Auto power-saving

STP16CPPS05

18/31

DocID16536 Rev 4

7

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 18: Auto power-saving feature

Electrical conditions:

Temp. = 25 °C, Vdd = 3.3

V, Vin = Vdd, Vled = 3.0 V, RL = 60 Ω, CL = 10 pF

Ch1 (Yellow) = OE , Ch2 (Blue) = CLK, Ch3 (Purple) = LE, Ch4 (Green) = idd

Idd consumption:

Idd (normal operation) = 4.2 mA

Idd (shut down condition) = 190 μA