电源保护开关与控制器
为您的电源路径提供可靠的保护和多路复用
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我们的输入电源保护产品系列提供品类齐全的集成式 IC 和外部 FET 控制器，用来保护电源路径。电子保险丝和热插拔控制器提供可扩展解决方案，适用于过压、短路和浪涌电流控制。理想二极管控制器和精选电子保险丝可提供反向电流和反极性事件保护。集成式电源多路复用器及其他反向电流阻断解决方案可在切换事件期间保护电源路径。无论是针对企业数据中心、汽车 ADAS、工业控制系统、还是 PC 和个人电子产品，TI 都有一款保护解决方案适合您的电源路径。
相关类别
负载开关
高侧开关和控制器
USB 电源开关和充电端口控制器
为何选择 TI 为您提供电源路径保护？
更大的提高功率密度
低 Ron 和小封装尺寸实现了功耗极低的高密度系统。
节省空间
在紧凑封装中进行高度功能集成，不但缩小了电路板尺寸，而且精简了设计。
可扩展的解决方案
品类丰富的集成式 FET 和外部 FET 解决方案可优化系统中的每条电源路径。
全面保护
包含品类丰富的功能，从标准过热和过压保护到可编程监控和诊断不一而足。
了解特色应用
Design reliable and scalable server power systems
With the growth of AI and cloud computing, server power and reliability needs increase exponentially. With our feature-rich eFuses and hot-swap controllers, you can design reliable server power systems at higher power levels. eFuses and hot-swap controllers also protect data from power transients in vital memory systems, and are available in space-conscious and power-efficient packages.
Benefits:
- High power density
- Comprehensive protections during overvoltage, overcurrent and overtemperature events
- Wide voltage range and PMBus options for more tailored solutions
特色资源
Design power-dense, comprehensive battery input protection
Due to the increase in processing power in electronic control units (ECU), traditional protection solutions such as Schottky diodes and P-channel field-effect transistors (FETs) are no longer as viable. Our ideal diodes protect downstream devices and systems with high system efficiency, improved thermal management and a very small solution size.
Benefits:
- Reverse polarity and current protection, inrush current control, and overcurrent and short-circuit protection
- Small, power-dense packaging
- Internal or external FET options
特色资源
- TIDA-050071 – 用于 ADAS 和信息娱乐系统应用的无电池处理器电源参考设计
- TIDA-01323 – 具有四路 4Gbps FPD-Link III、双路 CSI-2 输出和 PoC 的 ADAS 多传感器集线器参考设计
- TIDA-01005 – 适用于四摄像头集线器且具有 MIPI CSI-2 输出的汽车 ADAS 参考设计
- LM74910-Q1 – 具有断路器、200kHz ACS 以及欠压和过压保护功能的汽车类理想二极管
- LM74700-Q1 – 3.2V 至 65V、80uA IQ 汽车理想二极管控制器
- LM74202-Q1 – 具有集成 FET 的 4.2V 至 40V、2.2A 300uA IQ 汽车理想二极管
- 使用 LM749x0-Q1 解决汽车电池反向保护拓扑问题 – 应用手册
Create customized solutions for field and backplane power systems
Simplify your input protection designs using highly integrated TI eFuses with flexible protection thresholds. Protect against reverse current and reverse polarity events with ideal diode controllers or back-to-back FET eFuses. For low-voltage systems with two inputs, power muxes help acheive seamless switchover.
Benefits:
- Design flexibility from adjustable slew rate, overvoltage and overcurrent protection and selectable fault responses.
- Reduce system downtime with integrated fault diagnostics and accurate current monitoring.
- Decrease system size with compact footprints.
特色资源
- TPS2663 – 具有输出功率限制和浪涌保护功能的 4.5V 至 60V、31mΩ、0.6A 至 6A 电子保险丝
- LM74700-Q1 – 3.2V 至 65V、80uA IQ 汽车理想二极管控制器
- TPS2121 – 支持无缝切换的 2.7V 至 22V、56mΩ、4.5A 电源多路复用器
- 简化 PLC 系统中的 EFT、浪涌和电源故障保护电路 (Rev. D) – 应用手册
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Improve efficiency and provide automatic power switchover in smart building applications
Automated climate control, security and lighting solutions continue to grow sharply in homes and workspaces. TI power muxes provide small, low-power solutions to transition between power sources. Ideal diode controllers protect against miswiring during installation and ideal diode bridge rectifiers improve efficiency in 24VAC and 48V power-over-ethernet (PoE) systems.
Benefits:
- Low quiescent current and small packages to increase battery life and reduce size
- Automatic switchover to reduce system complexity
- Ideal diode bridge solutions for decreasing power losses versus Schottky bridges
特色资源
Design versatile PC power supplies that address consumer needs
Our input protection portfolio prioritize two key aspects of PC power-supply designs: small form factors and protection against transient events. TI eFuses protect your designs without sacrificing size. For seamless switchover between battery and USB charging, TI power muxes offer protection and low leakage in small packages.
Benefits:
- Wide voltage ranges and protections against overcurrent, overvoltage and reverse current.
- Compact packaging, with options smaller than 5 mm2.
- Low quiescent currents for increased battery life.
特色资源
设计和开发资源
适用于 48V 人工智能服务器的 8kW 热插拔参考设计
随着人工智能 (AI) 和机器学习 (ML) 的进步，企业服务器已发展为能耗密集型服务器，因为这些服务器同时处理大量数据和存储。每个服务器主板的稳态额定功率高达 5kW 至 6kW，而通用服务器的额定功率为 1kW 至 2kW。但是，外形尺寸保持不变，因此随着功率密度的增加，系统设计面临着诸多挑战。与通用服务器相比，AI 服务器上瞬态负载的负载幅度、压摆率和频率增加了三到四倍。基于这些要求，此参考设计在开发时采用 LM5066I 热插拔控制器，可在标称输入电压为 54V 的高功率服务器背板系统中提供稳健可靠的输入电源路径保护设计。
用于 ADAS 和信息娱乐系统应用的无电池处理器电源参考设计
适用于备用电源的无缝切换参考设计
TIDA-01638 参考设计展示了采用冗余电源的电源多路复用。如果一个电源出现故障，系统需要切换到备用电源，并向下游负载提供不间断电源。因此、冗余电源可确保当一个电源出现故障时，系统可自动切换到另一电源轨，从而防止数据丢失。