APX825A-31W6G-7 Integrated Circuits (ICs)

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PMIC - Supervisors are a reliable and versatile class of integrated circuit (IC) devices that are designed to protect computer circuitry against harmful electrical forces such as voltage and current overloads, electrostatic discharge (ESD), and other environmental hazards. A PMIC Supervisory device, such as APX825A-31W6G-7, is an important component for embedded designs where applications require device reliability and system flexibility.

APX825A-31W6G-7 Application Field

The APX825A-31W6G-7 Supervisory device is a low-power, voltage supervisor with a built-in precision-fixed voltage regulator and a watchdog timer. On-chip power-On Reset and manual reset circuits help to ensure reliable power supply startup and restart after microcontroller (MCU) reset. The device\'s design, with integrated components including two precision voltage references, is targeted at the portable embedded market and provide a reliable and efficient solution in a wide variety of embedded applications.

The APX825A-31W6G-7 Supervisory device is designed for applications that require voltage monitoring and/or watchdog timer functions. It can be used in products where the MCU must be reset periodically to ensure correct operation. It is suitable for applications such as digital cameras, cell phones, PDAs, handheld terminals, smart meters and home automation products. In addition, the device can be used for system boot-up monitoring, power on/off sequencing and system restart applications.

The APX825A-31W6G-7 Supervisory device is designed with a wide input voltage range and supports both +3.3V and +5V supplies. It supports both Standby and Active modes which allows for low power consumption and flexible system designs. An optional external capacitor can be used to increase the reset signal stability. The device also includes an integrated power-On Reset circuit which helps to ensure that the system is started after a power failure.

APX825A-31W6G-7 Working Principle

The APX825A-31W6G-7 Supervisory device is an integrated circuit that performs two main functions: voltage monitoring and watchdog timer. When the voltage falls below or exceeds its nominal level, the APX825A-31W6G-7 will generate a reset signal to restart the system. It also has an internal counter that increments periodically, and if the counter reaches its pre-set limit, a reset signal is also generated.

The APX825A-31W6G-7 features an adjustable low Voltage Detection (LVD) circuit with user selectable tolerance window and hysteresis. It also features an adjustable Window Watchdog Timer (WWDT) with user selectable Time-Out period and a Watchdog Input (WDIN) pins. WWDT and WDIN can be separately enabled or disabled depending on the application.

The APX825A-31W6G-7 Supervisory device provides very accurate voltage monitoring and reset signal generation. Its low power consumption makes it suitable for battery-powered applications. An autoreset feature allows the device to continuously reset itself if the voltage has been below the programmed threshold for a pre-defined period of time. The high output current capability ensures that the reset signal is generated quickly and accurately even at low voltages. The tight voltage control and autoreset feature help to ensure system reliability.

The APX825A-31W6G-7 Supervisory device is designed for applications where reliability and system flexibility are important. The device features a wide input voltage range, low power consumption, adjustable WWDT and WDIN, and an autoreset feature. All these features provide a simple and cost-effective solution for reliable system monitoring and reset generation. The device is suitable for embedded designs such as digital cameras, cell phones, PDAs, handheld terminals, smart meters and home automation products.

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