AS1923A-BSTT-K

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The AS1923A-BSTT-K is a power management integrated circuit (PMIC) from Renesas. It is a type of supervisor (or fault protector) and is used in high-power applications. It is an intelligent device that monitors the power supply and ensures continuous reliable operation. The device can detect fault conditions and provide automatic power-on reset, voltage sequencing and power-saving functions. It can also provide undervoltage lockout (UVLO) and current limit protection for circuits and systems.

The AS1923A-BSTT-K is designed to provide a comprehensive range of features, such as over-voltage protection (OVP), over-current protection (OCP) and short circuit protection. It also provides a precision reset pulse in response to a power failure and enables monitoring of system voltages. It features an adjustable reset/reset hold threshold to adapt to changing system parameters and an adjustable reset timeout value. The device also features an adjustable voltage start ramp, enabling the monitoring of power supply fast-start and overshoot conditions.

The AS1923A-BSTT-K is available in a 3x3mm, 23-pin TQFN package and operates from 2.0V to 5.5V. It has a wide operating temperature range from -40°C to +105°C, making it well-suited for a variety of automotive, industrial and consumer applications. The device can detect a fault condition as soon as it occurs and will take appropriate action to ensure safe operation of the system. The device also has a watchdog timer, allowing it to monitor the system’s overall operation status.

At the heart of the AS1923A-BSTT-K is a PMIC supervisor circuit that operates on a proprietary bus communication protocol. This bus enables communications with other components on the board. The device features a highly configurable architecture, allowing it to support a number of system voltage domains, such as voltages used for flash memory and analog signal conditioning. In addition, the device can sense a number of system signals, including power fail, reset, voltage slew rate and reset hold, enabling it to monitor and control system operation.

The AS1923A-BSTT-K is well suited for a variety of system control and power management applications. It can be used to provide system supply voltage sequencing and reset initiation, while providing safe power-on and power-off operations. The device can also be used to provide under-voltage lockout protection and current limit protection, ensuring the safety of external components in case of an overcurrent or overvoltage condition. Additionally, the intelligent watchdog timer can be used to monitor system status, ensuring that the system operates safely and reliably.

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