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AN2946 Datasheet(PDF) 27 Page - STMicroelectronics

Part # AN2946
Description  Solar-LED streetlight controller with 25 W LED lamp driver
PDF  38 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2946 Datasheet(HTML) 27 Page - STMicroelectronics

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AN2946
Firmware design
Doc ID 15473 Rev 2
27/38
Figure 35.
LED light-on routine
4.4
System monitoring management
The system monitoring routine is executed at the beginning of every loop. It checks if
voltage, current or temperature is abnormal or not. A corresponding protective action is
implemented and 'ErrorFlag' is set if any error occurs. The controller maintains the
protective action until 'ErrorFlag' is cleared by the system recovery routine. The flowchart is
shown in Figure 36.
Figure 36.
System monitoring flowchart



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