DocID15817 Rev 3

23/35

STP16DPPS05

Error detection mode functionality

35

7.5

Auto power-saving

The auto power-saving feature minimizes the quiescent current if no active data is detected

on the latches and auto powers-up the device as the first active data is latched.

Figure 24. Auto power-saving feature

Conditions:

Temp. = 25 °C, Vdd = 3.3 V, Vin = Vdd, VLed = 3.0 V, Iset = 20 mA

Ch1 (Yellow) = CLK, Ch2 (Blue) = SDI, Ch3 (Purple) = LE/DM1, Ch4 (Green) = IDD

Idd consumption:

Idd (normal operation) = 2.93 mA

Idd (shutdown condition) = 170 µA