STMicroelectronics L6362A

Overview

L6362A from STMicroelectronics is an IO-Link and SIO mode transceiver IC compliant with PHY2 (3-wire), supporting COM1 (4.8 kbaud), COM2 (38.4 kbaud), and COM3 (230.4 kbaud) modes. It integrates configurable high-side/low-side/push-pull output stages, a selectable 3.3 V/5 V linear regulator (10 mA), and full protection including reverse polarity, overload cut-off, overtemperature, and open-wire detection. It drives R/C/L loads up to 30 μF and inductive energy up to 500 mJ in industrial sensor interfaces.

For engineers reviewing the L6362A datasheet, L6362A pinout, L6362A application, or L6362A equivalent, key selection considerations include IO-Link PHY2 compliance, dual-voltage I/O compatibility (3.3 V/5 V), programmable output stage topology, integrated diagnostics (OL, EN/DIAG), and robust industrial-grade protection for 24 V factory automation environments.

Technical Context

The L6362A implements a dual-channel power stage (OUTH/OUTL) with configurable topology-high-side (load to GND), low-side (load to VCC), or push-pull (both outputs wired)-enabling flexible load interface across IO-Link, SIO, and discrete switching applications. Its receiver supports I/Q line decoding with programmable thresholds (VI/QTHLH = 11–12.5 V at VCC ≥ 18 V) and 30–110 ns debounce.

Protection architecture includes active clamp for fast demagnetization of inductive loads, undervoltage lockout (VUVON = 6.5 V typ.), current-limiting with 0.3 A intervention threshold, and open-drain diagnostic outputs (EN/DIAG, OL) reporting fault states. Thermal resistance is 50 °C/W when the exposed pad is soldered to 100 mm² copper with vias.

Key Specifications

Pinout & Package

Package: VFDFPN 12L (3 × 3 × 0.90 mm), thermally enhanced with exposed pad (non-electrical, must be floated or connected to floating copper for thermal relief).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IO-Link transceiver applications.

Compared with MAX14824 and TLE9201SG, the L6362A uniquely combines COM3-speed IO-Link PHY, 0.3 A integrated drive, push-pull configurability, and dedicated wake-up diagnostics in a 3×3 mm industrial package-making it optimal for space-constrained, multi-mode sensor nodes.

Availability

L6362A is available at Aetrix Electronics and suitable for industrial sensors, factory automation I/O modules, and process control transmitters requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for L6362A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer markets.

The L6362A belongs to ST's Industrial Interface & Power Driver product line, engineered specifically for robust, compact IO-Link sensor and actuator solutions operating in harsh 24 V factory environments.

FAQ

What IO-Link communication modes does the L6362A support?

The L6362A supports all three standard IO-Link communication modes: COM1 (4.8 kbaud), COM2 (38.4 kbaud), and COM3 (230.4 kbaud), fully compliant with PHY2 (3-wire physical layer). It decodes I/Q line signals using internally calibrated thresholds and provides corresponding logic-level output on the OUTI/Q pin for MCU interpretation.

How is output stage topology selected-high-side, low-side, or push-pull?

Topology is configured via IN1, IN2, and EN/DIAG pin logic states per Table 14 in the datasheet. High-side uses IN1 control with OUTL unconnected; low-side uses IN1 with OUTH unconnected; push-pull requires both outputs wired together and uses IN2 with dead-time management. SEL pin sets VDD voltage but does not affect topology.

Does the L6362A require external components for basic IO-Link operation?

Yes-minimum external components include: 1 µF capacitor on VCC, 47–68 nF on VDD, 22 kΩ pull-up on I/Q line (for COM modes), and appropriate series resistors on EN/DIAG and OL (open-drain outputs). No external flyback diodes or snubbers are needed due to integrated active clamp and protection.

What diagnostic functions are available and how are they accessed?

Two dedicated diagnostic pins are provided: EN/DIAG (open-drain, active-low on any fault) and OL (open-drain, active-low only on overload). Both can drive MCU GPIOs directly. Fault type is distinguished by timing behavior and combination-e.g., sustained OL low indicates overload, while brief EN/DIAG low followed by recovery suggests transient overtemperature.