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| 型号： | TPS3813K33DBVR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| 封装： | GREEN, PLASTIC, SOT-23, 6 PIN |
| 文件页数： | 1/18页 |
| 文件大小： | 536K |
| 代理商： | TPS3813K33DBVR |
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
www.ti.com
SLVS331E – DECEMBER 2000 – REVISED OCTOBER 2010
Processor Supervisory Circuits with
Window-Watchdog
During power on, RESET is asserted when supply
1
FEATURES
voltage (VDD) becomes higher than 1.1 V. Thereafter,
2
Window-Watchdog With Programmable Delay
the supervisory circuit monitors VDD and keeps
and Window Ratio
RESET active as long as VDD remains below the
6-Pin SOT-23 Package
threshold voltage (VIT). An internal timer delays the
return of the output to the inactive state (high) to
Supply Current of 9 mA (Typ)
ensure proper system reset. The delay time, td = 25
Power On Reset Generator With a Fixed Delay
ms typical, starts after VDD has risen above the
Time of 25 ms
threshold voltage (VIT). When the supply voltage
Precision Supply Voltage Monitor 2.5 V, 3 V,
drops below the threshold voltage (VIT), the output
3.3 V, 5 V
becomes active (low) again. No external components
are required. All the devices of this family have a
Open-Drain Reset Output
fixed-sense threshold voltage (VIT) set by an internal
Temperature Range –40°C to +85°C
voltage divider.
For safety critical applications the TPS3813 family
APPLICATIONS
incorporates
a
so-called
window-watchdog
with
Applications Using DSPs, Microcontrollers, or
programmable delay and window ratio. The upper
Microprocessors
limit of the watchdog time-out can be set by either
Safety Critical Systems
connecting WDT to GND, VDD, or using an external
Automotive Systems
capacitor. The lower limit and thus the window ratio is
set by connecting WDR to GND or VDD. The
Heating Systems
supervised processor now needs to trigger the
TPS3813 within this window not to assert a RESET.
DESCRIPTION
The product spectrum is designed for supply voltages
The TPS3813 family of supervisory circuits provide
of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are
circuit initialization and timing supervision, primarily
available in a 6-pin SOT-23 package.
for DSPs and processor-based systems.
The TPS3813 devices are characterized for operation
over a temperature range of –40°C to 85°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 2000–2010, 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS3813K33DBVRG4 | 功能描述:监控电路 w/Prog Watchdog Window RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3813K33DBVT | 功能描述:监控电路 w/Prog Watchdog Window RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3813K33DBVTG4 | 功能描述:监控电路 w/Prog Watchdog Window RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3813K33MDBVREP | 功能描述:监控电路 Mil Enh Proc Sup Circuits RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TPS3813K33QDBVRQ1 | 功能描述:监控电路 Automotive Catalog Sup RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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