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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DA9131 датащи(PDF) 21 Page - Dialog Semiconductor |
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DA9131 датащи(HTML) 21 Page - Dialog Semiconductor |
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21 / 56 page  DA9131 High-Performance, Dual-Channel DC-DC Converter for Mobile and Portable Applications Datasheet Revision 2.0 11-Aug-2021 CFR0011-120-00 21 of 56 © 2021 Dialog Semiconductor 4.1.7 Thermal Protection DA9131 is protected from internal overheating by thermal shutdown. There are two kinds of flags concerning thermal protection, thermal warning and thermal critical. The warning flag is asserted when TJ > TWARN and the critical flag is asserted when TJ > TCRIT. When the critical flag is asserted, Buck1 and Buck2 are shut down immediately. Table 12: Thermal Protection Control Registers Category Register Name Description Status TEMP_WARN Asserted as long as the thermal warning threshold is reached TEMP_CRIT Asserted as long as the thermal shutdown threshold is reached IRQ event E_TEMP_WARN TEMP_WARN caused event E_TEMP_CRIT TEMP_CRIT caused event IRQ mask M_TEMP_WARN TEMP_WARN event IRQ mask M_TEMP_CRIT TEMP_CRIT event IRQ mask M_VR_HOT TEMP_WARN status IRQ mask Figure 10: Thermal Protection Operation 4.2 Internal Circuits 4.2.1 IC_EN/Chip Enable/Disable IC_EN is chip enable/disable control input. When IC_EN = 0, all blocks except for low IQ POR are powered-down and buck output is pulled-down. 4.2.2 nIRQ/Interrupt The interrupt triggers events. Trigger conditions and control registers for each interrupt event are listed in Table 13. Warning Flag TCRIT Junction Temperature TWARN Critical Flag IRQ IRQ Buck1 and Buck2 Shutdown Buck Enable I2C Bus Write 1 to CH<x>_EN |
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