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AN2946 데이터시트(PDF) 19 Page - STMicroelectronics

부품명 AN2946
상세설명  Solar-LED streetlight controller with 25 W LED lamp driver
PDF  38 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2946 데이터시트(HTML) 19 Page - STMicroelectronics

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AN2946
Hardware design
Doc ID 15473 Rev 2
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Figure 21.
Vds on Q2, current on L2, and Vak on D4
3.2.2
LED driver
The LED driver provides the LED lamp with constant current for different battery and lamp
voltages. The LED currents are shown in Figure 22 and 23.
Figure 22.
LED lamp current, efficiency vs. battery voltage
Figure 19.
Charger input current (Isc)
Figure 20.
Charger output current (Iba)



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