MAX6827SUT+T

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Power management integrated circuits (PMICs) are used to distribute and control the power generated by a power source in a wide variety of applications, from smartphones to large-scale industrial systems. The MAX6827SUT+T is a member of the MAX6800 family of supervising and monitoring PMICs, which provide system designers with a single-chip solution for battery and real-time clock (RTC) management. This article will outline the application field, typical applications and working principle of the MAX6827SUT+T.

Application Field

The MAX6827SUT+T integrates all the features necessary for monitoring and controlling system power and battery operations. This device offers an ideal solution for use in battery-powered portable electronic devices such as cell phones, hand-held computers, PDAs, MP3 players, digital cameras, and other consumer electronics. It also finds application in computing peripherals, server blade modules, and similar applications which require power and battery monitoring.

Typical Applications

The MAX6827SUT+T can be used for a wide variety of applications, including:

• Cell phone, hand-held computer, and PDA battery management
• Battery-powered consumer electronics, such as digital cameras and MP3 players
• Server blade module power management
• Bulk power FET switching
• NiMH and lithium-ion battery charging
• Power sequencer and regulator functions

Working Principle

The MAX6827SUT+T is designed to provide battery and RTC management in a single chip. It contains a power supply monitor, an integrated secondary regulator, a battery manager, and a real-time clock/calendar. The power supply monitor and the battery manager each have an independent output pin, which can be used to provide a status indication to the host microcontroller, host processor, or an LED. The power supply monitor is used to monitor the voltage of the main system power-supply and provide an indication when the power-supply is too low, or charging from the power adapter is complete.

The battery manager monitors the voltage level of the battery and provides a low battery indication when the voltage drops below a programmable threshold. Furthermore, the MAX6827SUT+T can also be configured to provide an indication when the battery is fully charged, or when a battery pack is connected as well as disconnected from the system. The real-time clock/calendar provides accurate timing capability and can be used to initiate periodic events such as automatic power-offs and other system events.

Overall, the MAX6827SUT+T is an ideal solution for battery and RTC management in a variety of applications. It provides all the necessary features in a single-chip solution, making it an excellent value for system designers.

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