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6-Channel, Digital Ground-Level Translator

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

Product Details

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
Parametric specs for Digital Isolators
# Channels 6
Insulation Rating 72VDC
# Uni-directional Inputs (Side A) 4
# Bi-directional Channels 2
Uni-directional Data Rate (Mbps) (max) 50
Bi-directional Data Rate (Mbps) (max) 2
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN/16
Budgetary
Price (See Notes)
$2.66 @1k
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Parameters

Parametric specs for Digital Isolators
# Channels 6
Insulation Rating 72VDC
# Uni-directional Inputs (Side A) 4
# Bi-directional Channels 2
Uni-directional Data Rate (Mbps) (max) 50
Bi-directional Data Rate (Mbps) (max) 2
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN/16
Budgetary
Price (See Notes)
$2.66 @1k

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

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.

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal