VOUT, to avoid the possibility of leakage shu" />
參數(shù)資料
型號(hào)： LTC4264IDE#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 14/24頁(yè)
文件大小： 0K
描述： IC CNTRLR PD INTERFACE 12-DFN
產(chǎn)品培訓(xùn)模塊： Power over Ethernet
標(biāo)準(zhǔn)包裝： 91
控制器類(lèi)型： 以太網(wǎng)供電控制器（POE）
接口： IEEE 802.3af
電流 - 電源： 3mA
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 12-WFDFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 12-DFN（4x3）
包裝： 管件
LTC4264
21
4264f
APPLICATIONS INFORMATION
VOUT, to avoid the possibility of leakage shutting down the
LTC4264. If not used, tie SHDN to VIN.
The load capacitor connected between GND and VOUT
of the LTC4264 can store signicant energy when fully
charged. The design of a PD must ensure that this en-
ergy is not inadvertently dissipated in the LTC4264. The
polarity-protection diodes prevent an accidental short
on the cable from causing damage. However, if the VIN
pin is shorted to GND inside the PD while the capacitor
is charged, current will ow through the parasitic body
diode of the internal MOSFET and may cause permanent
damage to the LTC4264.
ELECTRO STATIC DISCHARGE AND SURGE
PROTECTION
The LTC4264 is specied to operate with an absolute
maximum voltage of –90V and is designed to tolerate brief
over-voltage events. However, the pins that interface to the
outside world (primarily VIN and GND) can routinely see
peak voltages in excess of 10kV. To protect the LTC4264,
it is highly recommended that the SMAJ58A unidirectional
58V transient voltage suppressor be installed between the
diode bridge and the LTC4264 (D3 in Figure 4).
ISOLATION
The 802.3 standard requires Ethernet ports to be electrically
isolated from all other conductors that are user accessible.
This includes the metal chassis, other connectors and
any auxiliary power connection. For PDs, there are two
common methods to meet the isolation requirement. If
there will be any user accessible connection to the PD,
then an isolated DC/DC converter is necessary to meet
the isolation requirements. If user connections can be
avoided, then it is possible to meet the safety requirement
by completely enclosing the PD in an insulated housing.
In all PD applications, there should be no user accessible
electrical connections to the LTC4264 or support circuitry
other than the RJ-45 port.
相關(guān)PDF資料
PDF描述
PIC16F722-E/MV IC MCU 8BIT 3.5KB FLASH 28UQFN
PIC16LF722-E/ML IC PIC MCU FLASH 3.5KB 28-QFN
PIC16F689-E/SS IC PIC MCU FLASH 4KX14 20SSOP
PIC16F685-E/SS IC PIC MCU FLASH 4KX14 20SSOP
KSZ8895RQI IC 10/100-T 5 PORT SW 128PQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4265 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Quad IEEE 802.3at Power over Ethernet Controller
LTC4265CDE#PBF 功能描述:IC CTRLR PD INTERFACE HP 12-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
LTC4265CDE#TRPBF 功能描述:IC CTRLR PD INTERFACE HP 12-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
LTC4265CDE-PBF 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:IEEE 802.3at High Power PD Interface Controller with 2-Event Classifi cation Recognition
LTC4265CDE-TRPBF 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:IEEE 802.3at High Power PD Interface Controller with 2-Event Classifi cation Recognition
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*