MAX14842

6-Channel, Digital Ground-Level Translator

High-Channel-Count, Ground-Level Translator in Tiny (4mm × 4mm) TQFN Minimizes Footprint and Reduces BOM Components


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Description

The MAX14842 translates digital signals between two domains that have different ground references of up to 72V. The device features six communication channels, two bidirectional and four unidirectional. Two of the four unidirectional channels go in each direction. The device is powered by two supply voltages that independently define the logic levels of each ground domain.

The MAX14842 supports guaranteed data rates up to 30Mbps on the four unidirectional channels and up to 2Mbps on the two bidirectional channels. The bidirectional channels have open-drain outputs, making them suitable for I²C signals. I²C clock stretching and hot swapping is supported on the bidirectional channels.

Undervoltage lockout ensures that the output pins have a defined behavior during power-up, power-down, and during supply transients. For proper operation, ensure that 0V ≤ (VGNDB - VGNDA) ≤ 72V. Note that GNDB must be greater than or equal to GNDA.

The MAX14842 is available in a 16-pin TQFN package and is specified over the -40°C to +125°C automotive temperature range.

Key Features

  • Supports Ground Differences Up to +72V
  • Four Unidirectional Channels: Two In/Two Out
  • Two Bidirectional Channels
  • I²C Compatible
  • Supports I²C Clock Stretching
  • 30Mbps Unidirectional Data Rates
  • 2Mbps Bidirectional Data Rates
  • +3.3V to +5V Level Translation
  • Undervoltage Lockout
  • 4mm x 4mm 16-Pin TQFN Package
  • -40°C to +125°C Automotive Temperature Range

Applications/Uses

  • Battery Management
  • I2C, SMBus™, SPI™, and MICROWIRE™ Signals
  • Medical Systems
  • Power-Over-Ethernet
  • Telecommunication Systems

See parametric specs for Digital Isolators (75)


Part NumberChannelsUni-directional InputsBi-directional ChannelsUni-directional Data Rate
(Mbps)
Bi-directional Data Rate
(Mbps)
Side Amaxmax
MAX14842 642502

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.
Product Reliability Reports: MAX14842.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.

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