Overview
The ISO7641FMDW is a low-power, quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO764x series, known for its high-speed data transfer capabilities and robust isolation features. The ISO7641FMDW specifically offers three forward and one reverse direction channel, making it versatile for various isolation requirements. It operates with low power consumption and supports a wide range of supply voltages (2.7 V, 3.3 V, and 5 V), making it suitable for diverse applications.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Supply Voltage (VCC1, VCC2) | -0.5 | 6 | V | ||
| Input Voltage (INx, OUTx, ENx) | -0.5 | VCC + 0.5 | V | ||
| Output Current (IO) | -15 | 15 | mA | ||
| Maximum Junction Temperature (TJ) | 150 | °C | |||
| Storage Temperature (Tstg) | -65 | 150 | °C | ||
| Propagation Delay Time (tPLH, tPHL) | VCC1 and VCC2 at 3.3 V ±10% | 5 | 8 | 16 | ns |
| Common-mode Transient Immunity (CMTI) | VI = VCC or 0 V | 25 | 50 | kV/μs | |
| Isolation Voltage | UL 1577 and VDE | 6000 VPK / 4243 VRMS for 1 minute |
Key Features
- Low Power Consumption: Typical ICC per channel, with low current draw in both active and disabled states.
- High-Speed Data Transfer: Capable of 150 Mbps data rate with fast propagation delays.
- Robust Isolation: Isolation up to 6 kVPK for 1 minute per UL and VDE, and 6000 VPK / 4243 VRMS for 1 minute per UL 1577.
- 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 common-mode transient immunity.
- Multiple Supply Voltages: Operates from 2.7 V, 3.3 V, and 5 V supply voltages.
- Wide Body SOIC-16 Package: Compact and versatile packaging.
Applications
- Industrial Automation: Used in control systems, sensors, and actuators to ensure reliable and isolated data transfer.
- Medical Devices: Compliant with medical standards such as IEC 60601-1, making it suitable for medical equipment.
- Automotive Systems: Applied in automotive control units and safety systems where high isolation and reliability are critical.
- Power Supplies and DC-DC Converters: Used to isolate feedback signals and ensure safe operation.
- Test and Measurement Equipment: Utilized in various test and measurement devices requiring isolated data channels.
Q & A
- What is the maximum isolation voltage of the ISO7641FMDW?
The ISO7641FMDW has an isolation voltage of up to 6000 VPK / 4243 VRMS for 1 minute per UL 1577 and VDE standards.
- What are the supported supply voltages for the ISO7641FMDW?
The device operates from 2.7 V, 3.3 V, and 5 V supply voltages.
- What is the typical propagation delay of the ISO7641FMDW?
The typical propagation delay is 8 ns.
- Does the ISO7641FMDW have fail-safe output functionality?
- What is the maximum data rate supported by the ISO7641FMDW?
The device supports up to 150 Mbps data rate.
- What is the operating temperature range of the ISO7641FMDW?
The device operates from –40°C to 125°C.
- Is the ISO7641FMDW compliant with medical standards?
- What type of packaging does the ISO7641FMDW come in?
The device comes in a wide body SOIC-16 package.
- What is the common-mode transient immunity of the ISO7641FMDW?
The device has a typical common-mode transient immunity of 50 kV/μs.
- How many channels does the ISO7641FMDW have, and what are their directions?
The ISO7641FMDW has three forward and one reverse direction channel.
