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參數(shù)資料
| 型號： | MAX5913 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | +48V Quad Hot-Swap Controllers For Power-Over-LAN |
| 中文描述： | +48V、四路、熱插拔控制器，用于LAN供電 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 827K |
| 代理商： | MAX5913 |
M
+48V Quad Hot-Swap Controllers For
Power-Over-LAN
______________________________________________________________________________________
13
A second comparator with a detection threshold of
3V
SC
activates a fast 15mA pulldown of the gate. The
purpose of this comparator is to rapidly discharge the
gate when a momentary current peak overstresses the
external FET helping the regulation to act more rapidly.
The sense resistor is also used to detect an open-circuit
or low-current condition with a typical threshold of 3mV.
Open-Circuit Detection
The MAX5913/MAX5914 detect when a port has low
current or is open circuit, and turn off the switch to that
port. After the switch is turned on and the Power-OK
conditions are met, the open-circuit detector is enabled
after a 900ms delay. The open-circuit voltage threshold
is set at 3mV across the current-sense resistor. Drive
OCEN high to enable open-circuit detectors for all four
ports. Drive OCEN low to disable the detectors. Each
port has an open-circuit flag that can be read from
STAT_ outputs when the STATOUT is low. STAT_ output
high indicates that the switch is latched off due to an
open-circuit condition on that port. To reset the latch
pull ON_ low and then high to restart (Table 1).
Output Voltage Sense and Power-OK
The MAX5913/MAX5914 sense the output voltage of
the port at the source of the external MOSFET switch.
FDT3612
N
V
RLY
V
CC
V
RLY
V
DD
RTIM
+12V
+3.3V
DIGITAL
INTERFACE
OUTPUTS
DIGITAL
INTERFACE
INPUTS
DGND
AGND
RLYD1
RLYD4
CSP1
DRAIN1
OUT1
1.0
μ
F
CSP4
DRAIN4
GATE4
OUT4
2k
0.33
100
100
0.33
1k
GATE1
FAULT
STAT1
STAT2
STAT3
STAT4
V
CC
PORT 1
ON1
ON2
ON3
ON4
RLYON1
RLYON2
RLYON3
RLYON4
OCEN
RTRYEN
STATOUT
DC
V
CC
= +35V TO +72V
MAX5913
FDT3612
N
K4
NO
K1
NO
V
RLY
PORT 4
1
μ
F
Figure 5. Typical Application Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5913EMH | +48V Quad Hot-Swap Controllers For Power-Over-LAN |
| MAX5914EMH | +48V Quad Hot-Swap Controllers For Power-Over-LAN |
| MAX6018 | ER 9C 9#16 SKT PLUG |
| MAX6018AEUR12 | Circular Connector; No. of Contacts:3; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:22; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:22-21 RoHS Compliant: No |
| MAX6018AEUR12-T | ER 4C 4#8 PIN PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5913AEMH | 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 |
| MAX5913AEMH+ | 功能描述:熱插拔功率分布 48V 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 |
| MAX5913AEMH+D | 制造商:Maxim Integrated Products 功能描述:HOT SWAP CNTRLR 44MQFP - Rail/Tube |
| MAX5913AEMH+T | 功能描述:熱插拔功率分布 48V 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 |
| MAX5913AEMH+TD | 制造商:Maxim Integrated Products 功能描述:HOT SWAP CNTRLR 44MQFP - Tape and Reel |
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