Overview
The ISO7631FCDWR is a triple-channel digital isolator produced by Texas Instruments. This device is designed to provide robust galvanic isolation, ensuring the protection of sensitive circuitry from noise currents and ground disruptions. The ISO7631FCDWR features two forward-direction channels and one reverse-direction channel, with a fail-safe default low-state output configuration to enhance system reliability. It is part of the ISO7631F and ISO7641F family, which includes both M-Grade and C-Grade devices, catering to different application needs such as high-speed data transmission and low-power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | |
| Pins | 16 | |
| Operating Temperature Range | -40 to 125 | °C |
| Signaling Rate (M-Grade) | Up to 150 Mbps | |
| Signaling Rate (C-Grade) | Up to 25 Mbps | |
| Power Consumption (Typical, 3.3-V Supplies) | 1.5 mA at 10 Mbps | |
| Propagation Delay (Typical, M-Grade) | 7 ns | |
| Transient Immunity | 50 kV/µs | |
| Isolation Voltage | 2500 Vrms for 1 minute per UL 1577 | |
| Supply Voltage | 2.7-V, 3.3-V, and 5-V | |
| Input Tolerance | 5-V tolerant when supplied from 3.3-V or 2.7-V |
Key Features
- Robust design with integrated noise filter for noise-prone applications.
- Low power consumption, with typical ICC per channel of 1.5 mA at 10 Mbps for C-Grade devices.
- Extremely low ICC_disable for C-Grade devices.
- Low propagation delay of 7 ns typical for M-Grade devices.
- Output defaults to low-state in fail-safe mode.
- Wide temperature range operation from -40°C to 125°C.
- High transient immunity of 50 kV/µs.
- Long life with SiO2 isolation barrier.
- Operates from 2.7-V, 3.3-V, and 5-V supplies and logic levels.
- Wide body SOIC-16 package.
- Safety and regulatory approvals including UL 1577, VDE, CSA, IEC 60950-1, and IEC 61010-1.
Applications
The ISO7631FCDWR is ideal for various applications requiring robust galvanic isolation, including:
- Automotive systems to protect against transient voltage spikes and electromagnetic interference (EMI).
- Industrial control systems where noise suppression and reliable operation are critical.
- Medical devices that require high isolation and low noise interference.
- Communication systems needing high-speed data transmission with low power consumption.
- Any environment where sensitive circuitry needs protection from ground disruptions and noise currents.
Q & A
- What is the primary function of the ISO7631FCDWR?
The ISO7631FCDWR is a digital isolator that provides galvanic isolation to protect sensitive circuitry from noise currents and ground disruptions.
- What are the different grades of the ISO7631FCDWR?
The device comes in M-Grade and C-Grade. M-Grade devices are high-speed isolators capable of up to 150 Mbps data rates, while C-Grade devices are for lower-speed applications with low power consumption and integrated noise filters.
- What is the operating temperature range of the ISO7631FCDWR?
The device operates over a temperature range of -40°C to 125°C.
- What is the typical power consumption of the ISO7631FCDWR?
The typical power consumption is 1.5 mA at 10 Mbps for C-Grade devices.
- What is the transient immunity of the ISO7631FCDWR?
The device has a transient immunity of 50 kV/µs.
- What are the safety and regulatory approvals for the ISO7631FCDWR?
The device has approvals including UL 1577, VDE, CSA, IEC 60950-1, and IEC 61010-1.
- Can the ISO7631FCDWR operate with different supply voltages?
Yes, the device can operate from 2.7-V, 3.3-V, and 5-V supplies and logic levels.
- What is the package type of the ISO7631FCDWR?
The device comes in a SOIC-16 package.
- How many channels does the ISO7631FCDWR have?
The device has three channels, with two operating in the forward direction and one in the reverse direction.
- What is the fail-safe mode of the ISO7631FCDWR?
In fail-safe mode, the output defaults to a low-state.
