LTC2909 精准三路/双路输入 UV、OV 和负电压监视器
LTC®2909 是一款面向众多系统监视应用的双路输入监视器。极性选择和一个缓冲基准输出使得 LTC2909 能够对正电源和负电源进行欠压 (UV) 和过压 (OV) 条件的监视。
两个输入具有 0.5V 的标称门限，并在整个工作温度范围内拥有 1.5% 的严格门限准确度。干扰滤波处理确保了可靠的复位操作 (不会发生误触发现象)。在该器件的 VCC 上布设了第三个固定门限 UVLO 监视器（准确度亦为 1.5%），可用于标准逻辑电源。
公用复位输出具有一个超时周期 (可以采用预设的 200ms)，由一个外部电容器来设定，也可以停用。一个三态输入引脚负责设定每个可调输入的输入极性，而无需使用任何外部元件。
LTC2909 提供了一款面向电源监视应用的高度通用、精准且具有节省空间意识的微功耗型解决方案。
产品特点 Features
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应用
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LTC2909 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) * |
| LTC2909CDDB-2.5 | DFN | 8 | C | $2.30 | |
| LTC2909CDDB-2.5#PBF | DFN | 8 | C | $2.30 | |
| LTC2909CDDB-2.5#TR | DFN | 8 | C | $2.30 | $1.61 |
| LTC2909CDDB-2.5#TRM | DFN | 8 | C | $2.30 | $1.63 |
| LTC2909CDDB-2.5#TRMPBF | DFN | 8 | C | $2.30 | $1.63 |
| LTC2909CDDB-2.5#TRPBF | DFN | 8 | C | $2.30 | $1.61 |
| LTC2909CDDB-3.3 | DFN | 8 | C | $2.30 | |
| LTC2909CDDB-3.3#PBF | DFN | 8 | C | $2.30 | |
| LTC2909CDDB-3.3#TR | DFN | 8 | C | $2.30 | $1.61 |
| LTC2909CDDB-3.3#TRM | DFN | 8 | C | $2.30 | $1.63 |
| LTC2909CDDB-3.3#TRMPBF | DFN | 8 | C | $2.30 | $1.63 |
| LTC2909CDDB-3.3#TRPBF | DFN | 8 | C | $2.30 | $1.61 |
| LTC2909CDDB-5 | DFN | 8 | C | $2.30 | |
| LTC2909CDDB-5#PBF | DFN | 8 | C | $2.30 | |
| LTC2909CDDB-5#TR | DFN | 8 | C | $2.30 | $1.61 |
| LTC2909CDDB-5#TRM | DFN | 8 | C | $2.30 | $1.63 |
| LTC2909CDDB-5#TRMPBF | DFN | 8 | C | $2.30 | $1.63 |
| LTC2909CDDB-5#TRPBF | DFN | 8 | C | $2.30 | $1.61 |
| LTC2909CTS8-2.5 | SOT | 8 | C | $2.30 | |
| LTC2909CTS8-2.5#PBF | SOT | 8 | C | $2.30 | |
| LTC2909CTS8-2.5#TR | SOT | 8 | C | $2.30 | $1.61 |
| LTC2909CTS8-2.5#TRM | SOT | 8 | C | $2.30 | $1.63 |
| LTC2909CTS8-2.5#TRMPBF | SOT | 8 | C | $2.30 | $1.63 |
| LTC2909CTS8-2.5#TRPBF | SOT | 8 | C | $2.30 | $1.61 |
| LTC2909CTS8-3.3 | SOT | 8 | C | $2.30 | |
| LTC2909CTS8-3.3#PBF | SOT | 8 | C | $2.30 | |
| LTC2909CTS8-3.3#TR | SOT | 8 | C | $2.30 | $1.61 |
| LTC2909CTS8-3.3#TRM | SOT | 8 | C | $2.30 | $1.63 |
| LTC2909CTS8-3.3#TRMPBF | SOT | 8 | C | $2.30 | $1.63 |
| LTC2909CTS8-3.3#TRPBF | SOT | 8 | C | $2.30 | $1.61 |
| LTC2909CTS8-5 | SOT | 8 | C | $2.30 | |
| LTC2909CTS8-5#PBF | SOT | 8 | C | $2.30 | |
| LTC2909CTS8-5#TR | SOT | 8 | C | $2.30 | $1.61 |
