APX810S00-23SR-7

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Power management integrated circuits (PMICs) have become essential components of many electronic systems in a wide range of applications. They offer power management solutions for consumer and industrial products, thus significantly reducing system-level power consumption and saving cost and size. The APX810S00-23SR-7 is one such example of PMIC - Supervisors that seamlessly supports battery packs and power supply solutions. This article will discuss the application fields and working principle of APX810S00-23SR-7.

Application field of APX810S00-23SR-7

The APX810S00-23SR-7 is a low drop-out (LDO) regulator with multiple features and functions. It is primarily used as a voltage supervisor and battery protection device, ensuring the circuit remains in a safe operating condition at all times. It is equipped with three Open Drain (OD) circuits to detect over-current, over-temperature and over-voltage conditions and protect the system accordingly. The device has an adjustable voltage between 0.75V to 5.50V with a very low input-output differential of only 0.1V.

The circuitry comprises of a voltage reference, an amplifier and a comparator circuit. It is also used as a voltage supervisor and short-circuit detector. In addition, it provides adjustable reset thresholds, timeout periods and transistor drive current. The APX810S00-23SR-7 is fully compatible with popular power switches and linear regulators, making it the perfect solution for battery packs, monitoring and protection in application fields such as wearables, Bluetooth and wireless connectivity devices.

Working principle of APX810S00-23SR-7

The APX810S00-23SR-7 is a PMIC - Supervisors, employing a voltage supervisor technique. It is based on a voltage reference circuit, a comparator and an amplifier which compares the output voltage of the power source with the reference voltage. The output of the comparator is fed back to the input of the voltage reference circuit and the amplifier, comparing the output voltage with the existing reference voltage and adjusting the output voltage respectively. The reference voltage is typically set to a pre-determined value and will not vary.

The PMIC - Supervisors also features an open-drain circuit which is typically used to detect over-current and over-temperature conditions. The open-drain circuit is triggered when the output voltage of the power source exceeds the reference voltage. When the output voltage of the power source is higher than the reference voltage, current flows through the open-drain circuit and triggers the OD circuitry. This in turn will trigger the reset circuitry, protecting the system.

The APX810S00-23SR-7 also features a timer circuit which is used to detect a short-circuit condition. When the short-circuit condition is detected, the timer circuit triggers the reset circuitry to protect the system. The APX810S00-23SR-7 also has adjustable reset thresholds, timeout periods and transistor drive current for increased flexibility and functionality.

Conclusion

The APX810S00-23SR-7 PMIC - Supervisors is designed for battery packs and power supplies, providing a multitude of features and functions. It is equipped with voltage reference and comparator circuits to detect over-current, over-temperature and over-voltage conditions. It also features an open-drain circuit and timer circuit, and adjustable reset thresholds, timeout periods and transistor drive current. This makes the APX810S00-23SR-7 the ideal solution for a wide range of application fields such as wearables, Bluetooth and wireless connectivity devices.

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