ADM812TART-REEL7

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The ADM812TART-REEL7 is a PMIC (Power Management Integrated Circuit) also known as a Supervisor. Designed to control and measure power distribution in higher power-consuming electronic devices, the ADM812TART-REEL7 enables the device\'s processors to manage energy and reduce power consumption while maintaining reliability and maximizing performance. In this article, we will discuss the applications and working principles of the ADM812TART-REEL7.

The ADM812TART-REEL7 is well-suited for use cases that demand robust performance and low power consumption. The chip is designed for use in a broad range of applications, including telecommunications and networking, industrial, medical, automotive, and consumer electronics. The chip is well-suited for battery-powered applications and the addition of a wide range of external peripherals such as LCDs, FPGAs, LEDs, and general-purpose I/O. It is also designed to enable the integration of power- and energy-management features into a single solution.

The ADM812TART-REEL7 is an 8-channel, digitally-controlled power supply supervisor (DCPS) featuring an integrated, precision voltage monitor and manual RESET/recall function. The device includes automatic power-saving modes and operates down to 1.2V without the need for a step-down regulator. Additionally, the device includes an integrated voltage tracker and an internal current-limit function. The voltage monitors are adjustable, allowing users to set the voltage level that their processor needs to recognize.

The ADM812TART-REEL7 offers multiple features that optimize user experience and power usage when implemented. The device features a programmable overvoltage and undervoltage protection as well as a power-good indicator. The on-chip temperature monitor allows the user to adjust the voltage at different temperatures. Additionally, a comparator, timer, and voltage supervisor provide protection against long-term, potentially damaging power-supply faults. The built-in manual resistors allow the user to control start-up conditions or to bypass the POR circuitry. The on-chip, low-power sleep mode reduces the current drawn to only 1 µA while the device waits for an external trigger.

The ADM812TART-REEL7 works by monitoring the voltage on each of its eight power supply channels. For each channel, an internal voltage monitor and comparator is used to detect when the voltage is below a predetermined threshold. If this occurs, the power control loop intervenes and adjusts the power supply to bring the voltage back up to its normal level. When all eight channels are brought back up to their normal voltage level, the power control loop will stop automatically.

The ADM812TART-REEL7 also includes an internal manual reset or recall function that enables the user to reset the board without having to issue a hardware reset. This feature is typically used if the system encounters a glitch or a power-up fault. When enabled, the manual reset/recall can be triggered at any time, allowing the user to bring the system back up without having to wait for a hardware reset or power cycle.

In summary, the ADM812TART-REEL7 is an effective power management solution that provides a broad range of features including protection against overvoltage, undervoltage, thermal events, and power-up faults. Through the integration of a precision voltage monitor, manual reset/recall, and a power-good indicator, the ADM812TART-REEL7 offers robust and reliable performance at low power levels. Additionally, the device is well-suited for a range of applications, from telecommunications and networking to industrial, medical, automotive, and consumer electronics.

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