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TLE9250VLE датащи(PDF) 12 Page - Infineon Technologies AG |
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TLE9250VLE датащи(HTML) 12 Page - Infineon Technologies AG |
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12 / 28 page ![]() Data Sheet 12 Rev. 1.0 2017-08-09 HS CAN Transceiver High Speed CAN Transceiver Changing the mode of operation 6.2 Mode change by the NEN pin When the TLE9250V is supplied with the digital voltage VIO the internal logic works and mode change by the mode selection pin NEN is possible. By default the NEN input pin is logical “high” due to the internal pull-up current source to VIO. Changing the NEN input pin to logical “low” in Power-save mode triggers a mode change to Normal-operating mode (see Figure 7). To enter Normal-operating mode the transmitter supply VCC needs to be available. Power-save mode can be entered from Normal-operating mode and from Forced-receive-only mode by setting the NEN pin to logical “high”. Entering Forced-receive-only mode from Power-save mode is not possible by the NEN pin. The device remains in Power-save mode independently of the VCC supply voltage. Figure 7 Mode selection by the NEN pin NEN VCC VIO Power-down state “X” “X” “off” Normal-operating mode NEN VCC VIO 0 “on” “on” Forced- receive-only mode NEN VCC VIO 0 “off” “on” Power-save mode NEN VCC VIO 1 “X” “on” VCC “X” NEN “1” VCC “X” NEN “1” VCC “on” NEN “0” |
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