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參數(shù)資料
| 型號(hào)： | MAX5954LETX+T |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 16/22頁 |
| 文件大?。?/td> | 1027K |
| 描述： | IC PCI EXP/HOT-PLUG CTRLR 36TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 熱交換控制器 |
| 應(yīng)用： | 通用型，PCI Express? |
| 內(nèi)部開關(guān)： | 無 |
| 電源電壓： | 3.3V，12V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 36-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 36-TQFN 裸露焊盤（6x6） |
| 包裝： | 帶卷 (TR) |
Thermal Shutdown
When the die temperature goes above +150癈 (T
SD
), an
overtemperature fault occurs and the MAX5954 shuts
down all outputs. The device waits for the junction temper-
ature to decrease below T
SD
- Hysteresis before entering
fault management (see the Fault Management section).
Fault Management
A fault occurs when an overcurrent lasts longer then
t
FAULT
or when the device experiences an overtemper-
ature condition.
" A fault on a main output (12V or 3.3V) shuts down
both main outputs. The 3.3V auxiliary is not affected.
" A fault on the 3.3V auxiliary output shuts down all
three outputs.
The MAX5954A automatically restarts from a fault shut-
down after the t
RESTART
period, while the MAX5954L
latches off. If an overcurrent fault occurred on a main
output, bring ON low for at least t
RESET
(100祍) and
high again to reset the fault and restart the outputs. If
the overcurrent fault occurred on an auxiliary output or
an overtemperature fault occurred, bring both ON and
AUXON low for a minimum of t
RESET
to reset the fault.
Bring ON and/or AUXON high again to restart the
respective outputs. As an extra protection, the
MAX5954L waits a minimum of t
RESTART
before it can
be restarted.
Debounced Logic Gate
(Input and Output)
INPUT accepts an input from a mechanical switch. The
corresponding output (OUTPUT) is debounced for
4.4ms. When INPUT goes from high to low, OUTPUT
goes low right away and stays low for at least 4.4ms.
After the debounce time OUTPUT follows INPUT. If INPUT
goes from low to high, OUTPUT goes high right away and
Single PCI Express, Hot-Plug
Controller
16 ______________________________________________________________________________________
V
ON_,TH
ON, AUXON
PWRGD
FAULT
12G, 3.3G
12VO, 3.3VO
3.3VAUXO
V
PGTH12
V
PGTH3.3
V
PGTH3.3AUX
3.3AUXIN
RISING
EDGE
PWRGD IS PULLED UP TO 3.3.
FAULT IS PULLED UP TO 3.3AUXIN.
t
POR_HL
Figure 2. Power-Up Timing, No Fault
FAULT
3.3VAUXIN
RISING
EDGE
PWRGD IS PULLED UP TO 3.3VAUXO.
FAULT IS PULLED UP TO 3.3VAUXIN.
A FAULT ON THE 3.3V OUTPUT OR 3.3VAUXO OUTPUT PRODUCES SIMILAR RESULTS.
V
ON_,TH
ON
2 x t
FAULT
PWRGD
12G
12V OUTPUT
CURRENT
3.3VAUXO
V
12ILIM,TH
R
SENSE
Figure 3. 12V Power-Up Timing (Turn-On into Output
Overcurrent/Short Circuit)
FAULT
PWRGD IS PULLED UP TO 3.3VAUXO.
FAULT IS PULLED UP TO 3.3VAUXIN.
A FAULT ON THE 3.3V OUTPUT OR 3.3VAUXO OUTPUT PRODUCES SIMILAR RESULTS.
t
FAULT
PWRGD
12G
12V OUTPUT
CURRENT
V
12ILIM,TH
R
SENSE
Figure 4. 12V Output Overcurrent/Short Circuit During Normal
Operation
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參數(shù)描述 |
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| MAX5954LEVCMAXQUSB | 功能描述:電源管理IC開發(fā)工具 MAX5954LMAXQUSB EVAL KIT RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5954LEVKIT | 功能描述:電源管理IC開發(fā)工具 Evaluation Kit/Evaluation System for the MAX5954L/MAX5954A RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5955AEEE | 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 |
| MAX5955AEEE+ | 功能描述:熱插拔功率分布 Dual 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 |
| MAX5955AEEE+T | 功能描述:熱插拔功率分布 Dual 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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