X40020S14Z-BT1

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The X40020S14Z-BT1 is an ultra-low-power reset/monitor controller IC from Nexperia’s Supervisors family. It features a built-in voltage supervisor that can monitor up to two power supply rails and generate a reset pulse when the voltage goes below a pre-set threshold value. The X40020S14Z-BT1 can also be used for OVP (over-voltage protection) and to detect brownout conditions.

The X40020S14Z-BT1 is used in many applications, such as LED lighting, automotive applications, industrial control systems, embedded systems and other power management applications. Its main features include low-power operation, low-voltage operation, ultra low-supply current (1 µA typical) and low-operating voltage range (from 1.8V to 5.5V).

The X40020S14Z-BT1 reset/monitor controller has a reset delay counter, internal voltage reference and a low-power reset active status indicator. The reset delay counter is adjustable up to 16-bit resolution, allowing for precise reset timing. The internal voltage reference is used to determine the reset threshold detection level. It has an adjustable hysteresis voltage level, typically 12 mV, which helps to limit output pin transients.

The X40020S14Z-BT1 reset/monitor controller also offers three reset output modes. The +RESET/MRESET pin provides active-low reset pulses when the voltage falls below the threshold. The Lreset pin provides active-low hard reset. The LRESET pin output is continuously active, providing a system reset active monitoring function. Also, the Lreset pin can be configured as a Schmitt-trigger input.

In addition, the X40020S14Z-BT1 offers an internal oscillator to allow for programmable reset delay. The oscillator frequency is determined by the internal resistor/capacitor (RC) network. This RC network can also be used as an external clock source for the X40020S14Z-BT1. The oscillator can be set for either a slow-start or a fast-start operation.

The X40020S14Z-BT1 reset/monitor controller also features several solutions for advanced temperature control. Internal temperature sensing can be used to shut down the system when the device reaches a pre-defined temperature. Overtemperature shutdown can be monitored independently in three separate temperature zones.

The X40020S14Z-BT1 reset/monitor controller also includes a watchdog timer to monitor the system health. It has a programmable pre-warning time, alerting the system of any imminent drops in voltage. This feature enables the system to take corrective measures before the reset is triggered.

In summary, the X40020S14Z-BT1 reset/monitor controller is an ideal device for many embedded applications, providing system reset, voltage monitoring, temperature monitoring and watchdog timer solutions. The X40020S14Z-BT1 is an excellent choice for applications requiring an ultra-low-power reset and monitor controller IC, with low voltage operation, fast startup and multiple reset output modes.

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