1 Features

• 7V to 36V supply voltage

• IO-link configurable CQ output with auxiliary digital

output (DO) and digital input (DI) channels

• Configurable via pin-control or SPI interface

• PNP, NPN or IO-Link configurable CQ output

– IEC 61131-9 COM1, COM2 and COM3 Data

Rate Support

• 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 350mA

– 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 x 4mm VQFN package

– 2.7mm x 2.7mm DSBGA package

2 Applications

• Field Transmitters and actuators

• Factory automation

• Process automation

• IO-link PHY in remote IO

3 Description

The TIOL221 transceiver integrates dual low-power

output drivers with active reverse polarity protection.

When the device is connected to an IO-Link controller

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 feature integrated

reverse polarity protection. In addition to the SPI

interface 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

interface. TIOL221 can be configured to generate

wake-up pulse, and be used in IO-link controller

applications. Fault reporting and internal protection

functions are provided for undervoltage, overcurrent

and overtemperature conditions.