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參數(shù)資料
| 型號(hào)： | MAX5965AEAX+ |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 24/54頁 |
| 文件大?。?/td> | 1334K |
| 描述： | IC PSE CTRLR FOR POE 36SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 30 |
| 類型： | 以太網(wǎng)供電控制器（PoE） |
| 應(yīng)用： | IP 電話，LAN 網(wǎng)絡(luò)供電，網(wǎng)絡(luò)路由器和交換機(jī) |
| 內(nèi)部開關(guān)： | 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(yīng)商設(shè)備封裝： | 36-SSOP |
| 包裝： | 管件 |
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High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
24 ______________________________________________________________________________________
Watchdog
The R1Eh and R1Fh registers control the watchdog
operation. The watchdog function, when enabled, allows
the MAX5965A/MAX5965B to gracefully take over con-
trol or securely shuts down the power to the ports in
case of software/firmware crashes. Contact the factory
for more details.
Address Inputs
A3, A2, A1, and A0 represent the 4 LSBs of the chip
address. The complete chip address is 7 bits (see
Table 4).
The 4 LSBs latch on the low-to-high transition of RESET or
after a power-supply start (either on V
DD
or V
EE
). Address
inputs default high through an internal 50k& pullup resistor
to V
DD
. The MAX5965A/MAX5965B also respond to the
call through a global address 30h (see the Global
Addressing and Alert Response Protocol section).
I
2
C-Compatible Serial Interface
The MAX5965A/MAX5965B operate as a slave that
sends and receives data through an I
2
C-compatible, 2-
wire or 3-wire interface. The interface uses a serial-data
input line (SDAIN), a serial-data output line (SDAOUT),
and a serial-clock line (SCL) to achieve bidirectional
communication between master(s) and slave(s). A mas-
ter (typically a microcontroller) initiates all data transfers
to and from the MAX5965A/MAX5965B, and generates
the SCL clock that synchronizes the data transfer. In
most applications, connect the SDAIN and the SDAOUT
lines together to form the serial-data line (SDA).
Using the separate input and output data lines allows
optocoupling with the controller bus when an isolated
supply powers the microcontroller.
The MAX5965A/MAX5965B SDAIN line operates as an
input. The MAX5965A/MAX5965B SDAOUT operates as
an open-drain output. A pullup resistor, typically 4.7k&,
is required on SDAOUT. The MAX5965A/MAX5965B SCL
line operates only as an input. A pullup resistor, typically
4.7k&, is required on SCL if there are multiple masters,
or if the master in a single-master system has an open-
drain SCL output.
0
1
0
A3
A2
A1
A0
R/W
Table 4. MAX5965A/MAX5965B Address
Figure 4. 2-Wire, Serial-Interface Timing Details
SCL
SDAIN
t
LOW
t
HIGH
t
R
t
F
t
BUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
t
HD, STA
t
SU, DAT
t
HD, DAT
t
SU, STA
t
HD, STA
t
SU, STO
Figure 5. 3-Wire, Serial-Interface Timing Details
SCL
SDAIN/SDA
t
LOW
t
HIGH
t
R
t
F
t
BUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
t
HD, STA
t
SU, DAT
t
HD, DAT
t
SU, STA
t
HD, STA
t
SU, STO
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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(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 |
| 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(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 |
| 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(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 |
| 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(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 |
| MAX5965BCAX+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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