MAX14769EVKIT#

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MAX14769EVKIT is an evaluation and demonstration board and kit based on MAX14769, a 3A, 10V High-Side MOSFET Driver with Current and Temperature Shaping. It enables users to develop and evaluate a broad range of products including DC-DC converters, motor drivers, or 1-cell/2-cell lithium-ion (Li+) battery-charging applications. The associated application note (AN 149A) provides guidance for using the kit with battery-management systems.

Application Field

The MAX14769EVKIT# can be used for various application fields, like DC-DC converters, motor drivers, 1-cell/2-cell lithium-ion (Li+) battery-charging applications, AC-DC converters, solar cell applications, and other portable electronic equipment. As a High-side MOSFET Driver with current and temperature shaping, it provides an efficient power solution with low power loss for these applications. It can also be used for Intelligent Power Modules (IPMs) which need to have overcurrent and overvoltage protection for automotive applications.

Working Principle

The main working principle of the MAX14769EVKIT# is to provide a solution for the MOSFET driving needs of 1-cell/2-cell Li+ battery-charging applications. It operates by driving a P-channel MOSFET to turn ON and OFF high side MOSFETs to control battery charging and discharging current. It operates with a high-voltage level, up to 12V, and is capable of driving up to 3A of drain current. It also features current limiting and over temperature protection that prevents damage to both the application circuit and the MOSFET.

The kit also includes a power supply module, a test board, a synchronous rectifier diode, a P-channel MOSFET, four ceramic capacitors, and two ferrite beads. The power supply module provides a 3.3V or 5V logic level and generates a bias voltage to drive the MOSFET. The synchronous rectifier diode is used to provide a low-resistance path for the current, while the P-channel MOSFET is used to turn on and off the high-side switches. The ceramic capacitors provide filtering for the current flow, and the ferrite beads are used to reduce EMI noise. The test board provides a terminal for the connection of the MAX14769EVKIT# and the external application circuit.

The MAX14769EVKIT# also includes a Windows GUI which helps to monitor the current flow, voltage at the source, and the temperature of the MOSFET. This GUI can also be used for parameters tuning, such as current, voltage, and temperature thresholds. The kit also includes a DC-DC converter board, which can be used to test and evaluate the performance of 1-cell/2-cell Li+ battery-charging solutions.

In conclusion, the MAX14769EVKIT# is a powerful high-side MOSFET driver with current and temperature shaping, which enables users to develop and evaluate a broad range of products including DC-DC converters, motor drivers, or 1-cell/2-cell Li+ battery-charging applications. This evaluation and demonstration board and kit is designed to provide users with a powerful, efficient, and reliable solution for their power needs.

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