STAP16DPPS05(2015) 데이터 시트보기 (PDF) - STMicroelectronics

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STAP16DPPS05
(Rev.:2015)

Low voltage 16-bit constant current LED sink driver with output error detection and auto power-saving for automotive applications

STMicroelectronics 

Error detection mode functionality

7

Error detection mode functionality

STAP16DPPS05

7.1

Phase one: entering error detection mode

From the “normal mode” condition the device can switch to “error mode” by a logic

sequence on the OE/DM2 and LE/DM1 pins, as shown in the following table and diagram:

Table 13. Entering error detection mode - truth table

CLK

1°

2°

3°

4°

5°

OE/DM2

H

L

H

H

H

LE/DM1

L

L

L

H

L

Figure 18. Entering error detection mode - timing diagram

CLK

OE/DM2

LE/DM1

AM13668v1

After these five CLK cycles, the device goes into the “error detection mode” and at the 6th

rising edge of the CLK, the SDI data are ready for sampling.

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DocID024306 Rev 6

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