Power Protection ICs Combine Analog Protection with Digital Monitoring

Nov 10, 2010 1:33 PM

Texas Instruments Incorporated introduced a new, highly integrated protection device that integrates hot-swap control and precise digital current monitoring. The TPS2480 controller provides the most accurate measurement of power usage, within one percent accuracy over temperature, allowing system designers to generate a detailed history of system performance, anticipate failures and implement advanced system power health monitoring.

The TPS2480 minimizes in-rush current and protect the load and the FET from over-current or short circuit events. It controls an external N-channel MOSFET switch and provides accurate voltage, current and power monitoring via an I2C interface. This information enables telecommunications equipment, enterprise networking products, automation control systems and medical equipment to communicate precise information on their operating status, take action to respond to critical situations, and extend usable lifetime of deployed equipment.

TI also introduced the new TPS2492 high-voltage, power-limiting hot-swap controller to support designers who desire increased protection against voltage surges using an analog output signal for current monitoring. The controller provides excellent transient immunity, rated up to 80 volts, and filters out nuisance faults with a settable timer. A programmable overvoltage protection threshold also protects loads from unsafe voltage levels.

The TPS2480 is available in volume now from TI and its authorized distributors in a 20-pin, 6.4-mm x 6.6-mm TSSOP package. Suggested resale pricing is $3.00 in 1,000-unit quantities. The TPS2492 is available now in a 14-pin, 6.4-mm x 6.6-mm TSSOP package. Suggested resale pricing is $1.45 in 1,000-unit quantities.

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