91丨国产|精品|丝袜,纯黄色A片大片毛片,久久久精品一二三区蜜桃

LTC4267

Power over Ethernet

IEEE 802.3af PD Interface with

Integrated Switching Regulator

DESCRIPTIO

The LTC

廬

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 25k惟 signature

resistor, classi鏗乧ation 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 ampli鏗乪r

and voltage reference allowing use in both isolated and

nonisolated con鏗乬urations.

The LTC4267 is available in space saving, low pro鏗乴e

16-pin SSOP or DFN packages.

Complete Power Interface Port for IEEE 802

廬

.3af

Powered Device (PD)

Onboard 100V, 400mA UVLO Switch

Precision Dual Level Inrush Current Limit

Integrated Current Mode Switching Regulator

Onboard 25k惟 Signature Resistor with Disable

Programmable Classi鏗乧ation Current (Class 0-4)

Thermal Overload Protection

Power Good Signal

Integrated Error Ampli鏗乪r and Voltage Reference

Low Pro鏗乴e 16-Pin SSOP and 3mm

脳

5mm DFN

Packages

APPLICATIO S

鈻?/div>

IP Phone Power Management

Wireless Access Points

Security Cameras

Power over Ethernet

, LTC and LT are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

802 is a registered trademark of Institute of Electrical and Electronics Engineers, Inc.

TYPICAL APPLICATIO

Class 2 PD with 3.3V Isolated Power Supply

PA1133

10k

鈥?8V

FROM

DATA PAIR

SBM1040

3.3V

1.5A

+

HD01

V

PORTP

P

VCC

鈥?/div>

SMAJ58A

0.1碌F

+

P

VCC

4.7碌F

+

PWRGD

LTC4267

NGATE

SENSE

R

CLASS

I

TH

/RUN

V

FB

SIGDISA

V

PORTN

PGND

P

OUT

5碌F

MIN

10k

P

VCC

Si3440

0.1鈩?/div>

470

鈥?8V

FROM

SPARE PAIR

+

HD01

鈥?/div>

R

CLASS

68.1鈩?/div>

1%

6.8k

22nF

100k

BA5516

PS2911

U

鈥?/div>

U

320碌F

鈥?/div>

CHASSIS

TLV431

60.4k

4267 TA01

4267f

1

型號(hào)

版本

描述

廠商

下載
LTC485

英文版

Low Power RS485 Interface Transceiver

LINER

LTC485
LTC485

英文版

Low Power RS485 Interface Transceiver

Linear

LTC485
LTC486

英文版

Quad Low Power RS485 Driver

LINER

LTC486
LTC486

英文版

Quad Low Power RS485 Driver

Linear

LTC486
LTC487

英文版

Quad Low Power RS485 Driver

LINER

LTC487
LTC487

英文版

Quad Low Power RS485 Driver

Linear

LTC487
LTC488

英文版

Quad RS485 Line Receiver

LINER

LTC488
LTC488

英文版

Quad RS485 Line Receiver

Linear

LTC488
LTC489

英文版

Quad RS485 Line Receiver

LINER

LTC489
LTC489

英文版

Quad RS485 Line Receiver

Linear

LTC489
LTC490

英文版

Differential Driver and Receiver Pair

LINER

LTC490
LTC490

英文版

Differential Driver and Receiver Pair

Linear

LTC490
LTC491

英文版

Differential Driver and Receiver Pair

LINER

LTC491
LTC491

英文版

Differential Driver and Receiver Pair

Linear

LTC491
LTC4001

英文版

2A Synchronous Buck Li-Ion Charger

LINER [Lin...

LTC4001
LTC4002

英文版

Standalone Linear Li-lon Battery Charger with Thermistor Inp...

LINER

LTC4002
LTC4002

英文版

Standalone Li-Ion Switch Mode Battery Charger

Linear

LTC4002
LTC4006

英文版

4A, High Efficiency, Standalone Li Battery Charger

LINER

LTC4006
LTC4006

英文版

4A, High Efficiency, Standalone Li-Ion Battery Charger

LINER [Lin...

LTC4006
LTC4006

英文版

4A High Efficiency Standalone Li-Ion Battery Charger

Linear

LTC4006

LTC4257 Datasheet

PDF預(yù)覽

LTC4257相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

LTC4257 Datasheet

PDF預(yù)覽

LTC4257相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

建議反饋

PDF糾錯(cuò)X