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Texas Instruments TIOL221 Transceiver

Texas Instruments TIOL221 Transceiver withstands up to 1.2 kV (500 Ω) 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