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TIOL221

ACTIVE

Dual-channel IO-Link device physical layer with integrated LDO regulator and SPI

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Data sheet

TIOL221

ACTIVE
Data sheet Order now

Product details

Type IO-Link IEC 61000-4-2 contact (±V) 8000 IEC 61000-4-4 EFT (±V) 4000 IEC 61000-4-5 (surge) (±V) 1200 Current limit (max) (A) 0.35 LDO output range (V) 3.3, 5 Features Configurable current limiter, Dual Channel, Low residual voltage, Remote wakeup, Reverse polarity protection Operating temperature range (°C) -40 to 125
Type IO-Link IEC 61000-4-2 contact (±V) 8000 IEC 61000-4-4 EFT (±V) 4000 IEC 61000-4-5 (surge) (±V) 1200 Current limit (max) (A) 0.35 LDO output range (V) 3.3, 5 Features Configurable current limiter, Dual Channel, Low residual voltage, Remote wakeup, Reverse polarity protection Operating temperature range (°C) -40 to 125
VQFN (RGE) 24 16 mm² (4 mm × 4 mm) DSBGA (YAH) 25 6.25 mm² (0 mm × 0 mm)
  • 7V to 36V supply voltage
  • 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 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
    • Extended ambient temperature operation:–40°C to 125°C
    • ±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 × 4mm VQFN package
    • 2.7mm × 2.7mm DSBGA package
  • 7V to 36V supply voltage
  • 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 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
    • Extended ambient temperature operation:–40°C to 125°C
    • ±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 × 4mm VQFN package
    • 2.7mm × 2.7mm DSBGA package

The TIOL221 transceiver integrates dual low-power output drivers with active reverse polarity protection. When the device is connected to an IO-Link master through a three-wire interface, the controller can initiate communication, and exchange data with the remote node while the TIOL221 acts as a complete physical layer for the communication. The device also integrates an auxiliary DI channel.

The device is capable of withstanding up to 1.2kV (500Ω) of IEC 61000-4-5 surge and features integrated reverse polarity protection. In addition to the SPI for configurability and expanded diagnostic capability, a simple pin-programmable interface allows easy interfacing with the controller circuits. The output current limit can be configured using either an external resistor or per-configured limits via SPI. TIOL221 can be configured to generate wake-up pulse, and be used in IO-link master applications. Fault reporting and internal protection functions are provided for undervoltage, overcurrent and overtemperature conditions.

The TIOL221 transceiver integrates dual low-power output drivers with active reverse polarity protection. When the device is connected to an IO-Link master through a three-wire interface, the controller can initiate communication, and exchange data with the remote node while the TIOL221 acts as a complete physical layer for the communication. The device also integrates an auxiliary DI channel.

The device is capable of withstanding up to 1.2kV (500Ω) of IEC 61000-4-5 surge and features integrated reverse polarity protection. In addition to the SPI for configurability and expanded diagnostic capability, a simple pin-programmable interface allows easy interfacing with the controller circuits. The output current limit can be configured using either an external resistor or per-configured limits via SPI. TIOL221 can be configured to generate wake-up pulse, and be used in IO-link master applications. Fault reporting and internal protection functions are provided for undervoltage, overcurrent and overtemperature conditions.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TIOL221 Dual Channel IO-Link Device PHY With Integrated LDO and SPI datasheet (Rev. C) PDF | HTML Dec 16, 2025
Application brief How Are IO-Link Solutions Enabling Smarter Factories? PDF | HTML Jun 11, 2025
Certificate TIOL221EVM EU Declaration of Conformity (DoC) PDF | HTML Aug 26, 2024

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TIOL221EVM — TIOL221 evaluation module

The TIOL221 evaluation module (EVM) is a platform to evaluate the main features and performance of the TIOL221 in both the pin-control and SPI configurations. The EVM contains an industry-standard four-pin M12 connector with a Class A two-channel configuration implementing one IO-Link (...)
User guide: PDF | HTML
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Reference design

TIDA-011002 — Cost effective IO-Link Master module reference design

This reference design accelerates the development of IO-Link controller gateways by implementing an 8- port IO-Link gateway that supports up to 400μs cycle time, COM3, 1A per port on L+, and an additional DI/DO. The design supports various Ethernet-based industrial protocols such as EtherCAT®, (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN (RGE) 24 Ultra Librarian
DSBGA (YAH) 25 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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