ISL6218CVZ

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ISL6218CVZ Application Field and Working Principle

The ISL6218CVZ is a high performance three-phase buck controller with integrated advanced power management features for improved current sharing. It is specifically designed for advanced point-of-load controllers that require optimal performance and small package size.

The ISL6218CVZ is ideal for applications in networking, storage, automotive and industrial systems. It is capable of delivering up to 20A continuous output current from each phase in air-cooled systems. It is also suited for DC/DC buck converters used in a wide variety of power applications.

Features

• 3-phase buck controller
• Up to 20A continuous output current per phase
• Integrated advanced power management features
• Programmable switching frequency
• Voltage controlled current sharing
• Dual voltage comparators
• Open loop fault protection
• Integrated UVLO

Applications

• Networking
• Storage
• Automotive
• Industrial
• DC/DC buck converters

Working Principle of ISL6218CVZ

The ISL6218CVZ is based on the voltage-mode, three-phase buck control architecture. The controller offers programmable switching frequency, current sensing, voltage sensing and current sharing between the three channels.

The ISL6218CVZ has a voltage controlled current sharing circuit that can be used to ensure that the currents in the three channels are balanced. This feature makes it an ideal choice for applications where power dissipation must be precisely and accurately managed.

The ISL6218CVZ also has an integrated UVLO circuit, which ensures that the input voltage is above the minimum level before the controller starts operation. It also has an open loop fault protection circuit, which shuts down all the channels in the event of a fault condition.

The ISL6218CVZ also features a dual voltage comparator and overcurrent protection, a built-in soft-start circuit and a programmable current limit feature. All these features make the ISL6218CVZ an ideal choice for high performance, point-of-load controllers.

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