Texas Instruments Inc. is offering a protection device that integrates hot-swap control and precise digital current monitoring. The TPS2480 controller measures 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.
TI also introduced the TPS2492 high-voltage, power-limiting hot-swap controller to support designers who want increased protection against voltage surges using an analog output signal for current monitoring. The controller provides high 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.
Key features of TPS2480:
- Wide 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)
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
Pricing and availability:
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.
Datasheets: TPS2480 and TPS2492