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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ADP1055ACPZ-R7 데이터시트(PDF) 18 Page - Analog Devices |
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ADP1055ACPZ-R7 데이터시트(HTML) 18 Page - Analog Devices |
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18 / 140 page  ADP1055 Data Sheet Rev. A | Page 18 of 140 VDD/VCORE OVLO The ADP1055 has built-in overvoltage protection (OVP) on its supply rails. When the VDD or VCORE voltage rises above the OVLO threshold, the response can be programmed using Register 0xFE4D. It is recommended that when a VDD/VCORE OVP fault occurs, the response be set to download the EEPROM before restarting the ADP1055. All features related to the OVLO function—such as debounce, fault ignore, and download EEPROM upon receiving a fault condition—are programmable using Register 0xFE4D[7:4]. VDD overvoltage is ignored when the device is downloading information from the EEPROM, even if the overvoltage occurs during the initial power-up or due to the setting of Register 0xFE4D[6]. VDD overvoltage is recognized as a fault only after the EEPROM download is complete. The ADP1055 has a 4 ms idle time after an EEPROM download. If the VDD overvoltage occurs during the ramp-up of VDD and the ADP1055 has not initiated the EEPROM download, the device responds according to the default setting of Bit 7 in Register 0xFE4D, which is to ignore VDD OV. |
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