MAX8797GTI+

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The MAX8797GTI+ is a powerful integrated power management unit (PMIC) designed for intelligent systems in the industrial and consumer market. It is optimized for integrated systems based on ARM Cortex-M or similar microcontrollers, providing a comprehensive power management solution.

The MAX8797GTI+ includes a 4-phase buck converter with adjustable output voltage, two linear regulators with adjustable outputs, a battery charge controller, dual low-dropout (LDO) regulators, and a power sequence control block to maximize system power integrity. The power products also feature an input supply monitor, an I2C/SMBUS output, and two general-purpose input/outputs (GPIOs).

The MAX8797GTI+ can be used in a wide range of applications, from home automation and IoT to automotive, medical, industrial, and consumer. It is designed to reduce system complexity, minimize component count, minimize power dissipation, and improve reliability.

Application Field

The MAX8797GTI+ is suitable for a variety of applications that require power management, such as:

• Home automation: The MAX8797GTI+ can be used to power lighting and climate control systems in the home. It can also be used to power security systems, air-conditioning, and other home appliances.

• IoT: The MAX8797GTI+ can be used to power connected systems such as wearables, sensors, and cameras.

• Automotive: The component can be used to power navigation systems, entertainment systems, and motor control systems.

• Consumer electronics: The component can be used to power smart phones, tablets, and other consumer electronic devices.

• Industrial: The component can be used to power industrial automation systems, factory control systems, and machine control systems.

Working Principle

The MAX8797GTI+ is a power management integrated circuit that forms the core of the electronic power management system. Its main function is to provide the correct amount of power from the input to the downstream components and subsystems, while protecting them from faults and over-voltage conditions. The component has voltage and current monitoring, as well as over-voltage, under-voltage, over-temperature, and over-current protection.

The component controls the buck converter to improve efficiency and reduce power dissipation, while the linear regulators are used to reduce noise and transient voltage drops. The battery charge controllers maintain the charge of the battery, while the sequence control block provides the correct system start-up sequences to ensure that all components are powered on in the correct order.

The MAX8797GTI+ also integrates various safety and protection features, such as short-circuit protection and over-charge/discharge protection. The component has an input supply monitor, which monitors the input voltage and current levels, and an I2C/SMBUS output that provides power data and status information. Additionally, the component provides two general-purpose input/outputs (GPIOs) to control the power sequencing.

The component has a wide operating temperature range of -40°C to +125°C, which makes it suitable for use in harsh environments. The component is RoHS compliant and also includes built-in ESD protection. It is also available in 3 mm x 5 mm and 7 mm x 7 mm packages.

The MAX8797GTI+ is a powerful and reliable component that provides a comprehensive power management solution for intelligent systems. It offers a wide range of features, including voltage and current monitoring, over-voltage and under-voltage protection, and an I2C/SMBUS output. The component also includes over-temperature and over-current protection and two GPIOs to control the power sequencing. The component is RoHS compliant and also has a wide operating temperature range of -40°C to +125°C.

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