The ZIOL2401 is a smart power solution using a line driver/level shifter IC with two independent I/O channels providing a wide range of configurable system features. It addresses the physical layer of sensor/actuator systems in factory automation. It is especially designed to support the communication standard IO-Link. For IO-Link applications, specific functionality for Master and Device mode operation has been implemented.
The IC provides a wide range of configurable system features. For example, the output slew rate is adjustable in order to achieve excellent EMC behavior. The maximum current driven by the output stages can be set to a value that fits best the needs of the application.
The output drivers are push-pull stages which reach in tandem mode an R_DSon of less than 3.3Ω at all operational temperatures in tandem mode.
The configuration is stored in an on-chip EEPROM and automatically loaded into the IC's control register during power up. The IC also provides status information, such as overload and over temperature. An SPI interface supports access to configuration and status registers.
To minimize the number of devices needed for an application, the IC contains a DC/DC converter with an adjustable output voltage from 3V to 15V and a maximum continuous load current of 50mA.
The IC is fabricated in a powerful CMOS Mixed Signal Technology that allows supply voltages up to 40V. The EEPROM read/write functionality is guaranteed within the entire operating temperature range in combination with a low-voltage core supply of 3.3V.

• Two independent high voltage I/O channels
• Supports physical layer of IO-Link (master and device side) and standard line driver
• Supports IO-Link COM1, COM2 and COM3
• IO-Link-specific WURQ (Wake-up Request) detection
• Wide range of configurable feature set which is automatically loaded during power on
• DC/DC converter with adjustable output voltage to provide power for the application circuit
• On-chip EEPROM for system configuration (rd/wr), and status information (rd)
• SPI Interface to access on-chip registers
• Low voltage side: 3.3V output, 5V tolerant inputs
• 3.3V output, 5V tolerant inputs
• Chip temperature monitoring/diagnosis
• Quick over-current and over-temperature signaling

• Highest flexibility through configurable feature set
• Excellent EMC performance due to adjustable output slew rate control
• R_DSon < 3.3Ω in tandem mode at all operational temperatures
• Programmable limitation of driver output current
• Smart Power concept - DC/DC converter on-chip
• Nonvolatile storage of system configuration
• Space saving QFN package

General:

• IC used as physical layer transceiver
• Supports SIO- and IO-Link mode
• DC/DC converter provides power supply for application

PHY in Sensor Application:

• IO-Link specific WURQ-event detection
• Additional output channel for fast event signaling to the PLC

PHY in Master Application:

• Maximum output current (WURQ request) achieved by parallelizing both driver outputs
• Additional input channel for fast event signaling