LTC2954 具微处理器中断功能的按钮接通/关断控制器
LTC®2954 是一款按钮接通/关断控制器，可通过一个按钮接口来管理系统电源。一个使能输出负责触发系统电源，而一个中断输出则负责提供防反跳按钮状态。中断输出可在菜单驱动型应用中使用，以请求执行系统断电操作。一个断电输入允许微处理器或系统将使能输出复位，从而有效地实现系统断电。可独立调节的接通和关断定时器实现了使能输出的可靠按钮控制，并能阻止系统电源的意外触发。
LTC2954 可在一个 2.7V 至 26.4V 的宽输入电压范围内运作，以适应多种输入电源。非常低的静态电流 (典型值为 6μA) 使 LTC2954 成为电池供电型应用的理想选择。该器件可提供两种版本，以适应正或负使能极性。
产品特点 Features
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应用
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LTC2954 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) * |
| LTC2954CDDB-1 | DFN | 8 | C | $2.59 | |
| LTC2954CDDB-1#PBF | DFN | 8 | C | $2.59 | |
| LTC2954CDDB-1#TR | DFN | 8 | C | $2.59 | $1.81 |
| LTC2954CDDB-1#TRM | DFN | 8 | C | $2.59 | $1.83 |
| LTC2954CDDB-1#TRMPBF | DFN | 8 | C | $2.59 | $1.83 |
| LTC2954CDDB-1#TRPBF | DFN | 8 | C | $2.59 | $1.81 |
| LTC2954CDDB-2 | DFN | 8 | C | $2.59 | |
| LTC2954CDDB-2#PBF | DFN | 8 | C | $2.59 | |
| LTC2954CDDB-2#TR | DFN | 8 | C | $2.59 | $1.81 |
| LTC2954CDDB-2#TRM | DFN | 8 | C | $2.59 | $1.83 |
| LTC2954CDDB-2#TRMPBF | DFN | 8 | C | $2.59 | $1.83 |
| LTC2954CDDB-2#TRPBF | DFN | 8 | C | $2.59 | $1.81 |
| LTC2954CTS8-1 | SOT | 8 | C | $2.59 | |
| LTC2954CTS8-1#PBF | SOT | 8 | C | $2.59 | |
| LTC2954CTS8-1#TR | SOT | 8 | C | $2.59 | $1.81 |
| LTC2954CTS8-1#TRM | SOT | 8 | C | $2.59 | $1.83 |
| LTC2954CTS8-1#TRMPBF | SOT | 8 | C | $2.59 | $1.83 |
| LTC2954CTS8-1#TRPBF | SOT | 8 | C | $2.59 | $1.81 |
| LTC2954CTS8-2 | SOT | 8 | C | $2.59 | |
| LTC2954CTS8-2#PBF | SOT | 8 | C | $2.59 | |
| LTC2954CTS8-2#TR | SOT | 8 | C | $2.59 | $1.81 |
| LTC2954CTS8-2#TRM | SOT | 8 | C | $2.59 | $1.83 |
| LTC2954CTS8-2#TRMPBF | SOT | 8 | C | $2.59 | $1.83 |
| LTC2954CTS8-2#TRPBF | SOT | 8 | C | $2.59 | $1.81 |
| LTC2954IDDB-1 | DFN | 8 | I | $3.04 | |
| LTC2954IDDB-1#PBF | DFN | 8 | I | $3.04 | |
| LTC2954IDDB-1#TR | DFN | 8 | I | $3.04 | $2.16 |
| LTC2954IDDB-1#TRM | DFN | 8 | I | $3.04 | $2.18 |
| LTC2954IDDB-1#TRMPBF | DFN | 8 | I | $3.04 | $2.18 |
| LTC2954IDDB-1#TRPBF | DFN | 8 | I | $3.04 | $2.16 |
| LTC2954IDDB-2 | DFN | 8 | I | $3.04 | |
| LTC2954IDDB-2#PBF | DFN | 8 | I | $3.04 | |
| LTC2954IDDB-2#TR | DFN | 8 | I | $3.04 | $2.16 |
| LTC2954IDDB-2#TRM | DFN | 8 | I | $3.04 | $2.18 |
| LTC2954IDDB-2#TRMPBF | DFN | 8 | I | $3.04 | $2.18 |
| LTC2954IDDB-2#TRPBF | DFN | 8 | I | $3.04 | $2.16 |
| LTC2954ITS8-1 | SOT | 8 | I | $3.04 | |
| LTC2954ITS8-1#PBF | SOT | 8 | I | $3.04 | |
| LTC2954ITS8-1#TR | SOT | 8 | I | $3.04 | $2.16 |
| LTC2954ITS8-1#TRM | SOT | 8 | I | $3.04 | $2.18 |
| LTC2954ITS8-1#TRMPBF | SOT | 8 | I | $3.04 | $2.18 |
| LTC2954ITS8-1#TRPBF | SOT | 8 | I | $3.04 | $2.16 |
| LTC2954ITS8-2 | SOT | 8 | I | $3.04 | |
| LTC2954ITS8-2#PBF | SOT | 8 | I | $3.04 | |
| LTC2954ITS8-2#TR | SOT | 8 | I | $3.04 | $2.16 |
| LTC2954ITS8-2#TRM | SOT | 8 | I | $3.04 | $2.18 |
| LTC2954ITS8-2#TRMPBF | SOT | 8 | I | $3.04 | $2.18 |
| LTC2954ITS8-2#TRPBF | SOT | 8 | I | $3.04 | $2.16 |
LTC2954 数据手册及相关资料下载
- 数据手册(英文) : LTC2954 - Push Button On/Off Controller with uP Interrupt.PDF
- 可靠性数据 : R536 Reliability Data .PDF
- 产品选型卡 : High Voltage Pushbutton Controllers.PDF
