Date: 26/10/2010
TI introduces two new hotswap devices
Texas Instruments Incorporated (TI) has released the TPS2480 controller, a protection device that is designed to minimize in-rush current and protect the load and the FET from over-current or short circuit events. The device integrate hot-swap control and precise digital current monitoring. The controller enables accurate measurement of power usage and also provides accurate over temperature. A system designer can generate a detailed history of system performance, anticipate failures and implement advanced system power health monitoring.
The TPS2480 controller 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 information on their operating status.
The key features of TPS2480:
--Input voltage range: 9 V to 20 V.
--Flexible design: dynamic calibration, programmable FET power limit and fault timer.
--I2C monitoring of current, voltage and power.
--High-accuracy current monitoring (one percent over temperature).
TI has also released the TPS2492 high-voltage, power-limiting hot-swap controller for protection against voltage surges using an analog output signal for current monitoring. The controller provides transient immunity, rated up to 80 volts, and filters out nuisance faults with a settable timer. It is also provided with a programmable overvoltage protection.
The key features of TPS2492:
--Transient protection: 9-V to 80-V input voltage range (100-V tolerant).
--Programmable FET power limit, load current limit and fault timer.
--Monitoring and protection: Load current monitor, Power Good and fault outputs.
Package:
TPS2480: 20-pin, 6.4-mm x 6.6-mm TSSOP
TPS2492: 14-pin, 6.4-mm x 6.6-mm TSSOP
Price:
TPS2480: Suggested resale pricing is US$3.00 for 1K pieces.
TPS2492: Suggested resale pricing is US$1.45 for 1Kpieces.
Availability: Now