Overview
The ISO7641FCDW is a quad-channel digital isolator produced by Texas Instruments. This device is designed to provide robust isolation between different parts of a system, ensuring that noise currents and electrical interference do not affect sensitive circuitry. It features a 16-pin SOIC (DW) package and supports data transfer rates up to 25 Mbps. The isolator is suitable for use in various applications requiring high isolation and low power consumption.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Supply Voltage (VCC1, VCC2) | V | -0.5 | 6 | |
| Input Voltage (INx, OUTx, ENx) | V | -0.5 | 6 | |
| Output Current (IO) | mA | ±15 | ||
| Maximum Junction Temperature (TJ) | °C | 150 | ||
| Storage Temperature (TSTG) | °C | -65 | 150 | |
| High-Level Output Voltage (VOH) at VCCO = 5V, IOH = -4mA | V | 0.8 | 4.8 | |
| Low-Level Output Voltage (VOL) at VCCO = 5V, IOL = 4mA | V | 0.2 | 0.4 | |
| Input Threshold Voltage Hysteresis (VI(HYS)) | mV | 450 | ||
| Common-Mode Transient Immunity (CMTI) | kV/μs | 25 | 75 |
Key Features
- Quad-Channel Isolation: The ISO7641FCDW provides four isolated channels, enabling the separation of input and output signals across different voltage domains.
- High Data Rate: Supports data transfer rates up to 25 Mbps, making it suitable for high-speed applications.
- Low Power Consumption: Operates with low current consumption, typically around 1.2 to 6 mA per channel depending on the operating conditions.
- Multiple Supply Voltages: Compatible with 2.7-V, 3.3-V, and 5-V supplies, offering flexibility in system design.
- TTL Input Thresholds: Inputs are TTL-compatible, ensuring compatibility with a wide range of logic circuits.
- High ESD Protection: Provides robust electrostatic discharge (ESD) protection with ratings up to ±4000 V HBM and ±1500 V CDM.
- Common-Mode Transient Immunity: Offers high common-mode transient immunity, ensuring reliable operation in noisy environments.
Applications
- Industrial Control Systems: Used in industrial automation and control systems to isolate signals and protect sensitive electronics from noise and interference.
- Medical Devices: Suitable for medical devices where isolation is critical to ensure patient safety and prevent electrical shock.
- Automotive Systems: Applied in automotive systems for isolating signals between different voltage domains and protecting against electrical noise.
- Data Acquisition Systems: Used in data acquisition systems to isolate analog and digital signals, ensuring accurate and reliable data transfer.
- Power Supplies and DC-DC Converters: Used to isolate feedback signals in power supplies and DC-DC converters, enhancing system reliability and performance.
Q & A
- What is the maximum data transfer rate of the ISO7641FCDW?
The ISO7641FCDW supports data transfer rates up to 25 Mbps.
- What are the supported supply voltages for the ISO7641FCDW?
The device is compatible with 2.7-V, 3.3-V, and 5-V supplies.
- What is the typical current consumption of the ISO7641FCDW?
The typical current consumption varies depending on the operating conditions but is generally around 1.2 to 6 mA per channel.
- Does the ISO7641FCDW have ESD protection?
Yes, it provides robust ESD protection with ratings up to ±4000 V HBM and ±1500 V CDM.
- What is the common-mode transient immunity of the ISO7641FCDW?
The device offers high common-mode transient immunity up to 75 kV/μs.
- What package type is the ISO7641FCDW available in?
The ISO7641FCDW is available in a 16-pin SOIC (DW) package.
- Can the ISO7641FCDW be used in medical devices?
Yes, it is suitable for medical devices where isolation is critical to ensure patient safety and prevent electrical shock.
- What are the input and output voltage levels for the ISO7641FCDW?
The input and output voltage levels are TTL-compatible, with high-level output voltage typically around 4.8 V and low-level output voltage typically around 0.2 V at 5V supply.
- How many isolated channels does the ISO7641FCDW provide?
The ISO7641FCDW provides four isolated channels.
- What is the maximum junction temperature for the ISO7641FCDW?
The maximum junction temperature is 150°C.
