TPS3805H33-Q1
- Qualified for Automotive Applications
- Single Voltage Detector (TPS3803): Adjustable
and 1.5 V - Dual Voltage Detector (TPS3805): Adjustable and
3.3 V - High ±1.5% Threshold Voltage Accuracy
- Supply Current: 3 µA Typical at VDD = 3.3 V
- Push/Pull Reset Output (TPS3805),
Open-Drain Reset Output (TPS3803) - Temperature Range: –40°C to 125°C
- 5-Pin SC-70 Package
The TPS3803-Q1 and TPS3805-Q1 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.
The TPS3803G15-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01-Q1 has an adjustable SENSE input that can be configured by two external resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805-Q1 devices provide a second adjustable SENSE input. RESET is asserted in case either of the two voltages drops below VIT.
During power on, RESET is asserted when supply voltage VDD becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD (and/or SENSE) and keeps RESET active as long as VDD or SENSE remains below the threshold voltage VIT. As soon as VDD (SENSE) rises above the threshold voltage VIT, RESET is deasserted again. The product spectrum is designed for 1.5-V, 3.3-V, and adjustable supply voltages.
The devices are available in a 5-pin SC-70 package. The TPS3803-Q1 and TPS3805-Q1 devices are characterized for operation over a temperature range of –40°C to 125°C.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS380x-Q1 Voltage Detectors 数据表 (Rev. C) | PDF | HTML | 2015-7-24 | ||
| 电子书 | 电压监测仪和电压检测器：提示、技巧和基础知识 | 英语版 | 2019-8-28 | |||
| 选择指南 | Automotive Supervisor and Reset IC Selection Guide | PDF | HTML | 2016-2-22 |
设计与开发
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TPS3803Q1EVM — TPS3803x-Q1 电压检测器评估模块
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOT-SC70 (DCK) | 5 | Ultra Librarian |