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Texas Instruments TIOL221 Transceiver

Texas Instruments TIOL221 Transceiver withstands up to 1.2kV (500Ω) per IEC 61000‑4‑5 surge requirements and includes built‑in protection against reverse polarity. This transceiver integrates dual low-power output drivers with active reverse-polarity protection. The TIOL221 transceiver can be configured to generate a wake-up pulse and be used in IO-link master applications. This transceiver features overcurrent, overvoltage, and over-temperature protections. The TIOL221 device also provides a driver output current limit via an external resistor. This transceiver is ideal for field transmitters and actuators, factory automation, process automation, and IO-link PHY in remote IO.

Features

  • 7V to 36V supply voltage range
  • IO-link configurable CQ output with auxiliary Digital Output (DO) and Digital Input (DI) channels
  • Configurable by pin-control or SPI
  • Both CQ and DO channels are configurable for use in IO-link main modules
  • PNP, NPN, or IO-Link configurable CQ output:
    • IEC 61131-9 COM1, COM2, and COM3 data rate support
    • Supports extended cable length to ≥60 meters
  • Output drivers with low power dissipation and high configurability:
    • Low RDSON 2.5Ω (typical)
    • Active driver current limiting capability
    • Configurable driver overcurrent limit:
    • 50mA to 500mA
    • Active reverse polarity protection of up to 65V on LP, CQ, DO, and DI
    • Safe and fast demagnetization of inductive loads
  • Integrated protection features for robust systems:
    • Fault indicator for overcurrent, overtemperature, and UVLO faults
    • -40°C to 125°C extended ambient temperature operation
    • ±8kV IEC 61000-4-2 ESD contact discharge
    • ±4kV IEC 61000-4-4 electrical fast transient
    • ±1.2kV, 500Ω IEC 61000-4-5 surge
  • Large capacitive and inductive load driving capability
  • Integrated LDO provides up to 20mA current
  • Optional external regulator input (5V) to reduce internal power dissipation in the LDO
  • Small space-saving package options
    • 4mm x 4mm VQFN package
    • 2.7mm x 2.7mm DSBGA package

Applications

  • Field transmitters and actuators
  • Factory automation
  • Process automation
  • IO-link PHY in remote IO

Application Diagram

Application Circuit Diagram - Texas Instruments TIOL221 Transceiver

Block Diagram

Block Diagram - Texas Instruments TIOL221 Transceiver
Publicado: 2026-02-26 | Actualizado: 2026-03-08