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TPL5010/TPL5010-Q1 Nano-Power System Timers Texas Instruments TPL5010/TPL5010-Q1 Nano-Power System Timers are low-power timers with a watchdog feature ideal for system wake up in duty-cycled or battery-powered applications. In such systems the µC timer can be used for system wake-up, but if the timer sleep current is high, up to 60-80% of the total system current can be consumed by the µC timer in this sleep mode. Consuming only 35nA, the TPL5010/TPL5010-Q1 can replace the functionality of the integrated μC timer and allow the µC to be placed in a much lower power mode. Such power savings enable the use of significantly smaller batteries making it well suited for energy harvesting or wireless sensor applications.