參數(shù)資料
型號(hào)： TPS23841_07
廠商： Texas Instruments, Inc.
英文描述： HIGH-POWER, WIDE VOLTAGE RANGE, QUAD-PORT ETHERNET POWER SOURCING EQUIPMENT MANAGER
中文描述： 大功率，寬電壓范圍，四端口以太網(wǎng)供電設(shè)備管理器
文件頁(yè)數(shù)： 18/52頁(yè)
文件大?。?/td> 1011K
代理商： TPS23841_07
www.ti.com
Over/Under Voltage Fault
For the TPS23841, port over and undervoltge detection is disabled by default after device POR. This continuous
voltage monitoring feature can subsequently be enabled by writing a logic 1 to bit D2 in the Common Control
register, assuming usage under the direction of a higher level controller, (i.e., usage in semi-auto mode).
TPS23841
SLUS745–NOVEMBER 2006
AUTO MODE FUNCTIONAL DESCRIPTION (continued)
Over/under voltage faults are only processed after port power up has completed (voltage/power ramp to PD is
done). The TPS23841 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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS23841PAP 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS23841PAPG4 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS23841PAPR 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS23841PAPRG4 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS23841PJD 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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