Overview
The ISO7641FMDWR is a low-power quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO764xFM family, known for its high-speed and low-power consumption. The ISO7641FMDWR features three forward and one reverse-direction isolation channels, making it suitable for a variety of applications requiring signal isolation and protection.
The device operates over a wide temperature range of –40°C to 125°C and supports supply voltages of 2.7 V, 3.3 V, and 5 V. It is packaged in a wide body SOIC-16 package, ensuring robust performance and reliability.
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 | |
| High-level Output Voltage (VOH) | IOH = –20 μA, VCC1 and VCC2 at 3.3 V ±10% | –0.1 | 3.3 | V | |
| Low-level Output Voltage (VOL) | IOL = 20 μA, VCC1 and VCC2 at 3.3 V ±10% | 0 | 0.1 | V |
Key Features
- Low power consumption with typical ICC per channel.
- High-speed operation with data rates up to 150 Mbps.
- Low propagation delay of 7 ns typical.
- Output defaults to low-state in fail-safe mode.
- Wide temperature range: –40°C to 125°C.
- 50 kV/μs transient immunity.
- Long life with SiO2 isolation barrier.
- Operates from 2.7 V, 3.3 V, and 5 V supply and logic levels.
- Wide body SOIC-16 package.
- Safety and regulatory approvals including UL 1577 and IEC 60601-1 medical standard.
Applications
- Industrial control systems and automation.
- Medical devices requiring isolation for safety and compliance.
- Automotive systems where high-speed data transfer and isolation are critical.
- Power supplies and DC-DC converters needing isolated feedback loops.
- Communication systems, such as in RS-232, RS-485, and CAN bus interfaces.
Q & A
- What is the maximum junction temperature for the ISO7641FMDWR?
The maximum junction temperature is 150°C.
- What are the supported supply voltages for this device?
The device operates from 2.7 V, 3.3 V, and 5 V supply and logic levels.
- What is the typical propagation delay of the ISO7641FMDWR?
The typical propagation delay is 7 ns.
- Does the output default to a specific state in fail-safe conditions?
Yes, the output defaults to a low-state in fail-safe mode.
- What is the common-mode transient immunity of this device?
The common-mode transient immunity is 50 kV/μs typical.
- What are the safety and regulatory approvals for the ISO7641FMDWR?
The device has approvals including UL 1577 and IEC 60601-1 medical standard.
- What is the maximum data rate supported by the ISO7641FMDWR?
The device supports data rates up to 150 Mbps.
- What type of isolation barrier is used in this device?
The device uses a silicon dioxide (SiO2) isolation barrier.
- What is the package type for the ISO7641FMDWR?
The device is packaged in a wide body SOIC-16 package.
- What are some typical applications for the ISO7641FMDWR?
Typical applications include industrial control systems, medical devices, automotive systems, power supplies, and communication systems.
