APX810S00-40SA-7

PMIC - Supervisors

Power Management ICs (PMICs) are devices used to control, manage, and monitor the performance of power systems, devices, and systems. PMICs are used to bridge the gap between high performance power systems and low-power applications. They provide a cost-effective solution to power management. The APX810S00-40SA-7 is a PMIC supervisor designed to help system designers achieve their power management goals while protecting the system from over-voltage and Brown-Out conditions.

APX810S00-40SA-7 Application Field

The APX810S00-40SA-7 is a voltage supervisor which provides system designers with a robust solution for monitoring power supply conditions in systems powered from a single rail. It can be used in a variety of applications including portable electronics, video equipment, and automotive systems. The APX810S00-40SA-7 features an ultra-low-current start-up, an integrated low-power wake-up timer, and an adjustable slow start-up sequence. The device is available in a 3mm x 3mm UDFN package and is capable of delivering a maximum output load current of 8-mA. This makes it suitable for applications where space is limited.

APX810S00-40SA-7 Working Principle

The APX810S00-40SA-7 is a voltage monitor that contains a comparator circuit and a sense resistor. When the input voltage, VIN, is greater than a pre-set threshold voltage, VTH, the comparator circuit is activated and the supervisor output, RESET, is pulled to a low logic level. If the input voltage is lower than the pre-set threshold voltage, the output will be pulled to a high logic level. The sense resistor is used to provide a feedback loop to the comparator circuit to allow the supervisor to adjust its output for desired accuracy.

The APX810S00-40SA-7 features an integrated low-power wake-up timer. This timer is used to monitor the device\'s output voltage over time. If the supervisor output voltage is detected to have deviated from its pre-set oscillating frequency, the timer will trigger and pull the RESET output to a low logic level. This provides additional protection for the system during power supply malfunctions.

The APX810S00-40SA-7 also provides system designers with an adjustable slow start-up sequence. This feature is used to prevent over-voltage and Brown-Out conditions by gradually increasing the output voltage rather than switching the output quickly. This is beneficial in applications where the system components must be powered up in stages. The slow start-up feature helps to ensure a smooth and consistent power supply.

Conclusion

The APX810S00-40SA-7 is a PMIC supervisor designed to protect a system from over-voltage and Brown-Out conditions. It features an ultra-low-current start-up, an integrated low-power wake-up timer, and an adjustable slow start-up sequence. This device is small, cost-effective, and suitable for applications where space is limited. It can be used in a variety of applications including portable electronics, video equipment, and automotive systems and provides system designers with a robust solution for monitoring power supply conditions.