STMicroelectronics

VN770K

VN770K Description

The VN770K is a half bridge driver IC designed for high performance and reliability in power management applications. Manufactured by STMicroelectronics, this device is part of the OMNIFET II™ and VIPower™ series, known for their robustness and efficiency. The VN770K features a half bridge output configuration with two channels, capable of handling inductive loads, making it ideal for applications such as DC motors, general-purpose power management, and relays.

The device operates within a supply voltage range of 5.5V to 36V and can handle a maximum load voltage of 40V. It offers a maximum on-state resistance (Rds On) of 160mOhm, ensuring minimal power loss and high efficiency. The VN770K is designed to provide a maximum output current of 9A per channel, making it suitable for demanding applications requiring high current handling.

VN770K Features

The VN770K incorporates several advanced features that enhance its performance and reliability. Key features include:

• Status Flag: Provides real-time monitoring of the device's operational status.
• Fault Protection: Comprehensive protection mechanisms such as current limiting, ESD protection, open load detection, over-temperature protection, over-voltage protection, short-circuit protection, and under-voltage lockout (UVLO) ensure the device's longevity and safety.
• Logic Interface: Simplifies integration with microcontrollers and other logic circuits.
• Surface Mount: The surface mount package type facilitates easy installation and integration into compact designs.
• Moisture Sensitivity Level (MSL) 3 (168 Hours): Ensures the device remains unaffected by moisture during manufacturing processes.
• REACH Unaffected: Complies with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulations.
• ROHS3 Compliant: Adheres to the Restriction of Hazardous Substances (RoHS) directive, ensuring environmental safety.

VN770K Applications

The VN770K is versatile and suitable for a wide range of applications, including:

• DC Motors: Ideal for driving and controlling DC motors in various industrial and consumer applications.
• General Purpose: Suitable for general-purpose power management tasks, providing reliable and efficient power control.
• Relays: Enhances the performance and reliability of relay circuits, ensuring smooth operation and long-term durability.

Conclusion of VN770K

The VN770K is a high-performance half bridge driver IC that offers a robust solution for power management applications. Its comprehensive feature set, including advanced fault protection mechanisms and a status flag, ensures reliable operation and easy monitoring. The device's ability to handle high current loads and its compatibility with various applications make it a versatile choice for engineers and designers. Despite being marked as obsolete, the VN770K remains a reliable option for existing designs and legacy systems, ensuring continued support and performance.