TPS3824-50DBVRG4

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TPS3824-50DBVRG4 is a power management integrated circuit (PMIC) supervisory device. It is specifically designed to provide reliable and robust protection against power supply overvoltage, undervoltage, and overtemperature conditions.

TPS3824-50DBVRG4 is a single-chip analog power management IC that combines all primary functions in one package. The device incorporates a precision voltage reference, a voltage supervisor (also known as a reset generator). It has three precision comparators that can be configured as either low-voltage or high-voltage supervisors, and as an over-temperature sensor. The device also features an open-drain output for status indicator.

The voltage supervisors in TPS3824-50DBVRG4 are used to monitor an external voltage level and generate a reset signal when the monitored voltage reaches a predetermined value. It compares the monitored voltage with an internal voltage reference, and generates an active-low output (open-drain) signal when the monitored voltage reaches either a predefined overvoltage threshold or undervoltage threshold. The active-low signal goes low when the external voltage is within a predetermined safe operating range. The external voltage can be any voltage sourced directly from a power supply, such as system voltages, USB voltages, battery voltages, etc.

The over-temperature detector in TPS3824-50DBVRG4 compares the internal die temperature with the set temperature threshold set in the internal EPROM. When the die temperature exceeds the value stored in EPROM, the open-drain output is pulled low, generating an active reset signal.

The reset output of TPS3824-50DBVRG4 is an open drain and requires an external pull-up resistor to VDD. It can be used to reset the processor or memory, or it can be used to trigger further actions such as activating power cycling, resetting external audio amplifiers, or stopping the system clock.

TPS3824-50DBVRG4 is ideal for use in portable devices such as cell phones, PDAs, digital cameras and other portable consumer electronics, where battery supply is critical. It is also suitable for industrial applications where it can be used to provide system protection against overvoltage, undervoltage and overtemperature conditions.

TPS3824-50DBVRG4 is available in an 8-pin TSSOP package and is rated for an operating temperature range of -40°C to +125°C. It offers excellent repeatability and accuracy on the voltage supervisors, and precise temperature detection and reset signaling through its open drain output.

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