTIC, SOT-23, 6 PIN |
| 文件頁數： | 1/14頁 |
| 文件大小： | 295K |
| 代理商： | TPS3813L30QDBVRQ1 |
1
FEATURES
APPLICATIONS
DESCRIPTION
V
DD
V
DD
WDR
WDT
RESET
WDI
GND
TPS3813
V
DD
RESET
I/O
GND
m
C
C
WP
0.1 F
m
0.1 F
m
R
3
2
4
6
1
5
GND
WDT
V
DD
RESET
WDI
WDR
DBVPACKAGE
SOT-23
(TOPVIEW)
TypicalOperatingCircuit
TPS3813J25-Q1, TPS3813L30-Q1
TPS3813K33-Q1, TPS3813I50-Q1
www.ti.com.................................................................................................................................................... SPRS288A – MAY 2008 – REVISED NOVEMBER 2008
PROCESSOR SUPERVISORY CIRCUITS WITH WINDOW-WATCHDOG
During power on, RESET is asserted when supply
voltage (VDD) becomes higher than 1.1 V. Thereafter,
2
Qualified for Automotive Applications
the supervisory circuit monitors VDD and keeps
Window-Watchdog With Programmable Delay
RESET active as long as VDD remains below the
and Window Ratio
threshold voltage (VIT). An internal timer delays the
return of the output to the inactive state (high) to
6-Pin SOT-23 Package
ensure proper system reset. The delay time, td = 25
Supply Current of 9 A (Typ)
ms typical, starts after VDD has risen above the
Power On Reset Generator With a Fixed Delay
threshold voltage (VIT). When the supply voltage
Time of 25 ms
drops below the threshold voltage (VIT), the output
becomes active (low) again. No external components
Precision Supply Voltage Monitor:
are required. All the devices of this family have a
2.5 V, 3 V, 3.3 V, 5 V
fixed-sense threshold voltage (VIT) set by an internal
Open-Drain Reset Output
voltage divider.
Temperature Range –40°C to 125°C
For safety-critical applications, the TPS3813 family
incorporates a window-watchdog with programmable
delay and window ratio. The upper limit of the
Applications Using DSPs, Microcontrollers, or
watchdog time-out can be set by either connecting
Microprocessors
WDT to GND or VDD, or by using an external
Safety-Critical Systems
capacitor. The lower limit, and thus the window ratio,
is set by connecting WDR to GND or VDD. The
Automotive Systems
supervised processor now needs to trigger the
Heating Systems
TPS3813 within this window not to assert a RESET.
The product spectrum is designed for supply voltages
of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are
The TPS3813 supervisory circuits provide circuit
available in a 6-pin SOT-23 package.
initialization and timing supervision, primarily for
DSPs and processor-based systems.
The TPS3813 devices are characterized for operation
over a temperature range of –40°C to 125°C.
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 2008, 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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| TPS3813Q1EVM | 功能描述:EVALUATION MODULE 制造商:texas instruments 系列:* 零件狀態:在售 標準包裝:1 |
| TPS3818G25DRVR | 功能描述:監控電路 Lo Quies Crnt Acc Progr-Delay Sup Crct 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 |
| TPS3818G25DRVRG4 | 功能描述:監控電路 Low Quies Crnt Acc Prgrm-Delay Sup Crct 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 |
| TPS3818G25DRVT | 功能描述:監控電路 Lo Quies Crnt Acc Progr-Delay Sup Crct 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 |
| TPS3818G25DRVTG4 | 功能描述:監控電路 Low Quies Crnt Acc Prgrm-Delay Sup Crct 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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