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參數資料
| 型號： | MAX5952CUAX+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 35/50頁 |
| 文件大?。?/td> | 1006K |
| 描述： | IC PSE CNTRLR FOR POE 36-SSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 30 |
| 類型： | 以太網供電控制器（PoE） |
| 應用： | 遠程外設（工業控制，相機，數據訪問） |
| 內部開關： | 無 |
| 工作溫度： | 0°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 36-BSOP（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 36-SSOP |
| 包裝： | 管件 |
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High-Power, Quad, PSE Controller
for Power-Over-Ethernet
______________________________________________________________________________________ 35
Setting CL_DISC to 1 (Table 21) enables port over
class current protection, where MAX5952 scales down
the overcurrent limit (V
FLT_LIM
) according to the port
classification status. This feature provides protection to
the system against PDs that violate their maximum
class current allowance.
The higher current setting is enabled only after a suc-
cessful startup so that the PD powers up as a normal
15W device.
CL_DISC, together with EN_HP_CL_ (R15h[6:4]),
EN_HP_ALL (R15h[7]), and ENx_CL6 (R1Ch[7:4]) are
used to program the high-power mode. See Table 3 for
details.
Setting OUT_ISO high (Table 21), forces DET_ to a
high-impedance state.
A reset sets R17h = 0xC0.
Table 21. Miscellaneous Configurations 1
ADDRESS = 17h
SYMBOL
BIT
R/W
DESCRIPTION
INT_EN
7
R/W
A logic-high enables INT functionality
RSTR_EN
6
R
A logic-high enables the autorestart protection time off (as set by the RSTR[1:0] bits)
Reserved
5
R
Reserved
Reserved
4
R
Reserved
POFF_CL
3
R
A logic-high prevents power-up after a classification failure (I > 50mA, valid only in AUTO
mode)
CL_DISC
2
R/W
A logic-high enables reduced current-limit voltage threshold (V
FLT_LIM
) according to port
OUT_ISO
1
R/W
Forces DET_ to high impedance. Does not interfere with other circuit operation.
Table 22. Power-Enable Pushbuttons
ADDRESS = 19h
SYMBOL
BIT
R/W
DESCRIPTION
PWR_OFF4
7
W
A logic-high powers off port 4
PWR_OFF3
6
W
A logic-high powers off port 3
PWR_OFF2
5
W
A logic-high powers off port 2
PWR_OFF1
4
W
A logic-high powers off port 1
PWR_ON4
3
W
A logic-high powers on port 4
PWR_ON3
2
W
A logic-high powers on port 3
PWR_ON2
1
W
A logic-high powers on port 2
PWR_ON1
0
W
A logic-high powers on port 1
Power-enable pushbutton for semi and manual modes
is found in Table 22. Setting PWR_ON_ to 1 turns on
power to the corresponding port. Setting PWR_OFF_ to
1 turns off power to the port. PWR_ON_ is ignored
when the port is already powered and during shut-
down. PWR_OFF_ is ignored when the port is already
off and during shutdown. After execution, the bits reset
to 0. During detection or classification, if PWR_ON_
goes high, the MAX5952 gracefully terminates the cur-
rent operation and turns on power to the port. The
MAX5952 ignores the PWR_ON_ in auto mode. A reset
sets R19h = 00h.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5952CUAX+ | 功能描述:熱插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5952CUAX+T | 功能描述:熱插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5952DEAX+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX5952DEAX+T | 制造商:Maxim Integrated Products 功能描述:HIGH-POWER QUAD PSE CONTROLLER FOR - Tape and Reel |
| MAX5952DUAX+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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