Overview
The ISO7640FMDW is a quad-channel digital isolator produced by Texas Instruments. This device is designed to provide galvanic isolation up to 6 kV peak for 1 minute per UL and VDE standards, and it is certified up to 5 kV RMS reinforced isolation at a working voltage of 400 V RMS per end equipment standards EN/UL/CSA 60950-1 and 61010-1. The ISO7640FMDW features four forward-direction channels and is part of the M-Grade high-speed isolators, capable of a 150 Mbps data rate with fast propagation delays.
The device operates from 2.7-V, 3.3-V, and 5-V supply and logic levels, making it versatile for various applications. It includes a silicon dioxide (SiO2) insulation barrier to prevent noise currents from interfering with sensitive circuitry. The ISO7640FMDW is packaged in a wide body SOIC-16 package and is suitable for use in a wide temperature range from –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 16 | - |
| Operating Temperature Range | –40 to 125 | °C |
| Signaling Rate | 150 Mbps | - |
| Propagation Delay | 7 ns (Typical) | - |
| Supply Voltage (VCC1, VCC2) | 2.7 V, 3.3 V, 5 V | V |
| Input Current (High-Level) | 10 μA | - |
| Output Current (High-Level) | –4 mA | - |
| Maximum Junction Temperature | 150 | °C |
| Storage Temperature | –65 to 150 | °C |
| Transient Immunity | 50 kV/μs (Typical) | - |
| Isolation Voltage | 6 kV peak for 1 minute per UL and VDE | - |
Key Features
- High-Speed Data Rate: Capable of 150 Mbps data rate with fast propagation delays.
- Low Power Consumption: Typical ICC per channel is 2 mA at 25 Mbps for 3.3-V supplies.
- Fail-Safe Mode: Output defaults to low-state in fail-safe conditions.
- Wide Temperature Range: Operates from –40°C to 125°C.
- Transient Immunity: 50 kV/μs typical transient immunity.
- Long Life with SiO2 Isolation Barrier: Ensures long device life.
- Multi-Voltage Operation: Operates from 2.7-V, 3.3-V, and 5-V supply and logic levels.
- Safety and Regulatory Approvals: Certified to various safety standards including UL, VDE, CSA, IEC 60950-1, IEC 61010-1, and IEC 60601-1.
- Wide Body SOIC-16 Package: Compact and versatile packaging.
Applications
The ISO7640FMDW is suitable for a variety of applications where galvanic isolation is crucial, such as:
- Industrial Automation: To isolate control signals and prevent noise interference.
- Medical Devices: To ensure patient safety by isolating sensitive medical equipment.
- Automotive Systems: For isolating high-voltage and low-voltage systems.
- Power Supplies: To isolate the primary and secondary sides of power supplies.
- Data Acquisition Systems: To protect sensitive analog circuits from digital noise.
Q & A
- What is the maximum data rate of the ISO7640FMDW?
The ISO7640FMDW can handle a maximum data rate of 150 Mbps.
- What are the operating voltage ranges for the ISO7640FMDW?
The device operates from 2.7-V, 3.3-V, and 5-V supply and logic levels.
- What is the propagation delay of the ISO7640FMDW?
The typical propagation delay is 7 ns.
- What is the isolation voltage rating of the ISO7640FMDW?
The device is rated for 6 kV peak for 1 minute per UL and VDE standards.
- Does the ISO7640FMDW have fail-safe output?
Yes, the output defaults to a low-state in fail-safe conditions.
- What is the temperature range for the ISO7640FMDW?
The device operates from –40°C to 125°C.
- What kind of packaging does the ISO7640FMDW come in?
The device is packaged in a wide body SOIC-16 package.
- Is the ISO7640FMDW certified to any safety standards?
Yes, it is certified to various safety standards including UL, VDE, CSA, IEC 60950-1, IEC 61010-1, and IEC 60601-1.
- How does the ISO7640FMDW protect against transient immunity?
The device has a typical transient immunity of 50 kV/μs.
- What is the power consumption of the ISO7640FMDW?
The typical ICC per channel is 2 mA at 25 Mbps for 3.3-V supplies.
