- 您現在的位置：買賣IC網 > PDF目錄98280 > TPS3305-20QDRQ1 (TEXAS INSTRUMENTS INC) 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 PDF資料下載
參數資料
| 型號： | TPS3305-20QDRQ1 |
| 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： | 11/16頁 |
| 文件大小： | 458K |
| 代理商： | TPS3305-20QDRQ1 |
TPS330615Q1, TPS330618Q1, TPS330620Q1, TPS330625Q1, TPS330633Q1
DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWERFAIL
SGLS241 MARCH 2004
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing diagram
t
td
RESET Because
of Power-Down
RESET Because of WDI
RESET Because of a Power Drop Below VIT
RESET Because of Power-Up
tt(out)
SENSEn
V(nom)
VIT
1.1 V
WDI
1
0
RESET
1
0
Undefined
Behavior
Undefined
Behavior
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
GND
4
I
Ground
PFI
3
I
Power-fail comparator input
PFO
6
O
Power-fail comparator output, open-drain
RESET
5
O
Active-low reset output, open-drain
SENSE1
1
I
Sense voltage input 1
SENSE2
2
I
Sense voltage input 2
WDI
7
I
Watchdog timer input
VDD
8
I
Supply voltage
detailed description
watchdog
In a microprocessor- or DSP-based system, it is not only important to supervise the supply voltage, it is also important
to ensure correct program execution. The task of a watchdog is to ensure that the program is not stalled in an indefinite
loop. The microprocessor, microcontroller, or DSP has to typically toggle the watchdog input within 0.8 s to avoid a
time out occurring. Either a low-to-high or a high-to-low transition resets the internal watchdog timer. If the input is
unconnected or tied with a high impedance driver, the watchdog is disabled and will be retriggered internally.
相關PDF資料 |
PDF描述 |
|---|---|
| TPS3305-18QDRQ1 | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3306-20DRG4 | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3306-20DGKRG4 | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| TPS3307-18QDRG4Q1 | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS3514DG4 | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS3305-25 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:雙處理器監事 |
| TPS3305-25D | 功能描述:監控電路 Dual Processor 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 |
| TPS3305-25DG4 | 功能描述:監控電路 Dual Processor 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 |
| TPS3305-25DGN | 功能描述:監控電路 Dual Processor 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 |
| TPS3305-25DGNG4 | 功能描述:監控電路 Dual Processor 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 |
發布緊急采購，3分鐘左右您將得到回復。