TPS3837K33 具有 10ms/200ms 可选择延迟时间的 220nA 监控器
TPS3837K33 描述
The TPS3836, TPS3837, and TPS3838 families of supervisory circuits 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 supervisory circuit monitors VDD and keeps the RESET output active as long as VDD remains below the threshold voltage of VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD has risen above the threshold voltage VIT.
When CT is connected to GND, a fixed delay time of typical 10 ms is asserted. When connected to VDD, the delay time is typically 200 ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again
|
TPS3836E18 |
TPS3836H30 |
TPS3836J25 |
TPS3836K33 |
TPS3836L30 |
TPS3837E18 |
TPS3837J25 |
TPS3837K33 |
TPS3837L30 |
TPS3838E18 |
TPS3838J25 |
TPS3838K33 |
TPS3838L30 |
| No. of Supervisors |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Vit1(Typ)(V) |
1.71 |
2.79 |
2.25 |
2.93 |
2.64 |
1.71 |
2.25 |
2.93 |
2.64 |
1.71 |
2.25 |
2.93 |
2.64 |
| Reset Threshold Accuracy(%) |
2.4 |
2.7 |
2.5 |
2.6 |
2.5 |
2.4 |
2.5 |
2.6 |
2.5 |
2.4 |
2.5 |
2.6 |
2.5 |
| Time Delay(ms) |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
10/200 |
| IDD(Typ)(uA) |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
| Pin/Package |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23 |
5SOT-23, 6SON |
5SOT-23 |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
TPS3837K33 特性
- Supply Current: 220 nA (typical)
- Precision Supply Voltage SupervisionRange: 1.8 V, 2.5 V, 3.0 V, and 3.3 V
- Power-On Reset Generator With Selectable Delay Time: 10 ms or 200 ms
- Push/Pull RESET Output (TPS3836), RESET Output (TPS3837), or Open-Drain RESET Output (TPS3838)
- Manual Reset
- SOT23-5 and 2x2 SON-6 Packages
- Temperature Range: -40°C to +85°C
- APPLICATIONS
- Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors
- Portable- and Battery-Powered Equipment
- Intelligent Instruments
- Wireless Communication Systems
- Notebook Computers
- Automotive Systems
- Applications Using the MSP430TM
TPS3837K33 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 |
| TPS3837K33DBVR |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
PDNI |
| TPS3837K33DBVRG4 |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
PDNI |
| TPS3837K33DBVT |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
PDNI |
| TPS3837K33DBVTG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
PDNI |
TPS3837K33 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 |
| TPS3837K33DBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3837K33DBVR |
TPS3837K33DBVR |
| TPS3837K33DBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3837K33DBVRG4 |
TPS3837K33DBVRG4 |
| TPS3837K33DBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3837K33DBVT |
TPS3837K33DBVT |
| TPS3837K33DBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TPS3837K33DBVTG4 |
TPS3837K33DBVTG4 |
TPS3837K33 应用技术支持与电子电路设计开发资源下载
- TPS3837K33 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
TPS3837K33 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS3837K33 评估模块 |
TPS3837K33EVM |
Texas Instruments |
开发电路板/EVM |