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L9396 数据表(PDF) 22 Page - STMicroelectronics |
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L9396 数据表(HTML) 22 Page - STMicroelectronics |
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22 / 109 page  Power supply L9396 22/109 DS12539 Rev 6 The device returns to normal operation with full functionality as soon as the POR is released. 3.4 Wake-up input The input pin IGN can be used as a wake up source connection. In case the voltage on IGN pin raises above WAKEhigh_th for an interval longer than WAKEflt_up, the device wakes up. The device moves to sleep in case IGN falls below WAKEhigh_th - WAKEhys for an interval longer than WAKEflt_down. This input can be connected to ignition battery switches or transceiver inhibit outputs. A filter time is implemented to reject spurious glitches. The filter time is started when the input signal exceeds the specified threshold. All electrical characteristics are valid for the following conditions unless otherwise noted: -40 °C ≤ Tj ≤ +175 °C; 4.5 V ≤ VBATP ≤ 19 V. Table 7. Internal supply electrical characteristics Symbol Parameter Conditions Min Typ Max Unit GNDDOPEN GNDD threshold GNDx = 0 180 300 420 mV TFLT_ GNDD_OPEN GNDD Open deglitch filter time -- 10 - µs GNDBSTOPEN GNDBST threshold GNDx=0 200 300 400 mV GNDBSTPU GNDBST pull-up current Boost OFF 50 - 200 µA TFLT_ GNDBST_OPEN GNDBST Open deglitch filter time -7.5 - 11 µs VDD VDD Output Voltage - 3.15 3.3 3.4 V VDDOV VDD Over-voltage threshold -3.47 - 3.7 V VDDUV VDD Under-voltage threshold - 2.7 - 2.9 V TFLT_ VDD_OV_UV VDD Over-voltage / Under- voltage deglitch filter time -- 10 - µs VINTA VINTA Output Voltage - 3.2 3.3 3.4 V VINTAOV VINTA Over-voltage threshold -3.47 - 3.7 V VINTAUV VINTA Under-voltage threshold - 2.95 - 3.13 V TFLT_ VINTA_OV_UV VINTA Over-voltage / Under-voltage deglitch filter time -- 10 - µs |
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