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BTS7020-2EPA Datenblatt(PDF) 16 Page - Infineon Technologies AG |
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BTS7020-2EPA Datenblatt(HTML) 16 Page - Infineon Technologies AG |
16 / 58 page Data Sheet 16 Rev. 1.00 2017-08-24 BTS7020-2EPA PROFETTM+2 Power Supply 6 Power Supply The BTS7020-2EPA is supplied by VS, which is used for the internal logic as well as supply for the power output stages. VS has an undervoltage detection circuit, which prevents the activation of the power output stages and diagnosis in case the applied voltage is below the undervoltage threshold. 6.1 Operation Modes BTS7020-2EPA has the following operation modes: •Sleep mode •Active mode •Stand-by mode The transition between operation modes is determined according to these variables: • logic level at INn pins • logic level at DEN pin The state diagram including the possible transitions is shown in Figure 13. The behavior of BTS7020-2EPA as well as some parameters may change in dependence from the operation mode of the device. Furthermore, due to the undervoltage detection circuitry which monitors VS supply voltage, some changes within the same operation mode can be seen accordingly. There are three parameters describing each operation mode of BTS7020-2EPA: • status of the output channel • status of the diagnosis • current consumption at VS pin (measured by IVS in Sleep mode, IGND in all other operative modes) Table 8 shows the correlation between operation modes, VS supply voltage, and the state of the most important functions (channel status, diagnosis). Figure 13 Operation Mode State Diagram PowerSupply_OpMode_PROFET.emf Sleep Active IN = „high“ IN = „low“ & DEN = „high“ Stand-by IN = „low“ & DEN = „low“ Power-up IN = „low“ & DEN = „high“ IN = „low“ & DEN = „low“ VS > VS(OP) Unsupplied IN = „high“ DEN = „high“ DEN = „low“ |
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