Texas Instruments

ISO7740FDBQR  

Digital Isolators

The ISO7740FDBQR is a high-performance, low-power, single-channel digital isolator from Texas Instruments. It is designed to provide reliable isolation in various applications, including industrial control systems, medical equipment, and power supplies.

Description:

The ISO7740FDBQR is a digital isolator that uses capacitive coupling to provide electrical isolation between the input and output sides of the device. It features a small, 6-pin QFN package, making it suitable for space-constrained applications.

Features:

1. Single-channel digital isolator
2. Low power consumption: 2.4mA typical (3.3V supply)
3. High-speed data transfer: up to 1Mbps
4. Wide operating temperature range: -40°C to +125°C
5. 2.5kVRMS isolation voltage
6. Small 6-pin QFN package
7. Available in a commercial-grade temperature range (0°C to +70°C)

Applications:

1. Industrial control systems: The ISO7740FDBQR can be used to isolate digital signals between controllers and actuators or sensors in industrial control systems.
2. Medical equipment: The isolator can provide electrical isolation in medical equipment, such as patient monitoring devices and diagnostic equipment, to ensure patient safety.
3. Power supplies: The ISO7740FDBQR can be used to isolate digital control signals in power supply designs, such as in switch-mode power supplies (SMPS) and battery chargers.
4. Data communication: The isolator can be used to provide isolation in data communication systems, such as RS-485 and I2C interfaces, to prevent ground loops and noise issues.
5. Automotive applications: The isolator can be used in automotive applications, such as battery management systems and in-vehicle networks, to provide isolation between different components.

In summary, the Texas Instruments ISO7740FDBQR is a reliable, low-power, single-channel digital isolator that offers high-speed data transfer and a wide operating temperature range. It is suitable for various applications, including industrial control systems, medical equipment, power supplies, data communication, and automotive applications.

ISO7740FDBQR Documents

Download datasheets and manufacturer documentation for ISO7740FDBQR

PCN Assembly/Origin :

ISO7YYY 15/May/2018      

Datasheets :

ISO7740 - ISO7742 Datasheet      

Design Resources :

Digital Isolator Design Guide       Polyphase Shunt Metrology with Isolated AFE Reference Design      

Other Related Documents :

Isolation Glossary      

HTML Datasheet :

ISO7740 - ISO7742 Datasheet      

PCN Design/Specification :

ISO774x 04/Apr/2023       ISO7740/ISO7741/ISO7742 06/Aug/2019