參數(shù)資料
型號(hào)： LTC4267CDHC#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 1/32頁(yè)
文件大小： 0K
描述： IC POE 802.3AF INTERFACE 16-DFN
標(biāo)準(zhǔn)包裝： 2,500
控制器類型： 以太網(wǎng)供電控制器（POE）
接口： IEEE 802.3af
電流 - 電源： 3mA
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 16-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 16-DFN（5x3）
包裝： 帶卷 (TR)
相關(guān)產(chǎn)品： 732-2437-6-ND - TRANS FLYBACK POE 40UH SMD
732-2436-6-ND - TRANS FLYBACK POE 35UH SMD
732-2435-6-ND - TRANS FLYBACK POE 127UH SMD
732-2434-6-ND - TRANS FLYBACK POE 127UH SMD
732-2433-6-ND - TRANS FLYBACK POE 127UH SMD
732-2432-6-ND - TRANS FLYBACK POE 127UH SMD
732-2431-6-ND - TRANS FLYBACK POE 127UH SMD
732-2430-6-ND - TRANS FLYBACK POE 127UH SMD
732-2437-1-ND - TRANS FLYBACK POE 40UH SMD
732-2436-1-ND - TRANS FLYBACK POE 35UH SMD
更多...
LTC4267
1
4267fc
Power over Ethernet
IEEE 802.3af PD Interface with
Integrated Switching Regulator
The LTC
4267 combines an IEEE 802.3af compliant Pow-
ered Device (PD) interface with a current mode switching
regulator, providing a complete power solution for PD
applications. The LTC4267 integrates the 25kΩ signature
resistor, classication current source, thermal overload pro-
tection, signature disable and power good signal along with
an undervoltage lockout optimized for use with the IEEE-
required diode bridge. The precision dual level input current
limit allows the LTC4267 to charge large load capacitors
and interface with legacy PoE systems.
The current mode switching regulator is designed for
driving a 6V rated N-channel MOSFET and features pro-
grammable slope compensation, soft-start, and constant
frequency operation, minimizing noise even with light
loads. The LTC4267 includes an onboard error amplier
and voltage reference allowing use in both isolated and
nonisolated congurations.
The LTC4267 is available in space saving, low prole
16-pin SSOP or DFN packages.
■
IP Phone Power Management
■
Wireless Access Points
■
Security Cameras
■
Power over Ethernet
■
Complete Power Interface Port for IEEE 802
.3af
Powered Device (PD)
■
Onboard 100V, 400mA UVLO Switch
■
Precision Dual Level Inrush Current Limit
■
Integrated Current Mode Switching Regulator
■
Onboard 25kΩ Signature Resistor with Disable
■
Programmable Classication Current (Class 0-4)
■
Thermal Overload Protection
■
Power Good Signal
■
Integrated Error Amplier and Voltage Reference
■
Low Prole 16-Pin SSOP and 3mm × 5mm DFN
Packages
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
Class 2 PD with 3.3V Isolated Power Supply
PVCC
PWRGD
NGATE
SENSE
ITH/RUN
VFB
PGND
POUT
VPORTP
RCLASS
SIGDISA
VPORTN
LTC4267
+
RCLASS
68.1
1%
5F
MIN
10k
470
100k
60.4k
PVCC
4.7F
320F
MIN
22nF
PA1133
PS2911
BAS516
TLV431
SBM1040
SMAJ58A
3.3V
1.5A
CHASSIS
HD01
+
–
+
–
HD01
–48V
FROM
DATA PAIR
–48V
FROM
SPARE PAIR
4267 TA01
Si3440
0.1
6.8k
10k
0.1F
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4267CGN 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH -57V 16-Pin SSOP N
LTC4267CGN#PBF 功能描述:IC POE 802.3AF INTERFACE 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4267CGN#PBF-ND 制造商:Linear Technology 功能描述:
LTC4267CGN#TRPBF 功能描述:IC POE 802.3AF INTERFACE 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4267CGN-1 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
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