DS1817：高有效、3.3V、经济型复位芯片
The DS1812 (5V) and DS1817 (3.3V) EconoResets are simple three-pin voltage monitors and power-on resets that hold reset for 150ms for stabilization after power returns to tolerance. The voltage monitor uses precision temperature reference and comparator circuits that detect out-of-tolerance conditions and generate an active high reset. The output has a push-structure capable of maintaining a valid output to 0 volts with a 100kΩ pull-down resistor. The low-power circuit has a quiescent current consumption of only 40 micro-amps. The DS1817 replaces discrete components and saves space, particularly in the new SOT-23 package. EconoResets can benefit any system that requires reliable processor operation, especially consumer products like printers, HVAC, energy management, cellular telephones, PDAs, and set-top boxes.
关键特性
| DS1817：原理框图 |
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | DS1817.pdf | Rev 1; 11/1999 |
关键参数
| Part Number | Reset Thresh. (V) | Reset Out | tRESET | Watchdog Feature | Reset Thresh. Accur. (%) | ICC (µA) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|
| min | @ +25°C | max | See Notes | |||||
| DS1817 | 2.5 to 3.3 |
| 85ms to 300ms | No Watchdog | 2.5 | 35 |
| $0.40 @1k |
质量和环境数据
订购型号
| 型号 | 注 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|---|
| DS1817-10 | 3.3V-10%监测精度 | 停止供货 | DS1817-10+ | TO92,；3引脚；19.5mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817-10+ | 生产中 | TO92,；3引脚；19.5mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1817-10+T&R | 3.3V-10% | 生产中 | TO92,；3引脚；27.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1817-10/T&R | 3.3V-10% | 停止供货 | DS1817-10+T&R | TO92,；3引脚；27.6mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817-20 | 3.3V-20%监测精度 | 停止供货 | DS1817-20+ | TO92,；3引脚；19.5mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817-20+ | 生产中 | TO92,；3引脚；19.5mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1817-20+T&R | 3.3V-20% | 生产中 | TO92,；3引脚；27.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1817-20/T&R | 3.3V-20% | 停止供货 | DS1817-20+T&R | TO92,；3引脚；27.6mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817-5 | 3.3V-5%监测精度 | 停止供货 | DS1817-5+ | TO92,；3引脚；19.5mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817-5+ | 生产中 | TO92,；3引脚；19.5mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| 型号 | 注 | 状况 | 推荐替代产品 | 封装：类型 引脚 占位面积封装图 编码/变更 * | 温度 | RoHS/无铅？ |
| DS1817-5+T&R | 3.3V-5% | 生产中 | TO92,；3引脚；27.6mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1817-5/T&R | 3.3V-5% | 停止供货 | DS1817-5+T&R | TO92,；3引脚；27.6mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817R-10+T&R | 3.3V-10% | 生产中 | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1817R-10-U | 停止供货 | DS1817R-10-U+ | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1817R-10-U+ | 生产中 | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1817R-10/T&R | 3.3V-10% | 停止供货 | DS1817R-10+T&R | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：否 |
| DS1817R-20+T&R | 3.3V-20% | 生产中 | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1817R-20-U | 停止供货 | DS1817R-20-U+ | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1817R-20-U+ | 生产中 | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1817R-20/T&R | 3.3V-20% | 停止供货 | DS1817R-20+T&R | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：否 |
| 型号 | 注 | 状况 | 推荐替代产品 | 封装：类型 引脚 占位面积封装图 编码/变更 * | 温度 | RoHS/无铅？ |
| DS1817R-5+T&R | 3.3V-5% | 生产中 | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| DS1817R-5-U | 停止供货 | DS1817R-5-U+ | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：否 | |
| DS1817R-5-U+ | 生产中 | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：无铅 | ||
| DS1817R-5/T&R | 3.3V-5% | 停止供货 | DS1817R-5+T&R | SOT,；3引脚；8mm² | -40°C至+85°C | RoHS/无铅：否 |
- DS1817.pdf DS1817
- DS1817.pdf DS1817
- DS1817.pdf DS1817
- DS1817.pdf DS1817
- 原理框图 DS1817
