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Dual channel transceiver IC for SIO and IO-Link sensor applications

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1 - 9$6.620%
10 - 20$5.9510%
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Parameter NameParameter Value
Input Voltage Max Volt35.0
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius150.0
Packing TypeTape And Reel
RoHs compliantEcopack3
Package NameVFQFPN 20 4x4x1.0

The L6364 is a dual channel transceiver for industrial sensor applications.

It has been designed to support the IO-Link standard and acts as a bridge between a microcontroller with a sensor or actuator function and a 24 V supply and signaling cable.

In normal operation the L6364 is configured by the microcontroller via the SPI interface at startup. Typically, the L6364 then operates as a Single Input Output IOLink device driving the output lines as configured by the microcontroller. If the device is connected to an IO-Link master, then the master can initiate communication and exchange data with the microcontroller while the L6364 acts as a physical layer for the communication.

Key features
  • Supply voltage from 5 V to 35 V
  • 5 V and 3.3 V compatible I/Os
  • 5 V and 3.3 V, 50 mA linear regulators
  • 50 mA DC-DC regulator with configurable frequency (0.5 MHz to 2 MHz) & voltage (5 V-10.5 V)
  • Low dissipative (5 Ω) CQ and DIO output stages configurable in high side, low side, push/pull
  • Configurable (0.11 A to 0.25 A) current limitation threshold of CQ and DIO lines
  • Configurable (0.22 A to 0.5 A) current limitation threshold of CQ//DIO line (Join Mode)
  • Fully protected:
    • Embedded reverse polarisation diode (DOUT pin)
    • Full zero current reverse polarity between Vplus, CQ, DIO and PGND pins
    • Configurable (up to 216°C) thermal shutdown threshold
    • 7-bit, calibrated, temperature measurement
    • Configurable (6.0 V to 15 V) Vplus undervoltage detection
    • CQ and DIO short-circuit current limit and reporting
  • -40 to +150°C operating temperature
  • Suitable to drive L, C and R loads
  • Quartz-free IO-Link clock extraction and timing generation at COM2 (38.4k Baud) and COM3 (230.4k Baud)
  • Integrated UART peripheral with M-sequence handling (inc. checksum) for all IO-Link sequences according to specification v1.1
  • Single octet UART mode for unlimited M-sequence size and continuous data transfer
  • Internal data buffer for up to 15 octets
  • Transparent UART mode for special applications
  • CQ and DIO switching time = 100 ns (2k Ω//2.2 nF load)
  • 8 V Zener limits for fast demagnetization of inductive loads
  • Two LED drivers with configurable (up to 8 mA) current
  • Design to meet application requirements:
    • ESD IEC 61000-4-2 protection to 4 kV
    • EMC surge protection 2A/50 μs, (coupling 500 Ω)
  • Smart format QFN-20L 4x4 mm package