- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69505 > TPS3305-15D (TEXAS INSTRUMENTS INC) 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | TPS3305-15D |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | PLASTIC, SO-8 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 286K |
| 代理商： | TPS3305-15D |
TPS3306-15, TPS3306-18, TPS3306-20, TPS3306-25, TPS3306-33
DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWER-FAIL
SLVS290 – APRIL 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The various supervisory circuits are designed to monitor the nominal supply voltage, as shown in the following
supply voltage monitoring table.
SUPPLY VOLTAGE MONITORING
DEVICE
NOMINAL SUPERVISED VOLTAGE
THRESHOLD VOLTAGE (TYP)
DEVICE
SENSE1
SENSE2
SENSE1
SENSE2
TPS3306-15
3.3 V
1.5 V
2.93 V
1.4 V
TPS3306-18
3.3 V
1.8 V
2.93 V
1.68 V
TPS3306-20
3.3 V
2 V
2.93 V
1.85 V
TPS3306-25
3.3 V
2.5 V
2.93 V
2.25 V
TPS3306-33
5 V
3.3 V
4.55 V
2.93 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 either 8-pin MSOP or standard 8-pin SO packages.
The TPS3306-xx family is characterized for operation over a temperature range of – 40
°C to 85°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
MARKING
TA
SMALL OUTLINE
(D)
-SMALL OUTLINE
(DGK)
MARKING
DGK PACKAGE
TPS3305-15D
TPS3306-15DGK
TIAIC
TPS3305-18D
TPS3306-18DGK
TIAID
–40
_C to 85_C
TPS3305-20D
TPS3306-20DGK
TIAIE
TPS3305-25D
TPS3306-25DGK
TIAIF
TPS3305-33D
TPS3306-33DGK
TIAIG
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS3305-18DGN | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3305-25DGNRG4 | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3305-33DGNR | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3305-33DGN | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3305-25DR | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS3305-18 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:雙處理器監(jiān)事 |
| TPS3305-18/3305-25/3305-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Processor Supervisors |
| TPS3305-18D | 功能描述:監(jiān)控電路 Dual Processor 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 |
| TPS3305-18D | 制造商:Texas Instruments 功能描述:DUAL PROCESSOR SUPERVISORY CIRCUIT |
| TPS3305-18DG4 | 功能描述:監(jiān)控電路 Dual Processor 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。