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Power protection controllers combine hot swap, digital monitoring

Posted: 27 Oct 2010 ?? ?Print Version ?Bookmark and Share

Keywords:I2C? current? voltage? MOSFET?

Texas Instruments Inc. (TI) has launched the TPS2480, which it describes as a highly integrated protection device featuring hot-swap control and precise digital current monitoring.

TI said the TPS2480, which features I2C monitoring of current, voltage and power, is designed to minimize in-rush current and protect the load and the FET from over-current or short circuit. It is used to control an external N-channel MOSFET switch.

Precise information on the operating status of telecommunications equipment, enterprise networking products, automation control systems and medical equipment can be monitored and communicated, allowing action to be taken during critical situations. It has a wide input voltage range of 9V to 20V, dynamic calibration, and high-accuracy current monitoring of one percent over temperature.

Another device TI introduced is the TPS2492, a high-voltage, power-limiting hot-swap controller for increased protection against voltage surges using an analog output signal for current monitoring. TI said it offers excellent transient immunity, rated up to 80V; nuisance fault filtering using a settable timer; and a programmable over voltage protection threshold.

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