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DP83822IFRHBT

10/100 Ethernet PHY, RGMII/RMII/MII, fiber, IEC +/-8kV ESD, 120mW@1.8V, VQFN-32, -40 to +125C

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Manufacturer Part：

DP83822IFRHBT

Package：

VQFN-32 (5.0 x 5.0 x 0.95 mm)

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Description

Product Overview

The DP83822IFRHBT from Texas Instruments is an ultra-robust, low-power 10/100Mbps Ethernet PHY transceiver with fiber support, designed for harsh industrial environments. Featuring IEC 61000-4-2 +/-8kV ESD contact discharge, RGMII/RMII/MII MAC interfaces, and 120mW at 1.8V, it supports industrial Ethernet protocols including EtherCAT and PROFINET.

Key Specifications

Speed 10/100 Mbps
MAC Interface RGMII / RMII / MII
Standards 100BASE-FX, 100BASE-TX, 10BASE-Te
ESD (IEC Contact) +/-8 kV
Power (1.8V AVD) < 120 mW
Power (3.3V AVD) < 220 mW
I/O Voltage 1.8V / 2.5V / 3.3V
EEE IEEE 802.3az
Operating Temperature -40C to +125C (I grade)

Features

  • Ultra-robust with IEC 61000-4-2 +/-8kV contact ESD and IEC 61000-4-4 4kV EFT Class A
  • Fiber optic support via 100BASE-FX for extended distance links
  • Flexible MAC interfaces: RGMII, RMII, and MII
  • Energy Efficient Ethernet (EEE) IEEE 802.3az
  • Wake-on-LAN (WoL) with magic packet detection
  • IEEE 1588 start-of-frame detection for time synchronization
  • Cable diagnostics, BIST, and loopback for debug

Applications

  • Motor drives and factory automation
  • Industrial Ethernet fieldbus (EtherCAT, PROFINET)
  • Grid infrastructure and building automation
  • Robotics and motion control

The DP83822IFRHBT from Texas Instruments is an ultra-robust, low-power single-port 10/100Mbps Ethernet PHY transceiver designed for harsh industrial environments. The DP83822IF industrial-grade version operates from -40C to +125C with IEC 61000-4-2 +/-8kV contact ESD and IEC 61000-4-4 4kV EFT Class A protection. It supports 100BASE-FX fiber optic in addition to 100BASE-TX and 10BASE-Te copper. MAC interfaces include RGMII, RMII, and MII. Power consumption is less than 120mW at 1.8V AVD. Features include IEEE 802.3az EEE, Wake-on-LAN, IEEE 1588 start-of-frame detection, cable diagnostics, BIST, and multiple loopback modes. Supports industrial Ethernet protocols including EtherCAT and PROFINET with fast link-down detection.

The DP83822IFRHBT implements the IEEE 802.3 physical layer for 10/100 Ethernet with industrial-grade robustness. (1) 100BASE-TX: The PHY encodes transmit data using 4B/5B and MLT-3, and decodes received MLT-3 signals with adaptive equalization. (2) 100BASE-FX: For fiber connections, the PHY connects to an external fiber optic transceiver via dedicated fiber pins, supporting long-distance links. (3) 10BASE-Te: Manchester encoding/decoding for 10Mbps operation. (4) Auto-Negotiation and Auto-MDIX: Automatic speed, duplex, and crossover detection. (5) RGMII/RMII/MII: The configurable MAC interface supports reduced pin count (RMII, RGMII) or full MII depending on system requirements. (6) EEE: During idle periods, the PHY enters low-power mode while maintaining link, reducing power consumption. (7) Robustness: Integrated ESD and EFT protection on the MDI pins eliminates the need for external TVS diodes in many applications.

Pin Group Name Type Function
1,2 TXP/TXN Analog Differential transmit pair (copper)
3,4 RXP/RXN Analog Differential receive pair (copper)
5 MDC Input Management data clock (up to 25MHz)
6 MDIO I/O Management data I/O (2.2k pull-up)
7 RGMII/RMII/MII I/O Configurable MAC interface pins
8 INT/PWDN I/O Interrupt or power-down (configurable)
9 RESET Input Active low reset (10us min)
10 XI/XO I/O 25MHz crystal/oscillator interface
11 LED[2:0] Output 3 LED outputs (link, speed, activity)
  • Motor drives and factory automation with IEC ESD/EFT protection
  • Industrial Ethernet fieldbus (EtherCAT, PROFINET) with fast link-down detection
  • Grid infrastructure with fiber optic 100BASE-FX long-distance links
  • Robotics and motion control with IEEE 1588 time synchronization
Manufacturer Part Number Package Notes
TI DP83822HFRHBT VQFN-32 0 to 70C commercial grade
TI DP83826AERHBR VQFN-32 Next-gen with enhanced features
Microchip KSZ8041FTLI LQFP-48 10/100 PHY, no fiber
Realtek RTL8201FI QFP-48 Industrial 10/100 PHY
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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