Texas Instruments introduces 18-V hot-swap controller with high efficiency and accuracy

High-efficiency controller in 3-mm x 3-mm QFN protects server and telecom equipment

Bangalore (April 27, 2011) –Texas Instruments Incorporated (TI) today introduced the industry’s smallest 18-V hot-swap controller with power limiting that protects server and telecom equipment from over-current, over-voltage or short circuit events. The TPS24720 controller with programmable FET safe operating area (SOA) protection comes in a 3-mm x 3-mm standard QFN package, increases system reliability and simplifies hot-swap design. For samples, modeling tool and evaluation module visit: www.ti.com/tps27420-pr.     

Power protection with current monitoring

The controller minimizes in-rush current and protects the load and the FET from potentially damaging transients. The TPS24720’s programmable current limiting feature allows it to control an external N-channel MOSFET and provide accurate current monitoring. In addition when programmed to a 25-mV current limit threshold, there is a 50-percent reduction in sense resistor power loss compared to competitive devices with the same accuracy. The TPS24720’s analog current monitor can provide real-time current data to ultra-low-power MSP430™ microcontrollers and TI’s UCD9081 power supply sequencer to monitor overall system operation.

Key features and benefits of TPS24720:

• Wide input voltage range: 2.5 V to 18 V. 
• Flexible design: programmable FET SOA power limit and fault timer.
• Programmable current gain allows designer to balance efficiency and accuracy.
• Accurate current monitoring.

Find out more about TI’s hot-swap and power distribution portfolio by visiting the following:

• Hot-swap controllers and protection circuits: www.ti.com/protectioncircuitry 
• TI E2E™ Community to ask questions and help solve problems with fellow engineers: www.ti.com/powerforum-pr.

About Texas Instruments

Texas Instruments semiconductor innovations help 80,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at www.ti.com.

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