TPS3813K33 具有可编程看门狗窗口的监控器
TPS3813K33 描述
The TPS3813 family of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
During power on, RESET is asserted when supply voltage (VDD) becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td = 25 ms typical, starts after VDD has risen above the threshold voltage (VIT). When the supply voltage drops below the threshold voltage (VIT), the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider.
|
TPS3813I50 |
TPS3813J25 |
TPS3813K33 |
TPS3813L30 |
| No. of Supervisors |
1 |
1 |
1 |
1 |
| Vit1(Typ)(V) |
4.55 |
2.25 |
2.93 |
2.64 |
| Reset Threshold Accuracy(%) |
2.2 |
2.2 |
2.2 |
2.3 |
| Time Delay(ms) |
25 |
25 |
25 |
25 |
| IDD(Typ)(uA) |
9 |
9 |
9 |
9 |
| Pin/Package |
6SOT-23 |
6SOT-23 |
6SOT-23 |
6SOT-23 |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
TPS3813K33 特性
- Window-Watchdog With Programmable Delay and Window Ratio
- 6-Pin SOT-23 Package
- Supply Current of 9 uA (Typ)
- Power On Reset Generator With a Fixed Delay Time of 25 ms
- Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V
- Open-Drain Reset Output
- Temperature Range -40°C to +85°C
- APPLICATIONS
- Applications Using DSPs, Microcontrollers, or Microprocessors
- Safety Critical Systems
- Automotive Systems
- Heating Systems
TPS3813K33 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS3813K33DBVR |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
PFBI |
| TPS3813K33DBVRG4 |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
PFBI |
| TPS3813K33DBVT |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
PFBI |
| TPS3813K33DBVTG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
PFBI |
TPS3813K33 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS3813K33DBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3813K33DBVR |
TPS3813K33DBVR |
| TPS3813K33DBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3813K33DBVRG4 |
TPS3813K33DBVRG4 |
| TPS3813K33DBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3813K33DBVT |
TPS3813K33DBVT |
| TPS3813K33DBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3813K33DBVTG4 |
TPS3813K33DBVTG4 |
TPS3813K33 应用技术支持与电子电路设计开发资源下载
- TPS3813K33 数据资料 dataSheet 下载.PDF
- TI 德州仪器监控电路（电压监控器）产品选型与价格 . xls
TPS3813K33 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS3813K33 评估模块 |
TPS3813K33EVM |
Texas Instruments |
开发电路板/EVM |