The TLE9185QX can be woken up upon an edge of the WK4 pin if the wake-up source is enabled before going to Sleep Mode. The Wake-up sequence is described below:
1) TLE9185QX wakes up and goes to Restart Mode
The 5V microcontroller must pull
the pin WK4 up to a voltage V > VWKx_th,r
RSTN pin monitor for t ≥ (tRD1 or tRD2)
Enable WK4 while in Normal mode
(WK_EN = 01B with WK_BNK = 011B)
Keep the WK4 pin low (external pull-down to GND)
2) Microcontroller sends the device to Sleep Mode
3) RSTN pin monitor for t ≥ (tRD1 or tRD2)
4) The 5V microcontroller must pull
the pin WK4 up to a voltage V > VWKx_th,r
5) TLE9185QX wakes up and goes to Restart Mode
