USA: Texas Instruments Inc. (TI) has 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. .
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.
Wednesday, April 27, 2011
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