MAX6385XS19D7-T

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PMIC - Supervisors: MAX6385XS19D7-T Application Field and Working Principle

PMICs, or power management integrated circuits, are a type of integrated circuit typically used in digital devices that require energy management to safely and efficiently function at all times. One popular type of PMIC is the Supervisor, which works to monitor a device\'s power source and provide system indication, reset, and fault reporting. This article explores the application fields of the MAX6385XS19D7-T Supervisor, as well as its working principle.

MAX6385XS19D7-T Applications

The MAX6385XS19D7-T is a high-performance Supervisor module designed for mobile, portable, and embedded applications. It features a +2.5V to +5.5V input voltage range and an adjustable threshold voltage, making it a great choice for applications that require accurate voltage monitoring and control. The MAX6385XS19D7-T Supervisor is designed to monitor single-cell and 2-cell Li-ion and Li-polymer battery packs. It can also be used to measure various types of other battery chemistries, including NiMH and NiCd, and provides system-level protection to extend battery cycle life. The module provides an adjustable reset or power-on reset (POR) delay of up to 100ms, allowing system designers to optimize system control. The MAX6385XS19D7-T can be used in a wide variety of applications, such as notebook PCs, digital still cameras, and personal digital assistants (PDAs).

Working Principle

The MAX6385XS19D7-T Supervisor consists of a precision voltage monitor, a programmable reset timer, an output FET, and an open-drain output. The voltage monitor measures the threshold voltage, which can be adjusted over the range of +2.5V to +5.5V, and drives the open-drain output to the active-low RESET state when the waiting times have expired. The reset timer can be programmed to a waiting time of up to 100ms. After the waiting time has expired, the voltage monitor de-asserts the RESET assertion and the output goes to its inactive state. The module can be used to provide system-level protection against overvoltage, current limit, cell balancing, and reverse current conditions. The module also provides an open-drain output that can be used to control system functions with an external switch or logic level.

Conclusion

In conclusion, the MAX6385XS19D7-T is a high-performance Supervisor module designed to monitor single-cell and 2-cell Li-ion and Li-polymer battery packs. It can also be used to measure various types of other battery chemistries, including NiMH and NiCd. The MAX6385XS19D7-T Supervisor allows for an adjustable reset or power-on reset delay of up to 100ms, and provides system-level protection against overvoltage, current limit, and cell balancing. As such, it is a great choice for mobile, portable, and embedded applications that require accurate voltage monitoring and control.

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