ADM809SARTZ-REEL7

ADM809SARTZ-REEL7 application field and working principle

PMIC - Supervisors are power management integrated circuits that take a wide range of input voltages and provide accurate, stable, low-power voltage regulation and switching circuits. The ADM809SARTZ-REEL7 is an advanced power management supervisor for microprocessors, DSPs, ASICs, and other processors that require active power supply monitoring and switch-mode control.

Applications

The ADM809SARTZ-REEL7 is ideal for a wide range of applications where monitoring and switch-mode control of power supply rails is necessary. It is widely used in embedded and desktop systems in such applications as industrial process and lighting control, point-of-sale and kiosk, and automotive, to name a few. It is also suitable for notebook and tablet computers, and other applications that require sophisticated power management functions.

Features

The ADM809SARTZ-REEL7 provides a wide range of features designed to provide accurate and reliable voltage regulation and power switching control. It is designed with a programmable bias voltage, a voltage supervisor module, a watchdog timer, on-board sequencing, and a wide operating temperature range. The device also features dual output voltage agility for over voltage and under voltage protection, thermal shutdown, and brownout protection. It also includes an integrated programmable power sequencer, shutdown and brownout controllers, and current limit circuitry.

Working Principle

The ADM809SARTZ-REEL7 operates on a simple principle – the input voltage is monitored and its magnitude is compared with the internal reference voltage (VREF). If the input is higher than VREF, the device switches on a MOSFET connected to the output supply rail and reduces its voltage to create the regulated output voltage. If the input is lower than VREF, the MOSFET shuts off and allows the output voltage to remain at the desired level. In this way the device provides accurate voltage regulation and switch–mode control.

Conclusion

The ADM809SARTZ-REEL7 is a versatile power management supervisor designed for a wide range of applications. It provides accurate voltage regulation and switch-mode control, and features dual output voltage agility, thermal shutdown, and brownout protection. Its advanced power management features make it ideal for embedded and desktop systems, notebook and tablet computers, and other applications that require sophisticated power management functions.