LTC4258

NOT RECOMMENDED FOR NEW DESIGNS

Quad IEEE 802.3af Power over Ethernet Controller with Integrated Detection

Data Sheet Product Selection Table
Part Models
2
1ku List Price
Starting From $8.36
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Part Details

  • Controls Four Independent -48V Powered Ethernet Ports
  • Each Port Includes:
    • IEEE 802®.3af Compliant PD Detection and Classification
    • Output Current Limit with Foldback
    • Short-Circuit Protection with Fast Gate Pull-Down
    • PD Disconnect Using DC Sensing
    • Power Good Indication Operates Autonomously or by I2C™ Control
  • 4-Bit Programmable Digital Address Allows Control of Up to 64 Ports
  • Programmable INT Pin Eliminates Software Polling
  • Current and Duty Cycle Limits Protect External FETs
  • Available in a 36-Pin SSOP Package
LTC4258
Quad IEEE 802.3af Power over Ethernet Controller with Integrated Detection
Figure 1. Complete 4-Port Powered Ethernet Power Source Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

Data Sheet

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
I²C Isolators 1
LTM2883
PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
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Latest Discussions

6 Years Ago
RE: LTC4258 tICUT Fault issue
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