參數(shù)資料
型號: MAX5945EAX+
廠商: Maxim Integrated Products
文件頁數(shù): 11/44頁
文件大?。?/td> 0K
描述: IC NETWORK PWR CTRL 36-SSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 30
控制器類型: 網(wǎng)絡(luò)電源控制器
接口: I²C
電源電壓: 3.3V
電流 - 電源: 4.2mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 36-BSOP(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 36-SSOP
包裝: 管件
Start and Stop Conditions
Both SCL and SDA remain high when the interface is
not busy. A master signals the beginning of a transmis-
sion with a START (S) condition by transitioning SDA
from high to low while SCL is high. When the master fin-
ishes communicating with the slave, the master issues
a STOP (P) condition by transitioning SDA from low to
high while SCL is high. The stop condition frees the bus
for another transmission.
MAX5945
Quad Network Power Controller
for Power-Over-LAN
______________________________________________________________________________________
19
Figure 5. 2-Wire Serial Interface Timing Details
SCL
SDAIN
tLOW
tHIGH
tR
tF
tBUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
tHD, STA
tSU, DAT
tHD, DAT
tSU, STA
tHD, STA
tSU, STO
Figure 6. 3-Wire Serial Interface Timing Details
SCL
SDAIN/SDA
tLOW
tHIGH
tR
tF
tBUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
tHD, STA
tSU, DAT
tHD, DAT
tSU, STA
tHD, STA
tSU, STO
Figure 8. Bit Transfer
SDA
SCL
DATA LINE STABLE;
DATA VALID
.
CHANGE OF
DATA ALLOWED
Figure 7. Start and Stop Conditions
START
STOP
SP
SDA/
SDAIN
SCL
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MAX5945EAX+ 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
MAX5945EAX+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
MAX5945EAX-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
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