Datasheet

STP16DPPS05 Error detection mode functionality
Doc ID 15817 Rev 2 21/34
7.3 Phase three: resuming normal mode
The sequence for reentering normal mode is shown in the following table:
Note: For proper device operation, the “entering error detection” sequence must be followed by a
“resume mode” sequence, it is not possible to insert consecutive equal sequences.
7.4 Error detection conditions
Note: Where: I
O
= the output current programmed by the R-EXT, I
ODEC
= the detected output
current in detection mode
Figure 22. Detection circuit
Figure 21. Resuming normal mode - timing diagram
CLK1°2°3°4°5°
OE/DM2
HLHHH
LE/DM1 LLLLL
Table 14. Detection conditions (V
DD
= 3.3 to 5 V, temperature range -40 to 125 °C)
Configuration Detect mode Detection results
SW-1 or
SW-3b
Open line or output
short to GND detected
==> I
ODEC
≤ 0.5 x I
O
No error
detected
==> I
ODEC
≥ 0.5 x I
O
SW-2 or
SW-3a
Short on LED or short
to V-LED detected
==> V
O
≥ 2.6 V
No error
detected
==> V
O
≤ 2.3 V
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STP16DPPS05