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L9912 Datasheet(PDF) 41 Page - STMicroelectronics

Part # L9912
Description  Automotive vehicle conform car alternator regulator IC
PDF  84 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9912 Datasheet(HTML) 41 Page - STMicroelectronics

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DocID029639 Rev 2
41/84
L9912
Electrical specifications
83
5.3.16
Pin "RC"
Figure 17. RC pin connection on alternator
Figure 18. Squared signal
The RC pin is a protocol input to be used for both PCM and C-Term protocols; both external
component RCpu and the Vpu supply voltage must be chosen depending on the addressed
protocol. In addition RC allows to hardware select, along with PROT_SEL pin, one among
possible protocols that can be managed by regulator.



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