5

PS12

Oscillograms

The figures of typical waveforms are organized in the following way:

Figure

Function

Description

1, 2, 3, 4

PS (A, B, C, D)

Power-up and power-down delays. Delay times around 5ms and 200ms.

5, 6

ON, PUD, PS (A, B, D)

ON pin detail. Fig.6. shows a power-down / power-up sequence.

7, 8

PUD, PS (A, B)

PUD pin detail; PSA is asserted when voltage at PUD pin about 1.2V.

PUD pin resets when PSB is deasserted.

9

OV, PUD, PS (A, B)

OV pin detail. Overvoltage returns to voltage window.

10

ON, PS (A, B, C)

Partial power-up sequence. Power-down triggered by loss of valid ON.

Fig.1

Fig.2

Fig.3

Fig.4