TL7702BID

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The TL7702BID is among Texas Instruments\' Low-Voltage Supervising and Regulating Circuits, or PMIC-Supervisors. This specialized product is primarily for microprocessor-based systems that require power management and reset features. The TL7702BID is a highly innovative monitor circuit, with integrated monitoring capability and interfacing flexibility that enable it to be used in a wide variety of applications.

The TL7702BID\'s application field is diverse, since it is designed to monitor the power-supply voltage of microprocessor-based systems. It is compatible with any microprocessor that operates with a supply voltage range of 1.71v to 5.25v, and it is able to accurately monitor even low-voltage systems. It is also able to provide precision reset logic for several microprocessors, with a precise reset threshold of 1.9V +/-10%. Furthermore, its reset output is guaranteed to be active for up to 100ms after power-supply recovery.

The TL7702BID is powered from the main 5V supply and requires a minimum main 5V, 1.71V (VDD) operating voltage. It features an adjustable Reset Threshold, a Debounce Time Limit of up to 25ms, an Output toggle, and provides open-drain active-low reset output signals. Its internal components are protected by under-and over-voltage detection, and it also has a separate watchdog input referred to as the WDI pin.

The TL7702BID works by monitoring the VDD power-supply voltage through an on-chip voltage detector circuit. It is designed to detect drastic changes in the supply voltage, such as those caused by a sudden power-supply shutdown or a system fault. This circuit responds to such occurrences by activating the reset output (reset flag) active low signal, providing the necessary components to reset any connected microprocessors.

The TL7702BID also features an adjustable watch dog circuit that can be used to reset the system in case of system failure (>95ms). The watch dog circuit uses the WDI pin for its purpose, and it is connected to a timer circuit that will trigger the reset flag if the WDI pin does not receive an active signal within a specified period of time.

The TL7702BID is available in several packages, such as SOP-14, SOIC-14 and V’SON-6. It is also cost-effective and has a wide temperature range of -40°C to +105°C. This makes it well-suited to a variety of applications, such as HVAC, household appliances and consumer electronics.

In conclusion, the TL7702BID is a highly versatile, low-voltage supervising and regulating circuit. It is an excellent choice for microprocessor-based systems that require power management and reset features. Its various features, such as the adjustable Reset Threshold, Debounce Time Limit, Output toggle and active-low reset output signals, make it well-suited to a wide variety of applications – from consumer electronics to HVAC and more. This product from Texas Instruments also comes in cost-effective packages, and requires a minimum main 5V, 1.71V (VDD) operating voltage.

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