MAX4967EGEE/V+

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Power management integrated circuits (PMIC) are an important element of most electronic systems. A PMIC is what regulates the power and other functions within a circuit, in order to keep it running correctly. There are a variety of specialized PMICs available for various applications, such as the MAX4967EGEE/V+ PMIC. This PMIC provides a variety of features and functions, and is well suited for a range of applications. This article will discuss the features and functions of the MAX4967EGEE/V+ PMIC, as well as its application field and working principle.

Features and Functions of the MAX4967EGEE/V+ PMIC

The MAX4967EGEE/V+ PMIC is a highly integrated power management integrated circuit, offering several features to suit a range of applications. Some of the features offered include a 1.2MHz switching frequency, integrated dual 240mA low-side drivers, and a wide operating temperature range of -40°C to +105°C.

The MAX4967EGEE/V+ offers independent control of the two low-side PMOS power switches, in addition to providing a wide range of protection functions. Among these are undervoltage lockout (UVLO), overvoltage protection (OVP), brownout protection, overtemperature protection (OTP), overcurrent protection (OCP), and a power-on reset (POR).

For easy implementation, the MAX4967EGEE/V+ also offers a selectable active-low or active-High enable pin for quick addition of power management to any system. Furthermore, it incorporates a bootstrap diode and charge pump circuit to minimize external components, as well as support power-up related requirements.

Application Field

The MAX4967EGEE/V+ PMIC is ideal for a variety of applications requiring control of high-side and/or low-side switches. Some of the more common applications include automotive power management, industrial/building control, motor control, and machine vision systems. The PMIC is also well suited for applications with limited board space, as its compact size of 7mm x 7mm allows for use in tight quarters.

It is important to note that the MAX4967EGEE/V+ PMIC is a multi-purpose PMIC. As such, it is suitable for a range of applications across the entire power spectrum, from very low voltage, low-side/high-side switch applications to high power systems requiring protection and precise control.

Working Principle

The working principle of the MAX4967EGEE/V+ PMIC is fairly straightforward. Essentially, it receives an enable signal from the system controller, and then turns on both the PMOS low-side switches. Once the switches are on, the PMIC monitors the voltage, current and temperature of the system, and then regulates the power accordingly.

When the enable signal is removed, the MAX4967EGEE/V+ PMIC shuts off both the low-side and high-side switches. It also provides protection against a variety of potential hazards, such as overvoltage, overcurrent and overtemperature. Finally, it also includes a power-on reset (POR) feature to ensure that the system starts up in the correct state.

Conclusion

The MAX4967EGEE/V+ PMIC is a highly integrated, low-cost PMIC designed for use in a variety of applications. Its features and functions make it well suited for automotive power management, industrial/building control, motor control, and machine vision systems. Furthermore, it offers a wide range of protection functions, including undervoltage lockout (UVLO), overvoltage protection (OVP), brownout protection, overtemperature protection (OTP), overcurrent protection (OCP), and a power-on reset (POR). Finally, its small size and low power consumption make it an ideal choice for applications with limited board space.

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