TPS3818G18 低静态电流可编程延迟监控电路
TPS3818G18 描述
The TPS3818xxx family of microprocessor supervisory circuitsmonitor system voltages from 0.4V to 5.0V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.
The TPS3818 uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3V. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor
|
TPS3818G01 |
TPS3818G09 |
TPS3818G12 |
TPS3818G125 |
TPS3818G15 |
TPS3818G18 |
TPS3818G25 |
TPS3818G30 |
TPS3818G33 |
| No. of Supervisors |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Vit1(Typ)(V) |
Adj |
0.84 |
1.12 |
1.16 |
1.4 |
1.67 |
2.33 |
2.79 |
3.07 |
| Reset Threshold Accuracy(%) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
| Time Delay(ms) |
|
|
|
|
|
|
Prog |
|
|
| # of supplies monitored |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| IDD(Typ)(uA) |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
| Pin/Package |
6SON |
6SON |
6SON |
6SON |
6SON |
6SON |
6SON |
6SON |
6SON |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
TPS3818G18 特性
- Power-On Reset Generator withAdjustable Delay Time: 1.25ms to 10s
- Very Low Quiescent Current: 2.4uA typ
- High Threshold Accuracy: 0.5% typ
- Fixed Threshold Voltages for Standard Voltage Rails from 0.9V to 5V and Adjustable Voltage Down to 0.4V Are Available
- Manual Reset (MR) Input
- Open-Drain RESET Output
- Temperature Range: -40°C to +125°C
- Small SOT23 and 2mm × 2mm QFN Packages
- APPLICATIONS
- DSP or Microcontroller Applications
- Notebook/Desktop Computers
- PDAs/Hand-Held Products
- Portable/Battery-Powered Products
- FPGA/ASIC Applications
TPS3818G18 芯片订购指南
TPS3818G18 应用技术支持与电子电路设计开发资源下载
- TPS3818G18 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
TPS3818G18 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS3818G18 评估模块 |
TPS3818G18EVM |
Texas Instruments |
开发电路板/EVM |