- 您現在的位置：買賣IC網 > Datasheet目錄43 > MAX5965AEAX+ (Maxim Integrated)IC PSE CTRLR FOR POE 36SSOP Datasheet資料下載
參數資料
| 型號： | MAX5965AEAX+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 26/54頁 |
| 文件大小： | 1334K |
| 描述： | IC PSE CTRLR FOR POE 36SSOP |
| 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： | IP 電話，LAN 網絡供電，網絡路由器和交換機 |
| 內部開關： | 無 |
| 電源電壓： | 2.4 V ~ 3.6 V |
| 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） |
| 供應商設備封裝： | 36-SSOP |
| 包裝： | 管件 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當前第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
26 ______________________________________________________________________________________
Figure 9. Slave Address
SDAIN/SDA
SCL
1
0
A3
A2
A1
A0
0
MSB
LSB
ACK
R/W
Figure 10. Control Byte Received
S
A
A
P
0
SLAVE ADDRESS
CONTROL BYTE
ACKNOWLEDGE FROM THE MAX5965A/MAX5965B
ACKNOWLEDGE FROM THE MAX5965A/MAX5965B
D15 D14 D13 D12 D11 D10 D9 D8
CONTROL BYTE IS STORED ON RECEIPT OF STOP CONDITION
R/W
Slave Address
The MAX5965A/MAX5965B have a 7-bit long slave
address (Figure 9). The bit following the 7-bit slave
address (bit eight) is the R/W bit, which is low for a
write command and high for a read command.
010 always represents the first 3 bits (MSBs) of the
MAX5965A/MAX5965B slave address. Slave address
bits A3, A2, A1, and A0 represent the states of the
MAX5965A/MAX5965Bs A3, A2, A1, and A0 inputs,
allowing up to sixteen MAX5965A/MAX5965B devices
to share the bus. The states of the A3, A2, A1, and A0
latch in upon the reset of the MAX5965A/MAX5965B
into register R11h. The MAX5965A/MAX5965B monitor
the bus continuously, waiting for a START condition fol-
lowed by the MAX5965A/MAX5965Bs slave address.
When a MAX5965A/MAX5965B recognizes its slave
address, the MAX5965A/MAX5965B acknowledge and
are then ready for continued communication.
Global Addressing and Alert Response Protocol
The global address call is used in writing mode to write
the same register to multiple devices (address 0x60). In
read mode (address 0x61), the global address call is
used as the alert response address. When responding
to a global call, the MAX5965A/MAX5965B put their
own address out on the data line whenever the interrupt
is active. Every other device connected to the SDAOUT
line that has an active interrupt also does this. After
every bit transmitted, the MAX5965A/MAX5965B check
that the data line effectively corresponds to the data it
is delivering. If it is not, it then backs off and frees the
data line. This litigation protocol always allows the part
with the lowest address to complete the transmission.
The microcontroller can then respond to the interrupt
and take proper actions. The MAX5965A/MAX5965B do
not reset their own interrupt at the end of the alert
response protocol. The microcontroller has to do it by
clearing the event register through their CoR adresses
or activating the CLR_INT pushbutton.
Message Format for Writing to the
MAX5965A/MAX5965B
A write to the MAX5965A/MAX5965B comprises of the
MAX5965A/MAX5965Bs slave address transmission
with the R/W bit set to 0, followed by at least 1 byte of
information. The first byte of information is the com-
mand byte (Figure 10). The command byte determines
which register of the MAX5965A/MAX5965B is written to
by the next byte, if received. If the MAX5965A/
MAX5965B detect a STOP condition after receiving the
command byte, the MAX5965A/MAX5965B take no fur-
ther action beyond storing the command byte. Any
bytes received after the command byte are data bytes.
The first data byte goes into the internal register of the
MAX5965A/MAX5965B selected by the command byte.
If the MAX5965A/MAX5965B transmit multiple data
bytes before the MAX5965A/MAX5965B detect a STOP
condition, these bytes store in subsequent MAX5965A/
MAX5965B internal registers because the control byte
address autoincrements.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX5969DETE+T | IC CTRLR INTERFCE W/MOSFT 16TQFN |
| MAX5971AETI+ | IC CTRLR PD IEEE 802.3AF 28WQFN |
| MAX5972AETE+T | IC CONTROLLER INTERFACE 16TQFN |
| MAX5978ETJ+ | IC CTLR HOT-SWAP 32TQFN |
| MAX5981BETE+ | IC CTRLR PD IEEE 802.3AF 16TQFN |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5965AEAX+ | 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 |
| MAX5965AEAX+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 |
| MAX5965AUAX+ | 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 |
| MAX5965AUAX+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 |
| MAX5965BCAX+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
發布緊急采購，3分鐘左右您將得到回復。