- 您现在的位置：买卖IC网 > Datasheet目录43 > MAX5952CUAX+ (Maxim Integrated)IC PSE CNTRLR FOR POE 36-SSOP Datasheet资料下载
参数资料
| 型号： | MAX5952CUAX+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 24/50页 |
| 文件大小： | 1006K |
| 描述： | IC PSE CNTRLR FOR POE 36-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 30 |
| 类型： | 以太网供电控制器（PoE） |
| 应用： | 远程外设（工业控制，相机，数据访问） |
| 内部开关： | 无 |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-BSOP（0.295"，7.50mm 宽） |
| 供应商设备封装： | 36-SSOP |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页
High-Power, Quad, PSE Controller
for Power-Over-Ethernet
24 ______________________________________________________________________________________
Figure 9. Slave Address
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 MAX5952
ACKNOWLEDGE FROM MAX5952
D15 D14 D13 D12 D11 D10 D9 D8
CONTROL BYTE IS STORED ON RECEIPT OF STOP CONDITION
R/W
Slave Address
The MAX5952 has 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 three bits (MSBs) of the
MAX5952 slave address. Slave address bits A3, A2,
A1, and A0 represent the states of the MAX5952s A3,
A2, A1, and A0 inputs, allowing up to sixteen MAX5952
devices to share the bus. The states of the A3, A2, A1
and A0 latch in upon the reset of the MAX5952 into reg-
ister R11h. The MAX5952 monitors the bus continuous-
ly, waiting for a START condition followed by the
MAX5952s slave address. When a MAX5952 recog-
nizes its slave address, the MAX5952 acknowledges
and is 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 MAX5952 puts out on the data line
its own address whenever its interrupt is active. So
does every other device connected to the SDAOUT line
that has an active interrupt. After every bit transmitted,
the MAX5952 checks that the data line effectively cor-
responds 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 com-
plete the transmission. The microcontroller can then
respond to the interrupt and take proper actions. The
MAX5952 does not reset its 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 MAX5952
A write to the MAX5952 comprises of the MAX5952s
slave address transmission with the R/W bit set to 0, fol-
lowed by at least one byte of information. The first byte
of information is the command byte (Figure 10). The
command byte determines which register of the
MAX5952 is written to by the next byte, if received. If
the MAX5952 detects a STOP condition after receiving
the command byte, the MAX5952 takes no further
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
MAX5952 selected by the command byte. If the
MAX5952 transmits multiple data bytes before the
MAX5952 detects a STOP condition, these bytes store
in subsequent MAX5952 internal registers because the
control byte address auto-increments.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5953DUTM+ | IC INTERFACE 802.3AF 48TQFN |
| MAX5954LETX+T | IC PCI EXP/HOT-PLUG CTRLR 36TQFN |
| MAX5955BEEE+ | IC DUAL HOT-SWAP CTRLR 16-QSOP |
| MAX5957AETN+T | IC TRPL PCI EXP/HOT-PLUG 56-TQFN |
| MAX5960AECS+T | IC CTRLR HOT-PLUG QD 80-TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5952CUAX+ | 功能描述:热插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5952CUAX+T | 功能描述:热插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装: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 |
发布紧急采购，3分钟左右您将得到回复。