TPS3850H33QDRCRQ1

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The TPS3850H33QDRCRQ1 is an adjustable voltage supervisor suitable for bridging of power, Brown-out and problem reset indicators in microprocessor based systems, making it a must-have component in any Power Management Integrated Circuit (PMIC) independent or system context. It is a member of Texas Instruments\' (TI) TPS38xx family of voltage supervisors and is intended to assist in resetting microprocessor-controlled systems, keeping them from entering into unreliable operating states and then resetting them when caused by a power fault or other failure.This type of voltage supervisors, typically PMIC integrated devices, are typically used in all sorts of computer-controlled systems and helps, by providing reliable system reset, protection and stability. It works by regulating a microprocessor\'s voltage and other parameter inputs, including output voltage of power supplies, detection of power supply faults, voltage supervision, and on-/off- reset signals. This supervisor offers a wide operating range from 1.9 V to 5.5 V, rising and falling voltage thresholds, active high and active low reset signals with high accuracy, and provides a low quiescent current.The TPS3850H33QDRCRQ1 is popularly used in consumer and industrial applications, including the consumer and industry space varying from appliances, medical equipment, toys and entire systems. Applications span over all embedded microprocessor-controlled systems that can be battery-operated or receiving AC mains, which can include embedded closed loop systems such as home, automotive, automotive and industrial systems, as well as other internet of things (IOT) applications.

The device monitors the power supply and produces an active-high, active-low, open drain reset signal when voltage thresholds are met. It is powered from the system voltage supply, eliminating the need for a separate, external supply. The reset signal is consistent with the reset signal used by processors and microcontrollers, allowing the supervisor to act as a bridge from the power supply to the processor, and provide the essential reset features. The open-drain nature of the supervisor\'s reset signal allows multiple supervisors to be connected to form a reset chain, with the first supervisor being powered from the processor\'s reset pin.

The TPS3850H33QDRCRQ1 is able to detect power supply faults when input voltage falls below the programmed threshold voltage. This propensity is useful in cases such as input voltage fluctuation and low power-supply ripple or dropout, or when AC power sources are used. Additionally, it provides an adjustable delay time between the power present input and reset output, allowing systems with hold-up times in excess of the reset time to operate properly.

The TPS3850H33QDRCRQ1 has an operating temperature range of -40°C to 85°C and an operating voltage range of 1.8V - 5.5V. The device is available in SSOP, LQFP, and TSSOP packages. The quiescent current is typically 20 µA and the voltage supervisor features an active-low reset flag output, with a typical delay time of 8ms. The adjustable voltage supervisor of TPS3850H33QDRCRQ1 range offers ±1% accuracy over the specified temperature range and is capable of delivering a 2.5V active-high or active-low reset signal.

The TPS3850H33QDRCRQ1 is designed for applications requiring a precise reset operation threshold in built-in voltage supervisor systems. This voltage supervisor is especially suitable for use in any application requiring robust protection from voltage fluctuations and power surges. It has been designed to withstand ESD stresses of up to 4 kV, ensuring maximum system reliability. The TPS3850H33QDRCRQ1 is a high-performance voltage supervisor that seamlessly bridges power, Brown-out, system reset and fault detection.

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