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参数资料
| 型号： | TPS3306-25DG4 |
| 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： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 13/18页 |
| 文件大小： | 468K |
| 代理商： | TPS3306-25DG4 |
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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
DETAILED DESCRIPTION
Watchdog
SLVS290C – APRIL 2000 – REVISED DECEMBER 2006
TIMING DIAGRAM
Table 4. Terminal Functions
TERMINAL
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
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 typically has to 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.
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS3306-25DGK | 功能描述:监控电路 Dual-Processor with Power-Fail 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 |
| TPS3306-25DGKG4 | 功能描述:监控电路 Dual-Processor with Power-Fail 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 |
| TPS3306-25DGKR | 功能描述:监控电路 Dual-Processor with Power-Fail 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 |
| TPS3306-25DGKRG4 | 功能描述:监控电路 Dual-Processor with Power-Fail 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 |
| TPS3306-25DKG | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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