X40420S14-BT1

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The X40420S14-BT1 is a voltage supervisor for digital and linear applications with built-in brownout protection. It is a digital supply supervisor designed to provide on/off sequencing and precise monitoring of battery, supply and housekeeping voltages. The X40420S14-BT1 is designed to protect board circuitry and lithium-ion batteries from under-voltage events. This device is very suitable for embedded applications and offers system designers a compact solution with improved fault tolerance and dependability in the most demanding applications. The X40420S14-BT1 is a PMIC supervisor that is perfect for use in circuit boards, smartphones and embedded systems.

Application Field

The X40420S14-BT1 is a voltage supervisor suitable for platforms utilizing SoCs or FPGAs. Its two General-Purpose Input/Output (GPIO) pins are used to sequence on/off analog and digital signals. This board supervisor is designed to meet power requirements in digital and linear applications such as networking devices, industrial PCs, cellular base stations, automotive systems, digital imaging and medical equipment. It is specifically designed to monitor voltage deviations and to provide a low power solution with improved fault tolerance and dependability.

Working Principle

The X40420S14-BT1 operates by sequencing on and off analog and digital signals using two GPIO pins. The device monitors the system supply rail, battery and housekeeping voltage to determine if fluctuations in voltage are within acceptable tolerance levels or if a low-voltage event is occurring. If a low-voltage event is detected, it issues a warning and begins the system shut down process. It then holds the GPIO pins in either a high or low logic state which activates on/off sequencing to begin the shutdown process.

The X40420S14-BT1 is suitable for different cell types including Li-Ion, Li-Polymer and Alkaline batteries. It also contains an input enable pin which allows the device to stay in low-power standby, to conserve power. The device is tolerant to overvoltage, undervoltage, overload and reverse-polarity during the start-up sequence, so it offers a robust solution for system designers.

In conclusion, the X40420S14-BT1 is a PMIC supervisor designed for digital and linear applications. It provides fast on/off sequencing and precise monitoring of battery, supply and housekeeping voltages. It is suitable for embedded applications and other industrial applications thanks to its improved fault tolerance and dependability.

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