MAX8533EUB+

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Maxim Integrated MAX8533EUB+ is a hot-swapping controller. It is designed to simplify the complex process of managing hot insertion and hot removal applications. This device is widely used in power electronic applications where additional control over the insertion and removal of external components is needed or desired. It provides a wide array of features and reduces board design complexity by integrating all of the necessary functions into a single device.

Application fields

The MAX8533EUB+ hot-swapping controller is applicable to a wide range of applications, including servers, routers, distributed power systems, personal computing, image processing, and so on. Many industrial applications such as automated assembly lines and data centers can benefit from its automatic current and voltage control. The device is compliant with the PCI Express Card Electromechanical Specification Revision 2.0 and Extended Partition Table (EPT) requirements, allowing for simple and cost effective hot-swapping connections for I/O cards and on-board connectors. The hot-swapping controller also simplifies board design by eliminating the need for some additional components, such as mechanical relays, switches, and circuitry.

Working principle

The MAX8533EUB+ works by monitoring the insertion/removal current of the device. When the current exceeds the threshold, it triggers the hot insertion/removal process and automatically controls the current and voltage levels throughout the process. The device features a built in over-current protection (OCP) function, which prevents circuit damage in case of excessive current. The over-current protection feature enables the user to continuously monitor load current, and the device can be factory configured with an OCP level up to 40A. The MAX8533EUB+ also provides power sequencing, voltage tracking, and dual over-voltage protection (OVP) to protect against important power events. It has a programmable delay timer to enable soft start/stop, and can be programmed with a “fail safe” ON or OFF detection. Finally, it has an auto-retry feature that can attempt a repeated hot-swap operation if the first one failed, ensuring a stable connection in critical applications.

The MAX8533EUB+ hot-swapping controller is a highly efficient and cost effective solution for managing power events in hot insertion and hot removal applications. It integrates all the necessary functions into a single device, eliminating the need for additional components, such as mechanical relays and switches, that are typically required in such applications. This device is suitable for PCI Express Card Electromechanical Specification Revision 2.0 and EPT compliant systems, and is an ideal solution for power electronic applications such as servers, routers, distributed power systems, personal computing, and image processing.

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