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LTC2956-Slide6

In an active system, where a microcontroller or FPGA is present, the system can toggle the LTC2956’s SLEEP pin to terminate the Awake state immediately after it has completed its periodic task. This keeps the awake time to a minimum and lowers power drain. On this slide, the chart shows the timing diagram of an active system using the LTC2956. When the wake-up time is reached, the LTC2956 enters the Awake state and pulls the EN output high to turn on the system. Additionally, the wake-up timer restarts and the ONMAX timer starts running. When the system has completed its periodic task, the LTC2956 re-enters the Sleep state once the microcontroller or FPGA pulses the SLEEP pin.

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