ISO1640DWR
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Texas Instruments ISO1640DWR

Manufacturer No:
ISO1640DWR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
HOT-SWAPPABLE, ROBUST-EMC BIDIRE
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The ISO1640DWR from Texas Instruments is a robust, hot-swappable, bidirectional I2C isolator designed to provide reliable and high-speed communication across isolated domains. This device is part of the ISO164x family, which integrates the necessary logic for bidirectional I2C communication, simplifying design and reducing footprint compared to optocoupler-based solutions. The ISO1640DWR supports bidirectional data transfer up to 1.7 MHz and features enhanced electromagnetic compatibility (EMC) and safety certifications.

Key Specifications

Parameter Min Max Unit
Supply Voltage (VCC1, VCC2) -0.5 6 V
Input/Output Voltage (SDA1, SCL1, SDA2, SCL2) -0.5 VCCX + 0.5 V
Input/Output Current (SDA1, SCL1) 0 20 mA
Input/Output Current (SDA2, SCL2) 0 100 mA
Maximum Junction Temperature (TJ) - 150 °C
Storage Temperature (Tstg) -65 150 °C
Operating Temperature Range -40 125 °C
Isolation Rating (UL 1577) - 5000 VRMS
Maximum Transient Isolation Voltage - 7071 VPK
Package Type - SOIC-16 (DW-16) -

Key Features

  • Robust isolated bidirectional I2C communication with hot-swappable capability
  • Bidirectional data transfer up to 1.7 MHz
  • Up to 3 additional unidirectional isolated GPIO channels supporting 50 Mbps speed
  • Robust isolation barrier with enhanced EMC:
    • >100-year projected lifetime at 450 VRMS working voltage (D-8) and 1500 VRMS working voltage (DW-16)
    • Up to 5000 VRMS isolation rating per UL1577
    • Up to 10 kV reinforced surge capability
    • ±100 kV/μs typical CMTI
    • ±8 kV IEC-ESD 61000-4-2 contact discharge protection across isolation barrier
  • Supply range: 3 V to 5.5 V (Side 1) and 2.25 V to 5.5 V (Side 2)
  • Open-drain outputs with 3.5-mA (Side 1) and 50-mA (Side 2) current-sink capability
  • Max capacitive load: 80 pF (Side 1) and 400 pF (Side 2)
  • Safety-related certifications: UL 1577, DIN VDE V 0884-11, IEC 62368-1, IEC 61010-1, IEC 60601-1, and GB4943.1-2011

Applications

  • Isolated I2C Buses
  • Isolated I2C and SPI Buses
  • SMBus and PMBus Interfaces
  • Power Over Ethernet (PoE)
  • Motor Control Systems
  • Battery Management

Q & A

  1. What is the primary function of the ISO1640DWR?

    The ISO1640DWR is a bidirectional I2C isolator designed to provide isolated communication between two domains while supporting hot-swappable operation.

  2. What is the maximum data transfer rate of the ISO1640DWR?

    The ISO1640DWR supports bidirectional data transfer up to 1.7 MHz.

  3. What are the supply voltage ranges for the ISO1640DWR?

    The supply voltage ranges are 3 V to 5.5 V for Side 1 and 2.25 V to 5.5 V for Side 2.

  4. What is the isolation rating of the ISO1640DWR?

    The ISO1640DWR has an isolation rating of up to 5000 VRMS per UL1577.

  5. What are the safety certifications for the ISO1640DWR?

    The device is certified according to UL 1577, DIN VDE V 0884-11, IEC 62368-1, IEC 61010-1, IEC 60601-1, and GB4943.1-2011.

  6. What is the maximum junction temperature for the ISO1640DWR?

    The maximum junction temperature is 150°C.

  7. What is the operating temperature range for the ISO1640DWR?

    The operating temperature range is -40°C to +125°C.

  8. What is the package type of the ISO1640DWR?

    The ISO1640DWR is available in a SOIC-16 (DW-16) package.

  9. Does the ISO1640DWR support additional GPIO channels?

    Yes, the ISO1640DWR can be part of a family that includes devices with up to 3 additional unidirectional isolated GPIO channels.

  10. What is the typical CMTI of the ISO1640DWR?

    The typical common-mode transient immunity (CMTI) is ±100 kV/μs.

Product Attributes

Technology:Capacitive Coupling
Type:I²C
Isolated Power:No
Number of Channels:2
Inputs - Side 1/Side 2:2/2
Channel Type:Bidirectional
Voltage - Isolation:5000Vrms
Common Mode Transient Immunity (Min):50kV/µs
Data Rate:- 
Propagation Delay tpLH / tpHL (Max):70ns, 88ns
Pulse Width Distortion (Max):45ns
Rise / Fall Time (Typ):24ns, 16ns
Voltage - Supply:3V ~ 5.5V
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:16-SOIC
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