LTM2889 - Isolated CAN FD µModule Transceiver and Power

Features

  • Isolated 4Mbps CAN FD Transceiver
  • 2500VRMS for 1 Minute Per UL1577
  • Isolated DC Power: 5V (Adjustable to 3.3V)
  • Up to 150mA Available Isolated Power Output
  • 3.3V or 5V Input Supply Voltage Options
  • UL-CSA Recognition Pending
  • No External Components Required
  • High Bus Fault Voltage Tolerance: ±60V
  • Low Power OFF Mode: <1µA Typical
  • High Common Mode Transient Immunity: 30kV/µs
  • Variable Slew Rate Driver with Active Symmetry Control and SPLIT Pin for Low EME
  • Fully ISO 11898-2 and CAN FD Compliant
  • Ideal Passive Behavior to CAN Bus with Supply Off
  • Transmit Data (TXD) Dominant Timeout Function
  • High ESD: ±25kV CANH, CANL to GND2 and VCC2; ±10kV Across Isolation Barrier
  • Ambient Operation from –40°C to 125°C
  • Low Profile 15mm × 11.25mm BGA Package

Typical Application

LTM2889 Typical Application
LTM2889 Typical Application

Description

The LTM2889 is a complete galvanically-isolated Controller Area Network (CAN) μModule® (micromodule) transceiver. No external components are required – a single supply powers both sides of the interface through an integrated, isolated DC/DC converter. Separate versions are available for 3.3V and 5V power supplies. The dual voltage CAN transceiver and the adjustable regulator allow 3.3V or 5V isolated power with either the 3.3V or 5V version.

Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the line transceiver and the logic interface. This device is ideal for systems where the ground loop is broken, allowing for large common mode voltage ranges. Communication remains uninterrupted for common mode transients greater than 30kV/μs.

Supports up to 4Mbps CAN with Flexible Data Rate (CAN FD). A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

Enhanced ESD protection allows this part to withstand up to ±25kV Human Body Model (HBM) on the transceiver interface pins and ±10kV HBM across the isolation barrier without latchup or damage.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTM2889CY-3#PBF 15mm x 11.25mm x 3.42mm BGA BGA C 05-08-1851 Yes
LTM2889CY-5#PBF 15mm x 11.25mm x 3.42mm BGA BGA C 05-08-1851 Yes
LTM2889HY-3#PBF 15mm x 11.25mm x 3.42mm BGA BGA H 05-08-1851 Yes
LTM2889HY-5#PBF 15mm x 11.25mm x 3.42mm BGA BGA H 05-08-1851 Yes
LTM2889IY-3#PBF 15mm x 11.25mm x 3.42mm BGA BGA I 05-08-1851 Yes
LTM2889IY-5#PBF 15mm x 11.25mm x 3.42mm BGA BGA I 05-08-1851 Yes


LTM2889 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTM2889CY-3#PBF 15mm x 11.25mm x 3.42mm BGA C $14.23 $9.96 Yes
LTM2889CY-5#PBF 15mm x 11.25mm x 3.42mm BGA C $14.23 $9.96 Yes
LTM2889HY-3#PBF 15mm x 11.25mm x 3.42mm BGA H $18.78 $13.15 Yes
LTM2889HY-5#PBF 15mm x 11.25mm x 3.42mm BGA H $18.78 $13.15 Yes
LTM2889IY-3#PBF 15mm x 11.25mm x 3.42mm BGA I $15.65 $10.96 Yes
LTM2889IY-5#PBF 15mm x 11.25mm x 3.42mm BGA I $15.65 $10.96 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1903A-A LTM2889-3 Demo Board | Isolated CAN uModule Transceiver (3.3V Supply) $75.00
DC1903A-B LTM2889-5 Demo Board | Isolated CAN uModule Transceiver (5.0V Supply) $75.00
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Click here to view our complete list of demo boards

Applications

  • Isolated CAN Bus Interface
  • Industrial Networks
  • DeviceNet Applications

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Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

  • LTspice IV - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
  • LTpowerCAD - A complete power supply selection, synthesis and design tool
  • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
  • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
  • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
  • And More!

Technical Support