MAX14937

Two Channel, 5kVRMS I2C Isolator

Industry's Most Flexible Digital Isolators Allow Direct Interfacing to Low-Voltage (2.5V) Devices


Please check latest availability status for a specific part variant.

Description

The MAX14937 is a two-channel, 5kVRMS I2C digital isolator utilizing Maxim’s proprietary process technology. For applications requiring 2.75kVRMS of isolation, see the MAX14933 data sheet. The device transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C.

The device offers two bidirectional, open-drain channels for applications, such as I2C, that require data to be transmitted in both directions on the same line.

The device features independent 2.25V to 5.5V supplies on each side of the isolator. The MAX14937 operates from DC to 1.7MHz and can be used in isolated I2C busses with clock stretching.

The MAX14937 is available in a 16-pin, wide-body (10.3mm x 7.5mm) SOIC package, and is rated for operation at ambient temperatures of -40°C to +125°C.

MAX14937: Functional Diagram MAX14937: Functional Diagram Enlarge+

Key Features

  • Robust Galvanic Isolation of Digital Signals
    • Withstands 5kVRMS for 60s (VISO)
    • Continuously Withstands 848VRMS (VIOWM)
    • 1200VPEAK Repetitive Peak Voltage (VIORM)
    • Withstands ±10kV Surge per IEC 61000-4-5
  • Interfaces Directly with Most Micros and FPGAs
    • Accepts 2.25V to 5.5V Supplies
    • Bidirectional Data Transfer from DC to 1.7MHz
  • Low Power Consumption
    • 5.3mA per Channel Typical at 1.7MHz

Applications/Uses

  • Battery Management
  • I²C, SMBus, PMBus™ Interfaces
  • Instrumentation
  • Power Supplies
Part NumberChannelsBi-directional ChannelsBi-directional Data Rate
(Mbps)
Insulation RatingBi-directional Propagation
(ns)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/Pins
maxmaxminmax
MAX14937 223.45000VRMS1152.255.5-40 to +125
SOIC HYBRID (W)/16
See All Digital Isolators (74)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX14933WEVKIT: Evaluation Kit for the MAX14933/MAX14937
MAX14937WEVKIT: Evaluation Kit for the MAX14933/MAX14937

Technical Documents

App Note 6896 Why Now is a Good Time to Secure Your Embedded Systems with SHA-3

Quality and Environmental Data

Product Reliability Reports: MAX14937.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Don’t Worry – Isolate All Those Digital Signals


CAD Symbols and Footprints

  • MAX14937AWE+
  • MAX14937AWE+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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:

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    Belle Isle 2020
    05/29/2020 - 05/31/2020, Detroit, MI
    2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.

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