TCM809JVLB713

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	4V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SC-70-3
Base Part Number:	TCM809J

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PMIC - SupervisorsPower Management IC (PMIC) Supervisors are commonly used in many electronic systems and microprocessor-controlled systems applications to provide advanced protection and power management capabilities. The TCM809JVLB713 is an example of a PMIC supervisor IC. While there are slight feature variations between chipsets, the fundamentals of their design, operation and application field remain largely the same. The TCM809JVLB713 is an integrated circuit that combines electromechanical supervisory, audible alarm and hot-swap functions into a single IC package. It is able to provide monitoring and control of critical electronic system parameters, such as voltage, current, temperature, and system operation. This chip also includes precision voltage references, high accuracy analog comparators, adjustable voltage monitoring and over-current detection circuits. It is specifically designed for robust system-level protection in a wide variety of applications including computers, microcontrollers and automotive systems.A TCM809JVLB713 power management IC supervisor is most commonly used in highly sensitive applications where fail-safe operation is essential. The supervisor IC provides a sophisticated level of protection, including over voltage and under voltage protection, as well as brown-out detection, adjustable positive and negative trip points, active current limit, two audible and optoisolated alarms, voltage and current monitoring and power-down reset.At its core, the TCM809JVLB713 includes several sub-components, each with a different function. The main components of the IC include a voltage monitor and over-current detector, sample & hold amplifier, over temperature detector, band-gap voltage reference, clock & reset circuit, and a fault status register. The voltage monitor circuit compares the input voltage to two user-configurable reference levels, enabling automatic reset in the event of an over-voltage or under-voltage condition. The over-current detector monitors the system’s return current and provides protection against excessive loads. The sample-and-hold amplifier level shifts the measured voltage level so that the internal comparators can operate on the same voltage level. The voltage reference supplies a known and stable reference voltage to the analog comparators and temperature sensor. The clock & reset circuit controls the reset logic, while the fault status register stores all measured input conditions that have triggered the reset.Another core part of the TCM809JVLB713 is its audible alarm output circuit. This provides another form of system protection by emitting an alarm whenever one or more of the applied voltage, current or temperature levels exceeds the user-configured thresholds. This alarm is kept on even during system power-down, helping to ensure that any potential faults are addressed in a timely manner.The TCM809JVLB713 is an extremely versatile and robust power management IC supervisor that provides an ideal solution for a wide range of electronic system protection requirements. It features high accuracy analog comparators, adjustable voltage monitoring and over-current detection circuits, as well as audible alarms for additional system protection. Its small form factor and ease of integration make it an attractive solution for system designers who need reliable and efficient protection for their products.

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