SLVUBH1 September 2018
When all the LED outputs are inactive, the LP50xx device is able to enter power-save mode automatically, thus lowering idle-current consumption down to 10 μA (typical). The automatic power-save mode is enabled when register bit Power_Save_EN = 1 (default) and all the LEDs are off for a duration of >30 ms. Almost all analog blocks are powered down in power-save mode. If any I2C command to the device occurs, the LP50xx device returns to the NORMAL mode. Set the Power Saver switch to activate the function (see Figure 8).
Figure 9. LP50xx Global Setting