MAX3535E

+3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection


Please check latest availability status for a specific part variant.

Description

The MAX3535E/MXL1535E isolated RS-485/RS-422 full-duplex transceivers provide 2500VRMS of galvanic isolation between the RS-485/RS-422 side and the processor or control logic side. These devices allow fast, 1000kbps communication across an isolation barrier when the common-mode voltages (i.e., the ground potentials) on either side of the barrier are subject to large differences. Isolation is achieved through integrated high-voltage capacitors. The MAX3535E/MXL1535E also feature a 420kHz transformer driver that allows power transfer to the RS-485 side using an external transformer.

The MAX3535E/MXL1535E include one differential driver, one receiver, and internal circuitry to send the RS-485 signals and control signals across the isolation barrier (including the isolation capacitors). The MAX3535E/MXL1535E RS-485 receivers are 1/8 unit load, allowing up to 256 devices on the same bus.

The MAX3535E/MXL1535E feature true fail-safe circuitry. The driver outputs and the receiver inputs are protected from ±15kV electrostatic discharge (ESD) on the interface side, as specified in the Human Body Model (HBM).

The MAX3535E/MXL1535E feature driver slew-rate select that minimizes electromagnetic interference (EMI) and reduces reflections. The driver outputs are short-circuit and overvoltage protected. Other features are hot-swap capability and isolation-barrier fault detection.

The MAX3535E operates with a single +3V to +5.5V power supply. The improved secondary supply range of the MAX3535E allows the use of step-down transformers for +5V operation, resulting in considerable power savings. The MXL1535E operates with a single +4.5V to +5.5V power supply. The MXL1535E is a function-/pin-compatible improvement of the LTC1535. The MAX3535E/MXL1535E are available over the commercial 0°C to +70°C and extended -40°C to +85°C temperature ranges.
MAX3535E, MXL1535E: Typical Operating Circuit MAX3535E, MXL1535E: Typical Operating Circuit Enlarge+

Key Features

  • 2500VRMS RS-485 Bus Isolation Using On-Chip High-Voltage Capacitors
  • 1000kbps Full-Duplex RS-485/RS-422 Communication
  • +3V to +5.5V Power-Supply Voltage Range (MAX3535E)
  • +4.5V to +5.5V Power-Supply Voltage Range (MXL1535E)
  • 1/8 Unit Receiver Load, Allowing 256 Devices on Bus
  • ±15kV ESD Protection Using HBM
  • Pin-Selectable Slew-Rate Limiting Controls EMI
  • Hot-Swap-Protected Driver-Enable Input
  • Undervoltage Lockout
  • Isolation-Barrier Fault Detection
  • Short-Circuit Protected
  • Thermal Shutdown
  • Open-Line and Shorted-Line Fail-Safe Receiver Inputs

Applications/Uses

  • Industrial-Control Local Area Networks
  • Isolated RS-485 Systems
  • Systems with Large Common-Mode Voltages
  • Telecommunications Systems

MAX3535EEVKIT: MAX3535E Evaluation Kit

Tools & Models

  • MAX3535E IBIS Model
  • Product Reliability Reports: MAX3535E.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX33073E
    +3V to +5.5V, Polarity Invert RS-485 Half-Duplex Transceiver with ±65V Fault Protection, ±40V CMR, and ±40kV ESD

    • Integrated Protection for Robust Communication
    • High-Performance Transceiver Enables Flexible Designs

    MAX33072E
    +3V to +5.5V, Polarity Invert RS-485 Half-Duplex Transceiver with ±65V Fault Protection, ±40V CMR, and ±40kV ESD

    • Integrated Protection for Robust Communication
    • High-Performance Transceiver Enables Flexible Designs

    MAX22088
    Home Bus System (HBS) Compatible Transceiver

    • High Integration Reduces BOM and Footprint
    • Configurability Enables Flexible Design
    • Integrated Protection for Robust Communication

    MAX14829
    Low Power IO-Link Device Transceiver with Dual Drivers

    • Low Power Dissipation Reduces the Thermal Footprint for Small Sensors
    • High Configurability and Integration Reduce SKUs
    • Selectable Driver Integrated Protection Enables Robust Communication

    MAX33011E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX33014E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX33012E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX33015E
    +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

    • Integrated Protection Increases Robustness
    • Family Provides Flexible Design Options
    • Fault Detection and Reporting

    MAX22028
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22027F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22028F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22025F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22026
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22027
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22026F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22025, MAX22025F
    Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

    • High-Level Integration Reduces Overall Solution Size
    • Integrated Protection Ensures Robust Communication
    • Enables Flexible System Design

    MAX22520
    One-Time Programmable (OTP) Industrial Sensor Output Driver

    • High Configurability Supports a Wide Range of Sensor Designs
    • Robust Design for Harsh Industrial Environments
    • Small Form Factor for Compact Designs

    Type ID Title
    Evaluation Board5396MAX3535EEVKIT MAX3535E Evaluation Kit