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參數(shù)資料
| 型號(hào)： | TPS2384PJDG4 |
| 廠(chǎng)商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 電源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
| 封裝： | GREEN, PLASTIC, HTQFP-64 |
| 文件頁(yè)數(shù)： | 9/50頁(yè) |
| 文件大小： | 1402K |
| 代理商： | TPS2384PJDG4 |
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Over/Under Voltage Fault
SLUS634D – NOVEMBER 2004 – REVISED MARCH 2007
AUTO MODE FUNCTIONAL DESCRIPTION (continued)
Over/under voltage faults are only processed after port powerup has completed (voltage/power ramp to PD is
done). The TPS2384 measures the voltage between the P and N pin and if this voltage drops below the under
voltage threshold (typically 43 V) or increases above the over voltage threshold (typically 55 V) the voltage timer
is turned on. When the voltage timer reaches its time-out limit that is set between 2 ms to 5 ms the
corresponding port is turned off and the UV/OV fault code generated in the Port Status 1 register. If the
over/under voltage condition is removed prior to the voltage timer reaching its limit the timer is reset and waits
for the next event. Figure 6 shows a voltage fault lasting for more then 2 ms that has caused the port to
shutdown.
Figure 6.
17
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