Datasheet > LTC2874

LTC2874

更新时间： 2024-09-18 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
44页	710K
描述
四通道 IO-Link 主控器热插拔控制器和 PHY

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中文翻译

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数据手册

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LTC2874 数据手册

LTC2874

Quad IO-Link Master

Hot Swap Controller

and PHY

FeaTures

DescripTion

IO-Link^®Compatible (COM1/COM2/COM3)

TheLTC^®2874providesarugged,4-portIO-Linkpowerand

communications interface to remote devices connected

by cables up to 20m in length.

8V to 34V Operation

Hot Swap™ Controller Protected Supply Outputs

Discrete Power MOSFETs for Ruggedness and

Output supply voltage and inrush current are ramped

up in a controlled manner using external N-channel

MOSFETs, providing improved robustness compared to

fully integrated solutions.

Flexibility

Configurable 100mA (4-Port), 200mA (2-Port), or

400mA (1-Port) CQ Drive Capability

Automatic Wake-Up Pulse Generation

Automatic Cable Sensing

Wake-up pulse generation, line noise suppression, con-

nectionsensingandautomaticrestartafterfaultconditions

are supported, along with signaling at 4.8kb/s, 38.4kb/s,

and 230.4kb/s.

CQ Pins Protected to ±±0V

Configurable L+ Current Limit with Foldback

Short Circuit, Input UV/OV and Thermal Protection

Optional Interrupt and Auto-Retry after Faults

Configuration and fault reporting are exchanged using

a SPI-compatible 4-wire interface that operates at clock

rates up to 20MHz.

2.9V to 5.5V Logic Supply for Flexible Digital Interface

No Damage or Latchup to 8kV HBM ESD

38-Lead (5mm × 7mm) QFN and TSSOP Packages

The LTC2874 implements an IO-Link master PHY. For

IO-Link device designs, see the LT^®3669.

L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule are registered trademarks and

Hot Swap is a trademark of Linear Technology Corporation. IO-Link is a registered trademark of

PROFIBUS User Organization (PNO). All other trademarks are the property of their respective

owners.

applicaTions

IO-Link Masters

Intelligent Sensors and Actuators

Factory Automation Networks

Typical applicaTion

Quad-Port 200mA Power Source and Signaling Interface

Operating Waveforms

8V TO 34V

SENSE

LTC2874

CQ1

100µF

1µF

0.2Ω

–

CQ2

2.9V TO 5.5V

SENSE 1

–

20V/DIV

4.7k

SENSE 2

–

IRQ

SENSE 3

CQ3

CQ4

–

SENSE 4

10Ω

GATE1

GATE2

GATE3

GATE4

L+1

TXENn

TXDn

RXDn

1µF

2874 TA01b

4µs/DIV

LOAD: 4nF

CQ1, CQ3: SLEW = 0

CQ2, CQ4: SLEW = 1

µC

CQ1

SCK

SDI

SDO

L+2

CQ2

L+3

CQ3

L+4

CQ4

GND

2874 TA01a

2874fb

For more information www.linear.com/LTC2874

12 3 4 5 6 7...44

中文翻译

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与LTC2874相关器件

型号	品牌	获取价格	描述	数据表
LTC2875	ADI	获取价格	具 ±60V 故障保护功能的 3.3V 或 5V 25kV ESD 高速 CAN 收发器
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LTC2876CDD#PBF	Linear	获取价格	LTC2876 - ±60V Rugged PROFIBUS RS485 Transcei
LTC2876CMS8E#PBF	Linear	获取价格	LTC2876 - ±60V Rugged PROFIBUS RS485 Transcei
LTC2876HDD#PBF	Linear	获取价格	LTC2876 - ±60V Rugged PROFIBUS RS485 Transcei
LTC2876HMS8E#PBF	Linear	获取价格	LTC2876 - ±60V Rugged PROFIBUS RS485 Transcei
LTC2876IDD#PBF	Linear	获取价格	LTC2876 - ±60V Rugged PROFIBUS RS485 Transcei
LTC2876IMS8E#PBF	Linear	获取价格	LTC2876 - ±60V Rugged PROFIBUS RS485 Transcei
LTC2877	Linear	获取价格	Â±60V Rugged PROFIBUS RS485 Transceivers

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