The TMAG6181-Q1 can enter into low-power mode after the turns counter is enabled. During this mode, the turns counter is active and the wake-up oscillator is used to wake the device at a regular interval, T_sleep. During this mode, the TURNS pin does not send out the PWM information and the input path is disabled. The average current consumption during this mode is denoted by I_LP.

Figure 6-16 shows the sequence to enter and exit low-power mode from active-turns mode. To enter low-power mode, two consecutive pulses are provided on the SLEEP pin. The pulses must be within the range of t_{sleep_pd} as provided in the Specifications section. The timeout between these two consecutive pulses is defined by t_{sleep_timeout} in the Specifications section. To exit low-power mode, the part monitors for a rising edge on the SLEEP pin. This can be provided by driving the SLEEP at a pulse width identical to the one used to enter low-power mode.

During low-power mode, an internal wake-up oscillator is used to wake the device up at regular intervals to monitor the states of the Hall sensors. During low-power mode, the rotation tracking feature is enabled to track rotations up to 8krpm at a very low power consumption. The period between two consecutive wake-up intervals is dependent on the frequency of the applied magnetic field (see Rotation Tracking).