LTM2882

PRODUCTION

Dual Isolated RS232 μModule Transceiver + Power

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Overview

  • RS232 Transceiver: 2500VRMS for 1 Minute
  • UL-CSA Recognized File #E151738
  • CSA Component Acceptance Notice 5A
  • Isolated DC Power: 5V at Up to 200mA
  • No External Components Required
  • 1.62V to 5.5V Logic Supply for Flexible Digital Interfacing
  • High Speed Operation
    • 1Mbps for 250pF/3kΩ Load
    • 250kbps for 1nF/3kΩ Load
    • 100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load
  • 3.3V (LTM2882-3) or 5V (LTM2882-5) Operation
  • No Damage or Latchup to ±10kV HBM ESD on Isolated RS232 Interface or Across Isolation Barrier
  • High Common Mode Transient Immunity: 30kV/μs
  • Maximum Continuous Working Voltage: 560VPEAK
  • True RS232 Compliant Output Levels
  • 15mm × 11.25mm BGA and LGA Packages

The LTM2882 is a complete galvanically isolated dual RS232 μModule® (micromodule) transceiver. No external components are required. A single 3.3V or 5V supply powers both sides of the interface through an integrated, isolated DC/DC converter. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

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 with different grounds, allowing for large common mode voltages. Uninterrupted communication is guaranteed for common mode transients greater than 30kV/μs.

This part is compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. An auxiliary isolated digital channel is available. This channel allows configuration for half-duplex operation by controlling the DE pin.

Enhanced ESD protection allows this part to withstand up to ±10kV (human body model) on the transceiver interface pins to isolated supplies and across the isolation barrier to logic supplies without latch-up or damage.

Applications

  • Isolated RS232 Interface
  • Industrial Communication
  • Test and Measurement Equipment
  • Breaking RS232 Ground Loops

LTM2882
Dual Isolated RS232 μModule Transceiver + Power
Isolated Dual RS232 μModule Transceiver 1Mbps Operation Product Package 1
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 1
LTM2883 PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
Switching Regulators & Controllers 2
LTM8048 RECOMMENDED FOR NEW DESIGNS 3.1VIN to 32VIN Isolated μModule (Power Module) DC/DC Converter with LDO Post Regulator
LTM8047 RECOMMENDED FOR NEW DESIGNS 3.1VIN to 32VIN Isolated μModule (Power Module) DC/DC Converter
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Evaluation Kits

eval board
DC1747A-B

LTM2882-5 Low EMI Test Board (For EMI Evaluation Purposes Only, No VL & No GPIO)

Product Details

DC1747A-B: Demo Board for LTM2882 Dual Isolated RS232 µModule Transceiver + Power.

eval board
DC1554A-A

LTM2882-3 RS232 µModule Isolator Demo Board (3.3V Supply)

Product Details

DC1554A-A: Demo Board for the LTM2882 Dual Isolated RS232 µModule Transceiver + Power.


 


eval board
DC1747A-A

LTM2882-3 Low EMI Test Board (For EMI Evaluation Purposes Only, No VL & No GPIO)

Product Details

DC1747A-A: Demo Board for LTM2882 Dual Isolated RS232 µModule Transceiver + Power.

eval board
DC1554A-B

LTM2882-5 RS232 µModule Isolator Demo Board (5.0V Supply)

Product Details

DC1554A-B: Demo Board for the LTM2882 Dual Isolated RS232 µModule Transceiver + Power.


 


DC1747A-B
LTM2882-5 Low EMI Test Board (For EMI Evaluation Purposes Only, No VL & No GPIO)
DC1747A-B Demo Board DC1747A-B Demo Board DC1747A-B Demo Board DC1747A-B Demo Board DC1747A-B - Schematic
DC1554A-A
LTM2882-3 RS232 µModule Isolator Demo Board (3.3V Supply)
DC1554A-A Demo Board DC1554A-A Demo Board DC1554A-A Demo Board DC1554A-A Demo Board DC1554A-A Demo Board DC1554A-A - Schematic
DC1747A-A
LTM2882-3 Low EMI Test Board (For EMI Evaluation Purposes Only, No VL & No GPIO)
DC1747A-A Demo Board DC1747A-A Demo Board DC1747A-A Demo Board DC1747A-A Demo Board DC1747A-B - Schematic
DC1554A-B
LTM2882-5 RS232 µModule Isolator Demo Board (5.0V Supply)
DC1554A-B Demo Board DC1554A-B Demo Board DC1554A-B Demo Board DC1554A-B Demo Board DC1554A-A - Schematic

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