| LTC2909CTS8-5#TRM | SOT | 8 | C | $2.30 | $1.63 |
| LTC2909CTS8-5#TRMPBF | SOT | 8 | C | $2.30 | $1.63 |
| LTC2909CTS8-5#TRPBF | SOT | 8 | C | $2.30 | $1.61 |
| LTC2909IDDB-2.5 | DFN | 8 | I | $2.73 | |
| LTC2909IDDB-2.5#PBF | DFN | 8 | I | $2.73 | |
| LTC2909IDDB-2.5#TR | DFN | 8 | I | $2.73 | $1.91 |
| LTC2909IDDB-2.5#TRM | DFN | 8 | I | $2.73 | $1.93 |
| LTC2909IDDB-2.5#TRMPBF | DFN | 8 | I | $2.73 | $1.93 |
| LTC2909IDDB-2.5#TRPBF | DFN | 8 | I | $2.73 | $1.91 |
| LTC2909IDDB-3.3 | DFN | 8 | I | $2.73 | |
| LTC2909IDDB-3.3#PBF | DFN | 8 | I | $2.73 | |
| LTC2909IDDB-3.3#TR | DFN | 8 | I | $2.73 | $1.91 |
| LTC2909IDDB-3.3#TRM | DFN | 8 | I | $2.73 | $1.93 |
| LTC2909IDDB-3.3#TRMPBF | DFN | 8 | I | $2.73 | $1.93 |
| LTC2909IDDB-3.3#TRPBF | DFN | 8 | I | $2.73 | $1.91 |
| LTC2909IDDB-5 | DFN | 8 | I | $2.73 | |
| LTC2909IDDB-5#PBF | DFN | 8 | I | $2.73 | |
| LTC2909IDDB-5#TR | DFN | 8 | I | $2.73 | $1.91 |
| LTC2909IDDB-5#TRM | DFN | 8 | I | $2.73 | $1.93 |
| LTC2909IDDB-5#TRMPBF | DFN | 8 | I | $2.73 | $1.93 |
| LTC2909IDDB-5#TRPBF | DFN | 8 | I | $2.73 | $1.91 |
| LTC2909ITS8-2.5 | SOT | 8 | I | $2.73 | |
| LTC2909ITS8-2.5#PBF | SOT | 8 | I | $2.73 | |
| LTC2909ITS8-2.5#TR | SOT | 8 | I | $2.73 | $1.91 |
| LTC2909ITS8-2.5#TRM | SOT | 8 | I | $2.73 | $1.93 |
| LTC2909ITS8-2.5#TRMPBF | SOT | 8 | I | $2.73 | $1.93 |
| LTC2909ITS8-2.5#TRPBF | SOT | 8 | I | $2.73 | $1.91 |
| LTC2909ITS8-3.3 | SOT | 8 | I | $2.73 | |
| LTC2909ITS8-3.3#PBF | SOT | 8 | I | $2.73 | |
| LTC2909ITS8-3.3#TR | SOT | 8 | I | $2.73 | $1.91 |
| LTC2909ITS8-3.3#TRM | SOT | 8 | I | $2.73 | $1.93 |
| LTC2909ITS8-3.3#TRMPBF | SOT | 8 | I | $2.73 | $1.93 |
| LTC2909ITS8-3.3#TRPBF | SOT | 8 | I | $2.73 | $1.91 |
| LTC2909ITS8-5 | SOT | 8 | I | $2.73 | |
| LTC2909ITS8-5#PBF | SOT | 8 | I | $2.73 | |
| LTC2909ITS8-5#TR | SOT | 8 | I | $2.73 | $1.91 |
| LTC2909ITS8-5#TRM | SOT | 8 | I | $2.73 | $1.93 |
| LTC2909ITS8-5#TRMPBF | SOT | 8 | I | $2.73 | $1.93 |
| LTC2909ITS8-5#TRPBF | SOT | 8 | I | $2.73 | $1.91 |
LTC2909 数据手册及相关资料下载
- 数据手册(英文) : LTC2909 - Precision Triple/Dual Input UV, OV and Negative Voltage Monitor.PDF
- 可靠性数据 : R413 Reliability Data .PDF
- 产品选型卡 : High Voltage Surge Stoppers.PDF
- 产品选型卡 : Voltage Monitors & Supervisors Quick Guide.PDF
