- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384688 > MAX5945 (Maxim Integrated Products, Inc.) Quad Network Power Controller for Power-Over-LAN PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX5945 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quad Network Power Controller for Power-Over-LAN |
| 中文描述： | 四路網(wǎng)絡(luò)電源控制器，用于LAN供電 |
| 文件頁(yè)數(shù)： | 25/44頁(yè) |
| 文件大?。?/td> | 572K |
| 代理商： | MAX5945 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)當(dāng)前第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)
If the port remains in current limit or the PGOOD condi-
tion is not met at the end of the startup period, the port
shuts down and the corresponding STRT_FLT_ is set to
1. A 1 in any of the STRT_FLT_ bits forces R00h[6] to 1.
IVC_ is set to 1 whenever the port current exceeds the
maximum allowed limit for the class (determined during
the classification process). A 1 in any of IVC_ forces
R00h[6] to 1. When the CL_DISC (R17h[2]) is set to 1,
the port will also limit the load current according to its
class as specified in the
Electrical Characteristics
table. As with any other events register, the startup
event register (Table 10) has two addresses. When
read through the R08h address, the content of the reg-
ister is left unchanged. When read through the CoR
R09h address, the register content will be cleared. A
reset sets R08h/R09h = 00h.
The MAX5945 continuously monitors the power supplies
and sets the appropriate bits in the supply event register
(Table 11). V
DD_OV
/ V
EE_OV
is set to 1 whenever V
DD
/
V
EE
exceeds its overvoltage threshold. V
DD_UV
/ V
EE_UV
is set to 1 whenever V
DD
/ V
EE
falls below its undervolt-
age threshold.
OSC_FAIL is set to 1 whenever the amplitude of the
oscillator signal at the OSC_input falls below a level
that might compromise the AC disconnect detection
M
Quad Network Power Controller
for Power-Over-LAN
______________________________________________________________________________________
25
ADDRESS =
SYMBOL
IVC4
IVC3
IVC2
IVC1
STRT_FLT4
STRT_FLT3
STRT_FLT2
STRT_FLT1
08h
R/W
R
R
R
R
R
R
R
R
09h
R/W
CoR
CoR
CoR
CoR
CoR
CoR
CoR
CoR
BIT
7
6
5
4
3
2
1
0
DESCRIPTION
Class overcurrent flag for port 4
Class overcurrent flag for port 3
Class overcurrent flag for port 2
Class overcurrent flag for port 1
Startup failed on port 4
Startup failed on port 3
Startup failed on port 2
Startup failed on port 1
Table 10. Startup Event Register
ADDRESS =
SYMBOL
TSD
V
DD_OV
V
DD_UV
V
EE_UVLO
V
EE_OV
V
EE_UV
OSC_FAIL
V
DD_UVLO
0Ah
R/W
R
R
R
R
R
R
R
R
0Bh
R/W
CoR
CoR
CoR
CoR
CoR
CoR
CoR
CoR
BIT
7
6
5
4
3
2
1
0
DESCRIPTION
Overtemperature shutdown
V
DD
overvoltage condition
V
DD
undervoltage condition
V
EE
undervoltage lockout condition
V
EE
overvoltage condition
V
EE
undervoltage condition
Oscillator amplitude is below limit
V
DD
undervoltage lockout condition
Table 11. Supply Event Register
ADDRESS = 0Ch, 0Dh, 0Eh, 0Fh
SYMBOL
Reserved
BIT
7
6
5
4
3
2
1
0
R/W
R
R
R
R
R
R
R
R
DESCRIPTION
Reserved
CLASS_[2]
CLASS_[1]
CLASS_[0]
Reserved
DET_[2]
DET_[1]
DET_[0]
CLASS_
Reserved
DET_ST_
Table 12. Port Status Registers
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5945CAX | Quad Network Power Controller for Power-Over-LAN |
| MAX5945EAX | Quad Network Power Controller for Power-Over-LAN |
| MAX5948 | AND-OR-invert Gates 14-CFP -55 to 125 |
| MAX5948A | -48V Hot-Swap Controllers with External RSENSE |
| MAX5948AESA | -48V Hot-Swap Controllers with External RSENSE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5945CAX | 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 |
| MAX5945CAX+ | 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr 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 |
| MAX5945CAX+T | 功能描述:熱插拔功率分布 IEEE 802.3af Quad Net Pwr 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 |
| MAX5945CAX-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 |
| MAX5945EAX | 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)。