LTC4365 - 欠压、过压和电源反向保护控制器
LTC®4365 可为那些电源输入电压有可能过高、过低、甚至为负值的应用提供保护。该器件通过控制一对外部 N 沟道 MOSFET 的栅极电压来实现这种保护功能，以确保输出处于一个安全的工作范围之内。 LTC4365 能承受 -40V 至 60V 的电压，并具有一个 2.5V 至 34V 的工作范围，而在正常运作中的电流消耗仅为 125μA。 两个比较器输入采用一个外部阻性分压器提供了过压 (OV) 和欠压 (UV) 设定点的配置。一个停机引脚负责提供用于使能和停用 MOSFET 以及将器件置于一种低电流停机状态的外部控制。一个故障输出可提供被拉至低电平的 GATE 引脚状态。当器件处于停机状态或输入电压超出了 UV 和 OV 设定点的范围时，将指示有故障发生。
LTC4365 具有一个 36ms 的接通延迟，用于对带电连接实施防反跳并隔离 50Hz 至 60Hz AC 电源。为了在故障之后实现快速恢复，LTC4365-1 将接通延迟缩短至 1ms。
特点
典型应用  | 应用
封装信息  |
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|---|---|---|---|
| LTC4365CDDB-1#PBF | 3x2 DFN-8 | C | $2.18 | |
| LTC4365CDDB-1#TRMPBF | 3x2 DFN-8 | C | $2.18 | $1.54 |
| LTC4365CDDB-1#TRPBF | 3x2 DFN-8 | C | $2.13 | $1.49 |
| LTC4365CDDB#PBF | 3x2 DFN-8 | C | $2.18 | |
| LTC4365CDDB#TRMPBF | 3x2 DFN-8 | C | $2.18 | $1.54 |
| LTC4365CDDB#TRPBF | 3x2 DFN-8 | C | $2.13 | $1.49 |
| LTC4365CTS8-1#PBF | SOT-23 | C | $2.18 | |
| LTC4365CTS8-1#TRMPBF | SOT-23 | C | $2.18 | $1.54 |
| LTC4365CTS8-1#TRPBF | SOT-23 | C | $2.13 | $1.49 |
| LTC4365CTS8#PBF | SOT-23 | C | $2.18 | |
| LTC4365CTS8#TRMPBF | SOT-23 | C | $2.18 | $1.54 |
| LTC4365CTS8#TRPBF | SOT-23 | C | $2.13 | $1.49 |
| LTC4365HDDB-1#PBF | 3x2 DFN-8 | H | $2.63 | |
| LTC4365HDDB-1#TRMPBF | 3x2 DFN-8 | H | $2.63 | $1.85 |
| LTC4365HDDB-1#TRPBF | 3x2 DFN-8 | H | $2.58 | $1.80 |
| LTC4365HDDB#PBF | 3x2 DFN-8 | H | $2.63 | |
| LTC4365HDDB#TRMPBF | 3x2 DFN-8 | H | $2.63 | $1.85 |
| LTC4365HDDB#TRPBF | 3x2 DFN-8 | H | $2.58 | $1.80 |
| LTC4365HTS8-1#PBF | SOT-23 | H | $2.63 | |
| LTC4365HTS8-1#TRMPBF | SOT-23 | H | $2.63 | $1.85 |
| LTC4365HTS8-1#TRPBF | SOT-23 | H | $2.58 | $1.80 |
| LTC4365HTS8#PBF | SOT-23 | H | $2.63 | |
| LTC4365HTS8#TRMPBF | SOT-23 | H | $2.63 | $1.85 |
| LTC4365HTS8#TRPBF | SOT-23 | H | $2.58 | $1.80 |
| LTC4365IDDB-1#PBF | 3x2 DFN-8 | I | $2.39 | |
| LTC4365IDDB-1#TRMPBF | 3x2 DFN-8 | I | $2.39 | $1.69 |
| LTC4365IDDB-1#TRPBF | 3x2 DFN-8 | I | $2.34 | $1.64 |
| LTC4365IDDB#PBF | 3x2 DFN-8 | I | $2.39 | |
| LTC4365IDDB#TRMPBF | 3x2 DFN-8 | I | $2.39 | $1.69 |
| LTC4365IDDB#TRPBF | 3x2 DFN-8 | I | $2.34 | $1.64 |
| LTC4365ITS8-1#PBF | SOT-23 | I | $2.39 | |
| LTC4365ITS8-1#TRMPBF | SOT-23 | I | $2.39 | $1.69 |
| LTC4365ITS8-1#TRPBF | SOT-23 | I | $2.34 | $1.64 |
| LTC4365ITS8#PBF | SOT-23 | I | $2.39 | |
| LTC4365ITS8#TRMPBF | SOT-23 | I | $2.39 | $1.69 |
| LTC4365ITS8#TRPBF | SOT-23 | I | $2.34 | $1.64 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1555B | LTC4365CTS8 Demo Board: High Voltage NFET Driver for UV, OV and Reverse Supply Protection | $25.00 |
| DC1555C-B | LTC4365CTS8-1 Demo Board | High Voltage NFET Driver for UV, OV and Reverse Supply Protection with 1ms Fault Recovery | $25.00 |
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- 面向 Altera Arria 10 并经验证的 FPGA 电源解决方案
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- Avoid Debugging Cycles in Power Management for FPGA, GPU and ASIC Systems
- No Blocking Diode Needed to Protect Sensitive Circuits from Overvoltage and Reverse Supply Connections
- Proven Power Solutions for Altera Arria 10 FPGA
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- LTC4365 Footprints and Symbols
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