DCDC isolated buck converter for isolated applications
Channel: STMicroelectronics
Date: 11/04/2024

Find out more information: http://www.st.com/buckregulators

Transcript:

At STMicroelectronics, we've been innovators in power management for decades, delivering reliable and efficient DCDC solutions to the industrial and automotive markets.

Today I’m going to focus on our most recent Iso-buck solutions, the L6983I and L6986I devices.

Let me first jump straight to our demo where we are showcasing a practical application using the L6986I evaluation board. We've created a 4-channel isolated power supply for gate drivers.
This innovative design uses a transformer with 4 secondary windings, enabling the generation of both positive and negative voltages from each individual channel.

To ensure precise monitoring, we're using the TSC1641 digital current sense IC. This powerful tool allows us to monitor the power, current, voltage and temperature as well.

As you can see, the L6983I and L6986I offer several compelling features!  They are designed specifically for the iso-buck topology.  We also have Primary output voltage regulation, and secondary output driven via transformer, eliminating the need for optocouplers.

Other great features include

• Wide input voltage range: up to 38 V.
• High efficiency and peak current mode architecture for optimal performance.
• AND Integrated safety featu res for robust operation.
 
These features make these iso-buck ideal for various applications, including:


• High-side gate drivers in high-power DC-DC converters.
• Inverters and motor drivers.
• Industrial power supplies and UPS.
• OBC (On-board charger) for HEV/EV.
 

We offer a range of tools to help you get started quickly.  We have evaluation boards to get hands-on experience with our devices and begin prototyping immediately.

And then we have our eDSIM simulation tools that enable you to virtually test your designs before committing to hardware, saving you time and resources.


For more info check out st.com/L6983I.  Talk to you soon