IO-LINK PHY for Device Nodes

IO-LINK PHY for Device Nodes - SN65HVD101

Recommended alternative parts

  • TIOL111  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Device offers smaller package, integrated surge protection, and LDO options


The SN65HVD101 and ‘HVD102 IO-Link PHYs implement the IO-Link interface for industrial point-to-point communication. When the device is connected to an IO-Link master through a 3-wire interface, the master can initiate communication and exchange data with the remote node while the SN65HVD10X acts as a complete physical layer for the communication.

The IO-Link driver output (CQ) can be used in push-pull, high-side, or low-side configurations using the EN and TX input pins. The PHY receiver converts the 24-V IO-Link signal on the CQ pin to standard logic levels on the RX pin. A simple parallel interface is used to receive and transmit data and status information between the PHY and the local controller.

The SN65HVD101 and ’HVD102 implement protection features for overcurrent, overvoltage and overtemperature conditions. The IO-Link driver current limit can be set using an external resistor. If a short-circuit current fault occurs, the driver outputs are internally limited, and the PHY generates an error signal (SC). These devices also implement an overtemperature shutdown feature that protects the device from high-temperature faults.

The SN65HVD102 operates from a single external 3.3-V or 5-V local supply. The SN65HVD101 integrates a linear regulator that generates either 3.3 V or 5 V from the IO-Link L+ voltage for supplying power to the PHY as well as a local controller and additional circuits.

The SN65HVD101 and ’HVD102 are available in the 20-pin RGB package (4 mm × 3,5 mm QFN) for space-constrained applications.


  • Configurable CQ Output: Push-Pull, High-Side, or Low-Side for SIO Mode
  • Remote Wake-Up Indicator
  • Current Limit Indicator
  • Power-Good Indicator
  • Overtemperature Protection
  • Reverse Polarity Protection
  • Configurable Current Limits
  • 9-V to 36-V Supply Range
  • Tolerant to 50-V Peak Line Voltage
  • 3.3-V/5-V Configurable Integrated LDO (SN65HVD101 ONLY)
  • 20-pin QFN Package, 4 mm × 3.5 mm

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Parametrics Compare all products in IO-Link/Digital IO

Device Type
Supply Voltage(s) (V)
IEC 61000-4-2 Contact (+/- kV)
IEC 61000-4-4 EFT (+/- kV)
IEC 61000-4-5 (Surge) (+/- kV)
Current Limit (Max) (mA)
LDO Output Range (V)
Operating Temperature Range (C)
Package Group
SN65HVD101 SN65HVD102 TIOL111 TIOS101
IO-Link    IO-Link    IO-Link    Digital Output Switch   
9 to 30    9 to 30    7 to 36    7 to 36   
N/A    N/A    16    16   
N/A    N/A    4    4   
N/A    N/A    1.2    1.2   
N/A    N/A    350    350   
3.3    N/A    N/A    N/A   
Reverse polarity protection
Configurable current limiter
Remote wakeup
Integrated LDO (3.3V or 5V)
Adjustable IO
Thermal Warning   
Reverse polarity protection
Configurable current limiter
Remote wakeup
Adjustable IO
Thermal Warning   
Reverse polarity protection
Configurable current limiter
Remote wakeup   
Reverse polarity protection
Configurable current limiter   
Catalog    Catalog    Catalog    Catalog   
-40 to 105    -40 to 105    -40 to 125    -40 to 125   
20VQFN    20VQFN    10VSON    10VSON