STAP16DPS05 datasheet(21/34 Pages) STMICROELECTRONICS

No. de pieza	STAP16DPS05

Descripción Electrónicos	Low voltage 16-bit constant current LED sink driver

PDF	34 Pages

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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DocID024315 Rev 6

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STAP16DPS05

Detection mode functionality

7.3

Phase three: “resuming to normal mode”

The sequence for re-entering in normal mode is shown in the following table and diagram:

Note:

For proper device operation the “entering in detection” sequence must be followed by a

“resume mode” sequence, it is not possible to insert consecutive equal sequences.

7.4

Error detection conditions

VDD = 3.3 to 5 V temperature range -40 to 125 °C

Note:

Where: IO = the output current programmed by the REXT, IODEC = the detected output

current in detection mode.

Figure 17. Resuming to normal mode timing diagram

CLK

1°2°3°4°5°

OE/DM2

HHH

LE/DM1

LLLLL

Table 13. Detection conditions

Configuration

Detection mode

Detection results

SW-1 or SW-3b

Open line or output

short to GND detected

==> IODEC ≤ 0.5 x IO

No error

detected

==> IODEC ≥ 0.5 x IO

SW-2 or SW-3a

Short on LED or short

to V-LED detected

==> VO ≥ 2.4 V

No error

detected

==> VO ≤ 2.2 V

STAP16DPS05 Datasheet(PDF) 21 Page - STMicroelectronics

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