TPS3828-33DBVT

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	120 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	TPS3828-33

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TPs3828-33DBVT Application Field and Working PrincipleTPS3828-33DBVT is an ultra-low power, low-voltage monitoring supervisor circuit for microcontrollers. This device is part of the PMIC - Supervisors family of products, which includes a wide range of monitoring circuits and reset devices commonly used to ensure application reliability.The TPS3828-33DBVT is a tiny, ultra-low-voltage, low-power circuit that provides a dependable way to monitor system power supply and prevent unintentional system collapse due to accidental brownouts, outages, short-term glitches, and other power related events.The TPS3828-33DBVT is a three-volt (3V) ultra-low power supervisor designed to monitor the voltage at its monitoring pin (Vcc) and activate the reset pin if that voltage sinks below the factory-set trip point of 2.51V (typical value) or rises above the factory-set reset point of 2.77V (typical value). This supervisor also features an external capacitor that allows for user-adjustment of the reset/trip thresholds (T/R ranges from 1.781V to 3.343V).The TPS3828-33DBVT detects deviations from operation parameters, including voltages and temperatures, to prevent any potential hardware or program malfunction from occurring. This makes it very useful in protection of microcontrollers, FPGA and CPLD devices, industrial controls, digital signal processors, sensor networks, power monitoring and management circuits, home appliances, and more.The TPS3828-33DBVT can detect a wide range of power supply conditions, including brownouts and outages, allowing it to diagnose, reset, and save the operating parameters of the target device. This allows the device to recover quickly if the power supply is temporarily interrupted or if it drops below the chosen operating threshold.When VCC falls below the trip point, the reset output is asserted. If VCC rises above the reset point, the reset output de-asserts. The TPS3828-33DBVT supports active-high and active-low reset configurations. Internal logic circuit prevents multiple erroneous detections, where a stable high or low logic level is present at the reset voltage.The TPS3828-33DBVT also includes an internal power control system that reduces overall current draw. This feature ensures an extremely low sleep and monitor current in order to conserve power and extend battery life, and a switch-over mode provides the needed start-up current to support stable power supply.In conclusion, the TPS3828-33DBVT is an extremely small and low-power device that provides a dependable way to monitor system power supplies and prevent unintended system collapse due to brownouts, outages, and other power related events. Unlike other supervisors, the TPS3828-33DBVT offers user-adjustable reset and trip thresholds, an internal power control system, active-high and active-low reset configurations, and exceptional protection features. This makes it an ideal choice for applications that require low power monitoring and reliable protection.

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