- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383445 > MAX5946AETX (MAXIM INTEGRATED PRODUCTS INC) Dual PCI Express, Hot-Plug Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX5946AETX |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Dual PCI Express, Hot-Plug Controller |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, QCC36 |
| 封裝： | 6 X 6 MM, 0.90 MM HEIGHT, MO-220, QFN-36 |
| 文件頁數(shù)： | 12/23頁 |
| 文件大?。?/td> | 1019K |
| 代理商： | MAX5946AETX |
M
Dual PCI Express, Hot-Plug
Controller
12
______________________________________________________________________________________
PIN
NAME
FUNCTION
1
PRES-DETA
Present-Detect Input A.
PRES-DETA
accepts inputs from the PRSNT#2 pin on a PCI express connector.
PRES-DETA
has an internal pullup to 3.3VAUXIN. When
PRES-DETA
is low, the outputs follow the
command from ONA and AUXONA after a 4ms debounced time. When
PRES-DETA
goes from low to
high, all outputs of the respective slot shut down with no delay (see Table 2).
2
FONA
Forced-On Input A.
FONA
has a 50k
internal pullup to 3.3VAUXIN. A logic-low on
FONA
turns on all
slot A outputs as long as the power inputs are within their operating range, regardless of the status of
the other input signals. Leave
FONA
open for normal operation (see Table 2).
3
ONA
Slot A 12V And 3.3V Outputs Enable. A logic-high at ONA turns on the 12V and 3.3V outputs of slot A
(see Table 2).
4
AUXONA
Slot A 3.3V Auxiliary Output Enable. A logic-high at AUXONA turns on the slot A auxiliary output
(3.3VAUXOA), see Table 2.
5
12SA+
Slot A 12V Positive Current-Sense Input. Connect the positive terminal of the current-sense resistor to
12SA+ using the Kelvin-sensing technique to assure accurate current sensing.
6
12SA-
Slot A 12V Negative Current-Sense Input. Connect 12SA- to the negative side of the current-sense
resistor using the Kelvin-sensing technique to assure accurate current sensing.
7
12GA
Slot A 12V Gate-Drive Output. Connect 12GA to the gate of slot A’s 12V MOSFET. At power-up, V
12GA
is raised to the internal charge-pump voltage level by a constant current.
8
3.3SA+
Slot A 3.3V Positive Current-Sense Input. Connect the positive side of the current-sense resistor to
3.3SA+ using the Kelvin-sensing technique to assure accurate current sensing. This input is also used
for the 3.3V supply’s UVLO function.
9
3.3SA-
Slot A 3.3V Negative Current-Sense Input. Connect to the negative side of the sense resistor using the
Kelvin-sensing technique to assure accurate current sensing.
10
3.3GA
S ot A 3.3V G ate- D ve O utp ut. C onnect 3.3G A to the g ate of sl ot A’ s 3.3V M OS FE T. At p ow er up V
3 3 GA
i s char g ed to 5.5V ab ove the 3.3V sup p y b y a constant cur ent d er ved fr om V
1 2V N
.
11
FAULTA
Open-Drain Fault Output Signal.
FAULTA
latches active low whenever the slot A outputs are shut down
due to a fault. A fault is either of:
An overcurrent condition lasting longer than the overcurrent timeout.
A device over temperature condition.
If the fault is detected in the main outputs,
FAULTA
must be reset by toggling the ONA input. If the fault
is in the auxiliary output,
FAULTA
must be reset by toggling
both ONA and AUXONA. For the auto-
restart version,
FAULTA
is reset when the part initiates the next power-on cycle.
12
PWRGDA
Open-Drain Power-Good Output.
PWRGDA
goes low t
POR_HL
after all outputs of slot A reach their final
value and the power MOSFETs are fully enhanced.
13
3.3VAUXOA
Slot A 3.3V Auxiliary Power-Supply Output
14
3.3VAUXIN
3.3V Auxiliary Supply Input. 3.3VAUXIN is the input to a charge pump that drives the internal MOSFETs
connecting 3.3VAUXIN to 3.3VAUXOA and 3.3VAUXOB. V
3.3VAUXIN
is also used to power the internal
control logic and analog references of the MAX5946.
15
16
17
18
3.3VAUXOB
PWRGDB
FAULTB
3.3GB
Slot B 3.3V Auxiliary Power Output
Slot B Power-Good Output. See
PWRGDA
function.
Slot B Open-Drain Fault Output. See
FAULTA
function.
Slot B 3.3V Gate-Drive Output. See 3.3GA function.
Pin Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5946LETX | Dual PCI Express, Hot-Plug Controller |
| MAX6002EUR | IC-SM-2.5V VOLTAGE REFERENCE |
| MAX6004EUR | IC-SM-4.096V VOLTAGE REFERENCE |
| MAX6023EBK30-T | Analog IC |
| MAX6023EBK41-T | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5946AETX+ | 功能描述:熱插拔功率分布 Dual PCIe Hot-Plug 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 |
| MAX5946AETX+T | 功能描述:熱插拔功率分布 Dual PCIe Hot-Plug 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 |
| MAX5946AETX-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 |
| MAX5946LETJ | 制造商:Maxim Integrated Products 功能描述:DUAL PCI-EXPRESS HOT-PLUG CONTROLLER - Rail/Tube |
| MAX5946LETX | 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。