LTC4231

推荐用于新设计

微功率热插拔控制器

数据手册 (Rev. B) 产品选型表

产品模型: 32

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概述

可将电路板安全插入电源，或从电源中移除
电源电流：4µA
关断电流：0.3µA
宽工作电压范围：2.7V至36V
反向电源电压保护可达-40V
带断路器的可调模拟电流限制功能

发生电流故障时执行自动重试或锁定

过压和欠压监控

控制单沟道或背靠背N沟道MOSFET

12引脚MSOP和3mm × 3mm QFN封装

AEC-Q100通过汽车应用认证

LTC^®4231 是一款微功率热插拔 (Hot Swap^™) 控制器，其允许在工作中的电源上安全地进行电路板的插拔操作。一个内部高压侧开关驱动器负责控制一个外部 N 沟道 MOSFET。背对背 MOSFET 可用于提供低至–40V 的反向电源保护。

LTC4231 可提供一个防反跳延迟并允许 GATE 以一种可调速率斜坡上升。在启动之后，LTC4231 的静态电流在正常操作期间 (输出处于运行状态) 下降至 4μA。UVL、UVH、OV 和 GNDSW 周期性地监察过压和欠压情况，并将总静态电流保持在低水平。把 SHDN 拉至低电平可关断 LTC4231，此时静态电流减小至 0.3μA。

在过流故障期间，LTC4231 在运行一个可调定时器的同时主动地限制电流。LTC4231-1 在电流故障之后保持关断状态，而 LTC4231-2 则在一个冷却周期之后自动重新施加电源。

应用

电池供电型设备
太阳能供电型系统
便携式仪器
汽车电池保护
能量收集

产品模型: 32

参考资料

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
LTC4231CMS-1#PBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CMS-1#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CMS-2#PBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CMS-2#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CUD-1#PBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CUD-1#TRPBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CUD-2#PBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231CUD-2#TRPBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-1#PBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-1#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-1#WPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-1#WTRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-2#PBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-2#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-2#WPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HMS-2#WTRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HUD-1#PBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HUD-1#TRPBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HUD-2#PBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231HUD-2#TRPBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-1#PBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-1#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-1#WPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-1#WTRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-2#PBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-2#TRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-2#WPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IMS-2#WTRPBF	12-Lead MSOP	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IUD-1#PBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IUD-1#TRPBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IUD-2#PBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys
LTC4231IUD-2#TRPBF	12-Lead QFN (3mm x 3mm x 0.75mm w/ EP)	Material Declaration Reliablity Data 资料包	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN

6月 6, 2025 - 25_0119 Bond Wire Change from Gold to Copper
		PCN25_0119_Form Material_Report Delta Qualification Matrix Qualification Results Summary
LTC4231CMS-1#PBF	量产
LTC4231CMS-1#TRPBF	量产
LTC4231CMS-2#PBF	量产
LTC4231CMS-2#TRPBF	量产
LTC4231HMS-2#WPBF	量产
LTC4231HMS-2#WTRPBF	量产
LTC4231IMS-1#PBF	量产
LTC4231IMS-1#TRPBF	量产
LTC4231IMS-1#WPBF	量产
LTC4231IMS-1#WTRPBF	量产
LTC4231IMS-2#WPBF	量产
LTC4231IMS-2#WTRPBF	量产
2月 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0129_Form Material_Report
LTC4231CMS-1#PBF	量产
LTC4231CMS-1#TRPBF	量产
LTC4231CMS-2#PBF	量产
LTC4231CMS-2#TRPBF	量产
LTC4231HMS-1#PBF	量产
LTC4231HMS-1#TRPBF	量产
LTC4231HMS-1#WPBF	量产
LTC4231HMS-1#WTRPBF	量产
LTC4231HMS-2#PBF	量产
LTC4231HMS-2#TRPBF	量产
LTC4231HMS-2#WPBF	量产
LTC4231HMS-2#WTRPBF	量产
LTC4231IMS-1#PBF	量产
LTC4231IMS-1#TRPBF	量产
LTC4231IMS-1#WPBF	量产
LTC4231IMS-1#WTRPBF	量产
LTC4231IMS-2#PBF	量产
LTC4231IMS-2#TRPBF	量产
LTC4231IMS-2#WPBF	量产
LTC4231IMS-2#WTRPBF	量产
4月 17, 2025 - 25_0043 Change of Gold to Copper Wire and BOM (Automotive)
		PCN25_0043_Form Material_Report Delta Qualification Matrix Qualification Results Summary
LTC4231CUD-1#PBF	量产
LTC4231CUD-1#TRPBF	量产
LTC4231CUD-2#PBF	量产
LTC4231CUD-2#TRPBF	量产
LTC4231HUD-1#PBF	量产
LTC4231HUD-1#TRPBF	量产
10月 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package
		PCN22_0244_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC4231HMS-1#WPBF	量产
LTC4231HMS-1#WTRPBF	量产
LTC4231HMS-2#WPBF	量产
LTC4231HMS-2#WTRPBF	量产
LTC4231IMS-1#WPBF	量产
LTC4231IMS-1#WTRPBF	量产
LTC4231IMS-2#WPBF	量产
LTC4231IMS-2#WTRPBF	量产
7月 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]
		PCN22_0157_Form Material_Report Qualification Results Summary Delta Qualification Matrix Detailed Parts List
LTC4231HMS-1#WPBF	量产
LTC4231HMS-1#WTRPBF	量产
LTC4231HMS-2#WPBF	量产
LTC4231HMS-2#WTRPBF	量产
LTC4231IMS-1#WPBF	量产
LTC4231IMS-1#WTRPBF	量产
LTC4231IMS-2#WPBF	量产
LTC4231IMS-2#WTRPBF	量产
6月 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices
		PCN22_0050_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC4231HMS-1#WPBF	量产
LTC4231HMS-1#WTRPBF	量产
LTC4231HMS-2#WPBF	量产
LTC4231HMS-2#WTRPBF	量产
LTC4231IMS-1#WPBF	量产
LTC4231IMS-1#WTRPBF	量产
LTC4231IMS-2#WPBF	量产
LTC4231IMS-2#WTRPBF	量产

这是最新版本的数据手册

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硬件生态系统

部分模型	产品周期	描述
保护开关和控制器 3
LTC4380	推荐用于新设计	低静态电流浪涌抑制器
LTC4359	推荐用于新设计	具反向输入保护功能的理想二极管控制器
LTC4417	推荐用于新设计	确定了优先级的 PowerPath^™ 控制器

工具及仿真模型

LTspice

LTspice中提供以下器件型号：

LTC4231-1
LTC4231-2

LTspice^®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

评估套件

LTC4231IMS-1 Demo Board | Micropower Hot Swap Controller with Latch-Off

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产品详情

Demonstration circuit 2161A showcases the LTC4231 Micropower Hot Swap™ Controller in a 12V, 3A application. Included on the board are input overvoltage and reverse voltage protection, input voltage dividers for UV and OV detection, an output voltage LED, jumpers to disable UV/OV, manual and remote enable control, and quiescent current measurement. There are turrets provided to monitor input voltage, output voltage, output status, quiescent current, several ground connections, timer pin, and control the ON pin. Input, output and return voltages are provided on banana jacks.