Overview
The ISO7731FDBQR is a high-performance, triple-channel digital isolator produced by Texas Instruments. This device is part of the ISO773x family, which is designed to provide robust isolation and high electromagnetic immunity. The ISO7731FDBQR features a 100Mbps data rate and is suitable for applications requiring high-speed data transfer with reliable isolation.
The device comes in a 16-pin SSOP (DBQ) package and offers up to 3000 VRMS isolation rating, making it ideal for use in various industrial and medical environments. It is certified under several international standards, including UL 1577, IEC 61010-1, IEC 62368-1, IEC60601-1, and GB 4943.1, ensuring compliance with safety and performance requirements.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SSOP (DBQ) | 16-pin |
| Body Size | 4.90 mm × 3.90 mm | |
| Isolation Rating | UL 1577 VRMS | 3000 VRMS |
| Data Rate | Maximum data rate | 100 Mbps |
| Supply Voltage | VCC1 and VCC2 | 2.25 V to 5.5 VDC |
| Enable Pins | Output enable pins | EN1 and EN2 |
| Thermal Resistance | Junction-to-ambient thermal resistance (RθJA) | 109.0 °C/W |
| Maximum Safety Temperature | TJ and TS | 150 °C |
| Certifications | UL 1577, IEC 61010-1, IEC 62368-1, IEC60601-1, GB 4943.1 |
Key Features
- High-performance, triple-channel digital isolator with 100Mbps data rate.
- Robust isolation barrier with up to 3000 VRMS isolation rating (DBQ package) and >30-year projected lifetime at 1500 VRMS working voltage.
- Double capacitive silicon dioxide (SiO2) insulation barrier for each isolation channel.
- Enable pins (EN1 and EN2) to put outputs in high impedance for multi-master driving applications and to reduce power consumption.
- High electromagnetic immunity and low emissions at low power consumption.
- Certified under various international safety standards, including UL 1577, IEC 61010-1, IEC 62368-1, IEC60601-1, and GB 4943.1.
- Available in 16-pin SSOP (DBQ) package.
Applications
- Industrial automation
- Motor control
- Power supplies
- Solar inverters
- Medical equipment
The ISO7731FDBQR is particularly useful in environments where high-speed data transfer and robust isolation are critical to prevent noise currents and ensure system reliability.
Q & A
- What is the maximum data rate of the ISO7731FDBQR?
The maximum data rate of the ISO7731FDBQR is 100 Mbps.
- What is the isolation rating of the ISO7731FDBQR in the DBQ package?
The isolation rating of the ISO7731FDBQR in the DBQ package is up to 3000 VRMS.
- What are the supply voltage ranges for the ISO7731FDBQR?
The supply voltage ranges for the ISO7731FDBQR are 2.25 V to 5.5 VDC for both VCC1 and VCC2.
- What certifications does the ISO7731FDBQR hold?
The ISO7731FDBQR is certified under UL 1577, IEC 61010-1, IEC 62368-1, IEC60601-1, and GB 4943.1.
- What is the purpose of the enable pins (EN1 and EN2) on the ISO7731FDBQR?
The enable pins (EN1 and EN2) can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption.
- What is the maximum safety temperature for the ISO7731FDBQR?
The maximum safety temperature for the ISO7731FDBQR is 150 °C.
- What type of insulation barrier does the ISO7731FDBQR use?
The ISO7731FDBQR uses a double capacitive silicon dioxide (SiO2) insulation barrier for each isolation channel.
- What are some common applications for the ISO7731FDBQR?
Common applications include industrial automation, motor control, power supplies, solar inverters, and medical equipment.
- What is the projected lifetime of the isolation barrier at 1500 VRMS working voltage?
The projected lifetime of the isolation barrier at 1500 VRMS working voltage is >30 years.
- What is the junction-to-ambient thermal resistance (RθJA) for the DBQ package?
The junction-to-ambient thermal resistance (RθJA) for the DBQ package is 109.0 °C/W.
