MAX14435

Four-Channel, Fast, Low-Power, 5kVRMS Digital Isolators

Industry's Fast Low Power Digital Isolators


Please check latest availability status for a specific part variant.

Description

The MAX14434–MAX14436 are the fastest, lowest power, 4-channel, digital galvanic isolators on the market today using Maxim’s proprietary process technology. These devices transfer digital signals between circuits with different power domains while using as little as 0.58mW per channel at 1Mbps with a 1.8V supply. The MAX14434/5/6 have an isolation rating of 5kVRMS for 60 seconds.

The MAX14434–MAX14436 family offers all three possible unidirectional channel configurations to accommodate any 4-channel design, including SPI, RS-232, RS-485, and digital I/O applications. Output enable for the A side of the MAX14435R/S/U/V is active-low, making them ideal for isolating a port on a shared SPI bus since the CS signal can directly enable the MISO signal on the isolator. All other devices in the family have the traditional active-high enable.

Devices are available with a maximum data rate of either 25Mbps or 200Mbps and with outputs that are either default-high or default-low. The default is the state the output assumes when the input is either not powered or is open-circuit. See the Ordering Information for suffixes associated with each option. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators.

The MAX14434–MAX14436 are available in a 16-pin wide-body SOIC package with 8mm of creepage and clearance. The package material has a minimum comparative tracking index (CTI) of 600V, which gives it a group 1 rating in creepage tables. All devices are rated for operation at ambient temperatures of -40°C to +125°C.

MAX14434, MAX14435, MAX14436: Functional Diagram MAX14434, MAX14435, MAX14436: Functional Diagram Enlarge+

Key Features

  • Robust Galvanic Isolation for Fast Digital Signals
    • 200Mbps Data Rate
    • Withstands 5kVRMS for 60s (VISO)
    • Continuously Withstands 848VRMS (VIOWM)
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2/50µs waveform
    • High CMTI (50kV/µs, Typical)
  • Low Power Consumption
    • 1.1mW per Channel at 1Mbps with VDD = 3.3V
    • 3.5mW per Channel at 100Mbps with VDD = 1.8V
  • Options to Support a Broad Range of Applications
    • 2 Data Rates (25Mbps, 200Mbps)
    • 3 Channel Direction Configurations
    • 2 Output Default States (High/Low)

Applications/Uses

  • Battery Management
  • Fieldbus Communications for Industrial Automation
  • General Isolation Application
  • Isolated RS-485/RS-422, CAN
  • Medical Systems
Part NumberChannelsUni-directional InputsUni-directional InputsUni-directional Data Rate
(Mbps)
Insulation RatingUni-directional Propagation
(ns)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
Side ASide BmaxmaxminmaxSee Notes
MAX14434F 44-2005000VRMS101.715.5-40 to +125
SOIC(N)/8
$3.18 @1k
MAX14435F 31
SOIC(N)/8
MAX14436F 22
SOIC(N)/8
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.


MAX14434FWEVKIT: Evaluation Kit for the MAX14434/MAX14435/MAX14436
MAX14435FWEVKIT: Evaluation Kit for the MAX14434/MAX14435/MAX14436
MAX14436FWEVKIT: Evaluation Kit for the MAX14434/MAX14435/MAX14436

Quality and Environmental Data

Request Reliability Report for: MAX14435 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX14435 IBIS Model
  • CAD Symbols and Footprints

  • MAX14435BAWE+
  • MAX14435BAWE+T
  • MAX14435CAWE+
  • MAX14435CAWE+T
  • MAX14435EAWE+
  • MAX14435EAWE+T
  • MAX14435FAWE+
  • MAX14435FAWE+T
  • MAX14435RAWE+
  • MAX14435RAWE+T
  • MAX14435SAWE+
  • MAX14435SAWE+T
  • MAX14435UAWE+
  • MAX14435UAWE+T
  • MAX14435VAWE+
  • MAX14435VAWE+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 >

     
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    Temperature:

    Related Resources


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