TPS3705-50 具有电源故障检测功能的处理器监控电路
TPS3705-50 描述
The TPS3705, TPS3707 family of microprocessor supply-voltage supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.
During power-on, RESET\ is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor 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, tdtyp = 200 ms, 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.
|
TPS3705-30 |
TPS3705-33 |
TPS3705-50 |
TPS3707-25 |
TPS3707-30 |
TPS3707-33 |
TPS3707-50 |
| No. of Supervisors |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| Vit1(Typ)(V) |
2.63 |
2.93 |
4.55 |
2.25 |
2.63 |
2.93 |
4.55 |
| Vit2(Typ)(V) |
Adj |
Adj |
Adj |
Adj |
Adj |
Adj |
Adj |
| Reset Threshold Accuracy(%) |
2.1 |
1.9 |
2 |
2.2 |
2.1 |
1.9 |
2 |
| Time Delay(ms) |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
| IDD(Typ)(uA) |
30 |
30 |
30 |
20 |
20 |
20 |
20 |
| Pin/Package |
8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC |
8MSOP-PowerPAD, 8SOIC |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
TPS3705-50 特性
- Power-On Reset Generator with Fixed Delay Time of 200 ms, no External Capacitor Needed
- Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, and 5 V
- Pin-For-Pin Compatible with the MAX705 through MAX708 Series
- Integrated Watchdog Timer (TPS3705 only)
- Voltage Monitor for Power-Fail or Low-Battery Warning
- Maximum Supply Current of 50 uA
- MSOP-8 and SO-8 Packages
- Temperature Range . . . –40°C to 85°C
typical applications
- Designs Using DSPs, Microcontrollers or Microprocessors
- Industrial Equipment
- Programmable Controls
- Automotive Systems
- Portable/Battery Powered Equipment
- Intelligent Instruments
- Wireless Communication Systems
- Notebook/Desktop Computers
TPS3705-50 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 |
| TPS3705-50D |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
70550 |
| TPS3705-50DG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
70550 |
| TPS3705-50DGN |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
MSOP-PowerPAD (DGN) | 8 |
80 | TUBE |
AAT |
| TPS3705-50DGNG4 |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
MSOP-PowerPAD (DGN) | 8 |
80 | TUBE |
AAT |
| TPS3705-50DR |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
70550 |
| TPS3705-50DRG4 |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
70550 |
TPS3705-50 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 |
| TPS3705-50D |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3705-50D |
TPS3705-50D |
| TPS3705-50DG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3705-50DG4 |
TPS3705-50DG4 |
| TPS3705-50DGN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3705-50DGN |
TPS3705-50DGK |
| TPS3705-50DGNG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3705-50DGNG4 |
TPS3705-50DGKG4 |
| TPS3705-50DR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3705-50DR |
TPS3705-50DGKR |
| TPS3705-50DRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3705-50DRG4 |
TPS3705-50DGKRG4 |
TPS3705-50 应用技术支持与电子电路设计开发资源下载
- TPS3705-50 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