MAX5980EVKIT#

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MAX5980EVKIT evaluation board from Maxim Integrated provides an opportunity to evaluate the MAX5980, a USB-powered buck controller integrated circuit (IC). The evaluation board includes an adjustable output voltage regulator that can be set for any voltage between 0.8V and 5.5V, and it also features an adjustable switching frequency range of 80kHz to 550kHz. This board has a variety of applications and can be used to demonstrate and evaluate a wide range of technology. In this article, we will explore the MAX5980EVKIT\'s application field and its working principle.

The MAX5980EVKIT has the following applications:

• Smartphone charger
• Portable medical devices
• LCD display adapters
• Automotive infotainment systems
• Wireless communications

To understand the working principle of the evaluation board, we first need to look at the operating environment of the MAX5980. The MAX5980 is a high-performance, low-current switching regulator, specifically designed for low voltage applications such as USB-powered portable systems. It offers a wide range of features, including an input voltage range of up to 6V, low power operation, adjustable output voltage, and integrated fault protection. The MAX5980EVKIT builds on these features and is designed to enable evaluation of a range of voltage and current conditions.

The board has two main components: the main board and the Linear Technology LT1761C IC. The main board includes the actual MAX5980 IC and a set of components used to provide control and drive signals to the IC. These include a pair of bias-net liners, a user adjustable potentiometer, and a startup capacitor for the IC. The LT1761C is DIP-14 IC that is used to provide the necessary voltage regulation for the board. The output of the LT1761C is adjustable and is used to generate the desired voltage output for the MAX5980 in order to calibrate the system. The LT1761C also provides an overvoltage protection circuit which helps to ensure the correct operation of the IC.

The main board contains a pair of step-up converters, also called buck regulators, which are used to convert the incoming USB voltage into the desired output voltage of the system. The input USB voltage is connected to the controller IC through a pair of USB connectors at the bottom of the board. The USB voltage is configured by a pair of power switches located on the main board. The MAX5980 is used to regulate the switching of the power switches and provide the step-up conversion necessary to produce the desired output voltage.

The MAX5980 is controlled by the LT1761C via a three-wire interface called SPI (Serial Peripheral Interface). This interface provides the communication between the two ICs, allowing the LT1761C to adjust the output voltage of the MAX5980. The SPI pins of the MAX5980 are also controlled by the LT1761C to set the switching frequency of the MAX5980 as required, allowing the system to achieve a maximum switching frequency of 550 kHz.

The MAX5980EVKIT board also includes a variety of protection features. These include over-voltage, under-voltage, and over-current protection circuits, all of which help to protect both the board and the system from damage in high-voltage applications.

To test the MAX5980EVKIT, the board is connected to the USB power source and the LT1761C is adjusted to set the desired voltage output. The board then supplies the voltage over the USB to the connected device. The MAX5980EVKIT then monitors the output voltage and current to ensure that the voltage is correct and that there are no problems with the system.

In summary, the MAX5980EVKIT from Maxim Integrated is a versatile evaluation board designed for use with the MAX5980 low voltage buck regulator. It features adjustable output voltage regulation and has a variety of applications. The board includes an adjustable switching frequency that can be set from 80 kHz to 550 kHz, and it also features a range of protection circuits. The board provides an ideal way to demonstrate and evaluate a wide range of low voltage applications.

The specific data is subject to PDF, and the above content is for reference