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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L99LDLH32 датащи(PDF) 16 Page - STMicroelectronics |
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L99LDLH32 датащи(HTML) 16 Page - STMicroelectronics |
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16 / 141 page  Device supply concept L99LDLH32 16/141 DS12879 Rev 5 3 Device supply concept The L99LDLH32 IC is supplied through VS pin, connected to the car battery through an external diode for reverse polarity protection or to an external pre-regulator. The supply voltage is in the range of [VS_MIN÷40] V, avoiding any additional load dump protection on power supply stage. On top of that, no device reset will occur in the supply voltage range of [3÷VS_MIN] V – to keep digital content during cold cranking pulse. In that range – [3÷VS_MIN] V - and till POR threshold (V3V3_POR_H) is not reached, full device protection is granted and digital part (register content and state machine) is kept alive. An under-voltage threshold (VS_UV) is implemented to avoid wrong output current due to low battery and, till device leaves the voltage range between under-voltage VS_UV and under- voltage reset VS_UV_RST some parameters may deviate versus specified value. |
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