參數(shù)資料
型號: STP08CDC596MTR
廠商: 意法半導體
英文描述: 8-BIT CONSTANT CURRENT LED SINK DRIVER WITH FULL OUTPUT DETECTION
中文描述: 8位恒流LED全輸出與接收器驅動檢測
文件頁數(shù): 10/20頁
文件大?。?/td> 376K
代理商: STP08CDC596MTR
STP08CDC596
10/20
The LEDs status will be detected al least in 2
microseconds and after this time the micro
controller puts OE in HIGH state and the output
data detection result will go to the microprocessor
via SDO.
The detection data format is the same of data in
normal mode. As soon as all the detection data
bits are available on the serial line, the device may
go back to normal mode operation.
CONDITIONS IN ORDER TO GET A SUCCESSFULLY DETECTION CONDITION
Table 10: Detection Condition
(V
DD
= 3.3 to 5 V Temp. Range -40 to 85°C)
where: I
O
= the output current programmed by the R
EXT,
I
ODEC
= the detected output current in detection mode.
Figure 15: Detection Mode
SW-1 or SW-3b
Open Line or Output Short
to GND detected
Short on LED or Short to
V-LED detected
==> I
ODEC
0.5 x I
O
No error detected
==> I
ODEC
0.5 x I
O
SW-2 or SW-3a
==> V
O
2.4 V
No error detected
==> V
O
2.2 V
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