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ADP2323ACPZ-R7 数据表(PDF) 18 Page - Analog Devices |
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ADP2323ACPZ-R7 数据表(HTML) 18 Page - Analog Devices |
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18 / 32 page ![]() ADP2323 Data Sheet Rev. A | Page 18 of 32 UNDERVOLTAGE LOCKOUT The undervoltage lockout (UVLO) threshold is 4.2 V with 0.5 V hysteresis to prevent the device from power-on glitches. When the PVIN1 or PVIN2 voltage rises above 4.2 V, Channel 1 or Channel 2 is enabled and the soft start period initiates. When either PVIN1 or PVIN2 drops below 3.7 V, it turns off Channel 1 or Channel 2, respectively. THERMAL SHUTDOWN In the event that the ADP2323 junction temperature exceeds 150°C, the thermal shutdown circuit turns off the regulator. A 15°C hysteresis is included so that the ADP2323 does not recover from thermal shutdown until the on-chip temperature drops below 135°C. Upon recovery, soft start is initiated prior to normal operation. |
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