Power protection switches & controllers
Reliably protect and multiplex your power paths
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Our input power protection portfolio offers a comprehensive selection of integrated ICs and external-FET controllers for protecting power paths. eFuses and hot-swap controllers provide scalable solutions for overvoltage, short-circuit and inrush current control. Ideal diode controllers and select eFuses protect against reverse current and reverse polarity events. Integrated power muxes, along with other reverse current blocking solutions, protect power paths during switchover events. Whether for enterprise data centers, automotive ADAS, industrial control systems, or PCs and personal electronics, TI has a protection solution for your power path.
Related categories
Load switches
High-side switches & controllers
USB power switches & charging port controllers
Why choose TI for your power path protection?
Improved power density
Low Ron and small package sizes enable high-density systems with minimized power dissipation.
Space savings
High feature integration in compact packages enable smaller board sizes and simpler designs.
Scalable solutions
Broad selection of integrated-FET and external-FET solutions allow optimization of each power path in a system.
Comprehensive protections
Includes wide-ranging features from standard overtemperature and overvoltage protection to programmable monitoring and diagnostics.
Technical resources
Basics of eFuses (Rev. A)
Basics of Ideal Diodes (Rev. B)
11 Ways to Protect Your Power Path
Discover featured applications
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.
Featured resources
- PMP23496 – 8kW hot-swap reference design for 48V artificial intelligence servers
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.
Featured resources
- TIDA-050071 – Off-battery processor power reference design for ADAS and infotainment applications
- TIDA-01323 – ADAS multi-sensor hub reference design with quad 4-Gbps FPD-Link III, dual CSI-2 output, and PoC
- TIDA-01005 – Automotive ADAS Reference Design for Four Camera Hub with MIPI CSI-2 Output
- LM74910-Q1 – Automotive ideal diode with circuit breaker, 200-kHz ACS and under- and overvoltage protection
- LM74700-Q1 – 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller
- LM74202-Q1 – 4.2-V to 40-V, 2.2A 300uA IQ automotive ideal diode with Integrated FET
- Addressing Automotive Reverse Battery Protection Topologies with LM749x0-Q1 – Application note
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.
Featured resources
- TPS2663 – 4.5-V to 60-V, 31mΩ, 0.6-6A eFuse with output power limiting and surge protection
- LM74700-Q1 – 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller
- TPS2121 – 2.7-V to 22-V, 56-mΩ, 4.5-A, power mux with seamless switchover
- Simplifying EFT, Surge and Power-Fail Protection Circuits in PLC Systems (Rev. D) – Application note
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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.
Featured resources
- Achieve Power Efficiency in Building Automation Applications with the TPS2116 – Application brief
- Achieve Low Loss Rectification Using TI's Diode Bridge Controllers – Application brief
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.
Featured resources
- TIDA-01638 – Seamless switchover for backup power reference design
- TIDA-03030 – USB Type-C™ Power-Path Protection With Audio Accessory Support Reference Design
- USB Type-C™ power: Should your next device have USB Type-C? – Technical article
High-reliability power management for data center switches
As the power demands driven by AI infrastructure increase, data center network switches demand reliable power protection and precise control to maintain system uptime, scalability, and efficient distribution across line cards and control subsystems.
Benefits of 48V eFuses and hot-swap controllers:
- Input power protection features maintain stable operation
- Fault isolation protects infrastucture by containing electrical faults at the circuit level and preventing cascading failures
- System-level telemetry provides real-time visibility into system conditions, greatly reducing troubleshooting time
Featured resources
- PMP23496 – 8kW hot-swap reference design for 48V artificial intelligence servers
- TPS1689EVM – TPS1689 evaluation module
- TPS1685EVM – TPS1685 evaluation module
- LM5066H1EVM – LM5066H1 evaluation module
Design & development resources
8kW hot-swap reference design for 48V artificial intelligence servers
With the advancements in artificial intelligence (AI) and machine learning (ML), enterprise servers have become power-intensive as these servers simultaneously process a large amount of data and storage. The steady-state power rating of each server motherboard has gone up 5kW to 6kW, in contrast to (...)
Off-battery processor power reference design for ADAS and infotainment applications
Seamless switchover for backup power reference design
The TIDA-01638 referencedesign showcases Power MUXing with redundant power. If one power source fails, the system needs to switchover to a backup power source and provide an uninterrupted source of power to downstream loads. Therefore, power redundancy ensures that if one power supply were to fail, (...)
New products
9V-to-80V, 3.5mΩ, 20A stackable eFuse with PMBus® digital telemetry
Approx. price (USD) 1ku | 3.9
5.5V to 90V advanced hot-swap controller with I/V/P monitoring and PMBus™ interface
Approx. price (USD) 1ku | 2.87
Automotive ideal diode with circuit breaker, 200-kHz ACS, UV ,OV protection and SLEEP mode
Approx. price (USD) 1ku | 1.85
9V to 80V, 16mΩ, 10A eFuse with accurate and fast current monitor
Approx. price (USD) 1ku | 1.6