PT7M7438TAEX

PT7M7438TEX is a member of the PMIC – Supervisors family of integrated circuits, designed to provide reset and other protection functions for microprocessors. The device is optimized for use in applications requiring a low supply current and extended battery life. It provides users with a stable and accurate reset threshold, as well as monitoring and protection functions for both the processor and the system associated with it.PT7M7438TEX includes a variable-threshold, reset-output pin which is controlled by a set of preset, adjustable or programmable thresholds. The reset thresholds are set by a combination of external resistor values and an internal trimmer resistor. When the monitored voltage falls below the reset threshold, the output of the device will go low, activating the reset. The device offers additional features designed to protect the processor and associated circuits. These include open-drain outputs that are active when the power supply drops below thresholds: undervoltage (UV) reset, overvoltage (OV) reset, and watchdog reset. The UV reset is typically used to protect the processor by triggering a reset sequence when the voltage drops below the chosen threshold. The OV reset acts in a similar fashion, resetting the processor when the voltage rises above the chosen threshold. The watchdog reset is triggered when the watchdog timer elapses without being serviced, indicating that the processor has failed to operate correctly. The PT7M7438TEX also includes advanced features such as an active-high auxiliary input and output, which can be used for various factory-programmed functions. Furthermore, the device has short propagation delays between the monitored voltage and the reset output, which guarantees complete reset of the processor in time-critical applications. It also features superior noise immunity and low jitter, making it suitable for applications that require a high level of reliability.Overall, PT7M7438TEX is an excellent choice for protection, reset, and monitoring functions for both the processor and the system associated with it. It features an adjustable reset threshold, advanced protection features, a low supply current, and superior noise immunity, making it a highly versatile and reliable choice for various applications.