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reference designLTC2874 | Demoboard DC2228A

Analog Devices LTC2874 | Demoboard DC2228A

LTC2874 8-Port IO-Link Master Reference Design

Overview

TopologyRF signals / communications
Input voltage20-30 V
IC revisionA

Description

IO-Link®, the new bi-directional, digital, point-to-point communication standard (IEC 61131-9) offers a standardized mapping of advanced sensor and actuator features into the automation tool environment. This technology leverages small but powerful microprocessors being incorporated into sensors and actuators to improve control, parameterization and diagnostics.TEConcept has developed an 8-Port IO-Link master reference design that demonstrates a robust physical interface built using two LTC2874 IC's. The DC2228A will operate your favorite IO-Link device, controlled by Control Tool software (including IODD Interpreter) via an Ethernet connection.DC2228A operates either with an external 24V supply or, optionally, a Power over Ethernet (PoE) system. For the PoE case, it can be completely powered via an Ethernet connection to power sourcing equipment such as a PoE injector or PoE switch. We recommend a 90W LTPoE++ solution such as the Allnet ALL048900, which comes with its own power adapter.

Features

  • IO-Link® Compatible (COM1/COM2/COM3)
  • 8V to 34V Operation
  • Hot Swap™ Controller Protected Supply Outputs
  • Discrete Power MOSFETs for Ruggedness and Flexibility
  • Configurable 100mA (4-Port), 200mA (2-Port), or 400mA (1-Port) CQ Drive Capability
  • Automatic Wake-Up Pulse Generation
  • Automatic Cable Sensing
  • CQ Pins Protected to ±50V
  • Configurable L+ Current Limit with Foldback
  • Short Circuit, Input UV/OV and Thermal Protection
  • Optional Interrupt and Auto-Retry after Faults
  • 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

Typical applications

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(A)
Vaux(V)
L(µH)
n
ISAT(A)
LS(µH)
VT(V (AC))
Size
IC Reference
Data rate
Ports
PoE
Improved CMRR
Operating Temperature
Mount
LSmin.(µH)
SamplesAvailability & Sample
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750311783
SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 19 - 70 V (DC), 24 V
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748
Input Voltage 19 - 70 V (DC)
Output Voltage 124 V
Output Current 12.5 A
Auxiliary Voltage12 V
Inductance20 µH
Turns Ratio1.5:1:0.5 
Saturation Current16 A
Leakage Inductance0.225 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
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Operating Temperature -40 °C up to +125 °C
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Leakage Inductance [min.]0.17 µH
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749022016
SPECWE-LAN LAN Transformer, –, –
Simu­lation
Availability
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Downloads4 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LAN LAN Transformer
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Inductance350 µH
Turns Ratio1:1 
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Insulation Test Voltage1500 V (AC)
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Data rate1000BASE-T 
Ports1 
PoEPoE+ (up to 1150 mA) 
Improved Common Mode RejectionNo 
Operating Temperature 0 °C up to +70 °C
MountSMT 
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