參數(shù)資料
型號(hào)： MAX5915
廠商： Maxim Integrated Products, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Dual PCI 2.2 Hot-Swap Controllers
中文描述： 雙路PCI 2.2熱插拔控制器
文件頁(yè)數(shù)： 15/25頁(yè)
文件大小： 657K
代理商： MAX5915
Output Undervoltage
The output voltages on all supplies, except the -12V
supply, are monitored for undervoltage. Output under-
voltage fault management is identical to the output
overcurrent fault management. Figures 5, 6, and 7 can
be used to illustrate undervoltage faults on both the
MAX5915/MAX5916.
Thermal Shutdown Control
The MAX5915/MAX5916 feature internal thermal pro-
tection. Two thresholds detect when the device is over-
heated. If the first threshold is reached, the channel
that is in overcurrent shuts down. If the second thermal
threshold is reached, the entire device shuts down. The
device cannot be restarted until the thermal condition is
cleared. For the MAX5915, the main channels turn back
on after +12VIN or ON_ is toggled. For the MAX5916,
the main channels turn back on after t
RESTART
. The
auxiliary channels for both the MAX5915/MAX5916
restart after t
RESTART
.
PGOOD_ Operation
Both the MAX5915/MAX5916 incorporate a PGOOD_
output to report when power is good to a microproces-
sor or controller. PGOOD_ remains low if the auxiliary
outputs are not powered, for PCI and compact PCI sys-
tems where the 3.3VAUX is not available. Connect
3.3VAUXIN to 3.3VIN and connect AUXON_ to ON_ to
allow PGOOD_ to transition high when the main sup-
plies are available. The open-drain structure of
PGOOD_ requires an external pullup resistor (see the
Functional Diagram
). Figure 8 shows the internal logic
of the PGOOD_ output.
M
Dual PCI 2.2 Hot-Swap Controllers
______________________________________________________________________________________
15
t
DELAY
t
DELAY
t
DELAY
t
RESTART
t
RESTART
ENABLE_+12VIN
STARTUP_+12VIN
OC_3.3VAUXO_
UV_3.3VAUXO_
RESET
RESET
D
Q
V
Q
POSITIVE EDGE
TRIGGERED D FLIP-FLOP,
RESET IS ACTIVE LOW
OC_3.3VO_
OC_5VO_
OC_+12VO_
OC_-12VO_
UV_3.3VO_
UV_5VO_
UV_+12VO_
POSITIVE EDGE TRIGGERED D FLIP-FLOP,
RESET IS ACTIVE LOW
HIGH = MAIN SUPPLIES
ARE TURNED OFF
MAIN ON
AUX OFF
HIGH = AUX SUPPLY
TURNED OFF
ENABLE_3.3VAUXIN
STARTUP_3.3VAUXIN
V = INTERNAL SUPPLY LOGIC
GENERATED BY THE 12VIN OR THE
3.3VAUXIN, WHICHEVER IS HIGHER
RESET
D
Q
V
Q
SEE TABLE 2 FOR EXPLANATION OF SIGNALS.
Figure 3. Main and Auxiliary Supply Shutdown Control Logic for MAX5915
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5915AEUI 功能描述:熱插拔功率分布 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
MAX5915AEUI+ 功能描述:熱插拔功率分布 Dual PCI 2.2 Hot Swap Controller 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
MAX5915AEUI+T 功能描述:熱插拔功率分布 Dual PCI 2.2 Hot Swap Controller 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
MAX5915AEUI-T 功能描述:熱插拔功率分布 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
MAX5915AUUI+ 功能描述:熱插拔功率分布 Dual PCI 2.2 Hot Swap Controller 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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