LTC2951 按钮接通/关断控制器
LTC®2951 是一款微功率、宽输入电压范围、按钮接通/关断控制器。该器件包含一个用于控制一个漏极开路使能输出的电平变换按钮输入。按钮关断防反跳时间可从外部进行设置，而接通防反跳时间则固定于 128ms。一个简单的微处理器接口为在断电之前进行正确的系统内务处理创造了条件。在系统故障条件下，一个可调 KILL 超时延迟可确保正确的断电。
LTC2951 可在一个 2.7V 至 26.4V 的宽输入电压范围内运作，以适应各种各样的输入电源。非常低的静态电流 (典型值为 6µA) 使得 LTC2951 成为电池供电型应用的理想选择。该器件有两种版本，以提供正使能极性或负使能极性。器件的封装型式为 8 引脚 3mm x 2mm DFN 和 ThinSOT。
产品特点 Features
参数 |
应用
典型应用图 |
LTC2951 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LTC2951CDDB-1 | DFN | 8 | C | $2.59 | |
| LTC2951CDDB-1#PBF | DFN | 8 | C | $2.59 | |
| LTC2951CDDB-1#TR | DFN | 8 | C | $2.59 | $1.81 |
| LTC2951CDDB-1#TRM | DFN | 8 | C | $2.59 | $1.83 |
| LTC2951CDDB-1#TRMPBF | DFN | 8 | C | $2.59 | $1.83 |
| LTC2951CDDB-1#TRPBF | DFN | 8 | C | $2.59 | $1.81 |
| LTC2951CDDB-2 | DFN | 8 | C | $2.59 | |
| LTC2951CDDB-2#PBF | DFN | 8 | C | $2.59 | |
| LTC2951CDDB-2#TR | DFN | 8 | C | $2.59 | $1.81 |
| LTC2951CDDB-2#TRM | DFN | 8 | C | $2.59 | $1.83 |
| LTC2951CDDB-2#TRMPBF | DFN | 8 | C | $2.59 | $1.83 |
| LTC2951CDDB-2#TRPBF | DFN | 8 | C | $2.59 | $1.81 |
| LTC2951CTS8-1 | SOT | 8 | C | $2.59 | |
| LTC2951CTS8-1#PBF | SOT | 8 | C | $2.59 | |
| LTC2951CTS8-1#TR | SOT | 8 | C | $2.59 | $1.81 |
| LTC2951CTS8-1#TRM | SOT | 8 | C | $2.59 | $1.83 |
| LTC2951CTS8-1#TRMPBF | SOT | 8 | C | $2.59 | $1.83 |
| LTC2951CTS8-1#TRPBF | SOT | 8 | C | $2.59 | $1.81 |
| LTC2951CTS8-2 | SOT | 8 | C | $2.59 | |
| LTC2951CTS8-2#PBF | SOT | 8 | C | $2.59 | |
| LTC2951CTS8-2#TR | SOT | 8 | C | $2.59 | $1.81 |
| LTC2951CTS8-2#TRM | SOT | 8 | C | $2.59 | $1.83 |
| LTC2951CTS8-2#TRMPBF | SOT | 8 | C | $2.59 | $1.83 |
| LTC2951CTS8-2#TRPBF | SOT | 8 | C | $2.59 | $1.81 |
| LTC2951IDDB-1 | DFN | 8 | I | $3.04 | |
| LTC2951IDDB-1#PBF | DFN | 8 | I | $3.04 | |
| LTC2951IDDB-1#TR | DFN | 8 | I | $3.04 | $2.16 |
| LTC2951IDDB-1#TRM | DFN | 8 | I | $3.04 | $2.18 |
| LTC2951IDDB-1#TRMPBF | DFN | 8 | I | $3.04 | $2.18 |
| LTC2951IDDB-1#TRPBF | DFN | 8 | I | $3.04 | $2.16 |
| LTC2951IDDB-2 | DFN | 8 | I | $3.04 | |
| LTC2951IDDB-2#PBF | DFN | 8 | I | $3.04 | |
| LTC2951IDDB-2#TR | DFN | 8 | I | $3.04 | $2.16 |
| LTC2951IDDB-2#TRM | DFN | 8 | I | $3.04 | $2.18 |
| LTC2951IDDB-2#TRMPBF | DFN | 8 | I | $3.04 | $2.18 |
| LTC2951IDDB-2#TRPBF | DFN | 8 | I | $3.04 | $2.16 |
| LTC2951ITS8-1 | SOT | 8 | I | $3.04 | |
| LTC2951ITS8-1#PBF | SOT | 8 | I | $3.04 | |
| LTC2951ITS8-1#TR | SOT | 8 | I | $3.04 | $2.16 |
| LTC2951ITS8-1#TRM | SOT | 8 | I | $3.04 | $2.18 |
| LTC2951ITS8-1#TRMPBF | SOT | 8 | I | $3.04 | $2.18 |
| LTC2951ITS8-1#TRPBF | SOT | 8 | I | $3.04 | $2.16 |
| LTC2951ITS8-2 | SOT | 8 | I | $3.04 | |
| LTC2951ITS8-2#PBF | SOT | 8 | I | $3.04 | |
| LTC2951ITS8-2#TR | SOT | 8 | I | $3.04 | $2.16 |
| LTC2951ITS8-2#TRM | SOT | 8 | I | $3.04 | $2.18 |
| LTC2951ITS8-2#TRMPBF | SOT | 8 | I | $3.04 | $2.18 |
| LTC2951ITS8-2#TRPBF | SOT | 8 | I | $3.04 | $2.16 |
LTC2951 数据手册及相关资料下载
- 数据手册(英文) : LTC2951-1/LTC2951-2 - Push Button On/Off Controller.PDF
- 设计要点 (中文) : DN391 - 按钮接通/关断控制器简化了系统设计.PDF
- 可靠性数据 : R413 Reliability Data .PDF
- 可靠性数据 : R421 Reliability Data .PDF
- 产品选型卡 : High Voltage Pushbutton Controllers.PDF
