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AS3630 датащи(PDF) 38 Page - ams AG |
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AS3630 датащи(HTML) 38 Page - ams AG |
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38 / 72 page ![]() AS3630 – 38 8A Supercap Flash Driver Supply Undervoltage Protection If the voltage on the pin VIN (=battery voltage) is or falls below VUVLO, the AS3630 is kept in shutdown state and all registers are set to their default state. Interrupt Output INT is an open drain, active low output. The internal circuit to control this pin is shown in Figure 35. Figure AS3630 – 35: Interrupts Processing Once an interrupt event occurs (e.g. end of charge of Supercap; detailed description of interrupt events in “AS3630 Torch Operation with Duration Synchronized to STROBE Input ” on page 35, the interrupt flip flop is set (register status_eoc=1). If the interrupt mask is high (register status_eoc_mask=1), the output INT is pulled to low signalizing an interrupt condition. All 8 interrupt flip flops are automatically cleared upon readout of register Fault / Status. ADC The ADC is programmed by setting the ADC channel in register ADC_channel (page 52) and the ADC conversion is performed after setting ADC_convert (page 52). The actual timing when the ADC conversion is started / finished is programmed with ADC_convert as shown in Figure 36: !"#" $ # # !" |
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