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参数资料
| 型号： | TPS3305-18QDRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | PLASTIC, SO-8 |
| 文件页数： | 6/16页 |
| 文件大小： | 458K |
| 代理商： | TPS3305-18QDRQ1 |
Description
The TPS3306 family is a series of supervisory circuits designed for circuit initialization which require two
supply voltages, primarily in DSP and processor-based systems.
The product spectrum of the TPS3306-xx is designed for monitoring two independent supply voltages of
3.3 V/1.5 V, 3.3 V/1.8 V, 3.3 V/2 V, 3.3 V/2.5 V, or 3.3 V/5 V.
During power-on, RESET\ is asserted when the supply voltage VDD becomes higher than 1.1 V.
Thereafter, the supervisory circuits monitor the SENSEn inputs and keep RESET active as long as SENSEn
remains below the threshold voltage VIT.
An internal timer delays the return of the RESET\ output to the inactive state (high) to ensure proper
system reset. The delay time, td(typ) = 100 ms, starts after SENSE1 and SENSE2 inputs have risen above
the threshold voltage VIT. When the voltage at SENSE1 or SENSE2 input drops below the threshold
voltage VIT, the output becomes active (low) again.
The integrated power-fail (PFI) comparator with separate open-drain (PFO)\ output can be used for low-
battery detection, power-fail warning, or for monitoring a power supply other than the main supply.
The TPS3306-xx devices integrate a watchdog timer that is periodically triggered by a positive or
negative transition of WDI. When the supervising system fails to retrigger the watchdog circuit within the
time-out interval, tt(out) = 0.50 s, RESET\ becomes active for the time period td. This event also
reinitializes the watchdog timer. Leaving WDI unconnected disables the watchdog.
The TPS3306-xx devices are available in standard 8-pin SO packages.
The TPS3306-xxQ family is characterized for operation over a temperature range of –40°C to 125°C .
Pricing/Packaging/CAD Design Tools/Samples
Price
Packaging
CAD Design Tools
Samples
(TI Pkg) |
TPS3306-
33QDRQ1
ACTIVE
-40 to 125 1.25 | 1KU
SOIC (D) |
8
1
Inventory
TI Inventory Status
Reported Distributor Inventory
TPS3306-
33QDRQ1
As of 8:37 AM GMT, 25 Nov 2005
| Date
Region
Company
1471 | 28 Nov
12 Weeks
Americas DigiKey
>1k
>10k | 23 Jan
View all Distributors
C hoose a Region
* Our information is updated daily, so please check back with us
soon if this does not meet your needs. You may also contact
your TI Authorized Distributor, including those listed above, for
real time stock information.
** Lead time information is not available at this time. However,
our information is updated daily so please check back with us
soon. Please contact your preferred TI Authorized Distributor for
additional information.
Quality & Lead (Pb)-Free Data
Product Content
MTBF/FIT Rate
Device
Eco Plan*
Lead/Ball Finish
MSL Rating/Peak Reflow Details
Details
TPS3306-33QDRQ1
Pb-Free (RoHS)
CU NIPDAU
Level-2-260C-1
YEAR/Level-1-220C-
UNLIM
* The planned eco-friendly classification: Pb-Free (RoHS) or
Green (RoHS & no Sb/Br) - please click on the Product C ontent
Details "View" link in the table above for the latest availability
information and additional product content details.
If the information you are requesting is not available online at
this time, contact one of our Product Information C enters
regarding the availability of this information.
Technical Documents
Datasheets
Keep track of what's new
TPS3306-xx-Q1: Dual Processor Superv isory Circuits w/Power-F ail (tps3306-33-q1.pdf, 253 KB)
04 Mar 2004 Download
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS3305-25 | 制造商:TI 制造商全称:Texas Instruments 功能描述:双处理器监事 |
| TPS3305-25D | 功能描述:监控电路 Dual Processor 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 |
| TPS3305-25DG4 | 功能描述:监控电路 Dual Processor 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 |
| TPS3305-25DGN | 功能描述:监控电路 Dual Processor 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 |
| TPS3305-25DGNG4 | 功能描述:监控电路 Dual Processor 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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