Nano timere forøger system 'levetiden'

Texas Instruments lancerer såkaldte nano timere, der kan udvide levetiden batteriforsynede eller energy harvesting systemer (in english).

Texas Instruments (TI) has introduced two programmable system timers that significantly reduce system standby power consumption. The TPL5000 with watchdog timer and TPL5100 with MOS driver draw only 30 nA of current, a reduction of 90 percent compared to competitive solutions.

They also replace a microcontroller’s (MCU’s) internal timer, allowing the MCU to remain in low-power sleep mode. As a result, these programmable devices allow designers to achieve system standby power savings of up to 80 percent over existing solutions.

TI nano timers address a wide range of battery-powered and energy harvesting systems, including smoke alarms, CO alarms, intelligent price tags, occupancy sensors, security cameras, door locks, wireless sensor nodes and data loggers.

In these applications, the main system is in sleep mode or power-down mode most of the time, which makes the power consumption of the MCU internal timer significant. By drawing much lower current than an MCU timer, the TPL5000 and TPL5100 greatly reduce power consumption and extend the operating life of these systems.
www.ti.com/tpl5000-pr-eu.