TC54VN2702EZB713

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Power management integrated circuits (PMICs) are a set of integrated circuits intended to provide the power management and power delivery requirements of a wide range of applications. The main components of PMICs are voltage regulators, voltage sensing circuits, and supervisors, among many other peripherals. The TC54VN2702EZB713 is a general-purpose supervisor and reset controller made by Texas Instruments, which belongs to this family of PMICs. This article will discuss the applications and working principle of the TC54VN2702EZB713.

Applications

The TC54VN2702EZB713 is specifically intended for system power-on reset and voltage supervisor functions in applications that operate from a 3 V to 5.5 V supply range. Therefore, it is ideal for use in applications that demand a wide operating voltage range and reliable system monitor performance. It can be used in low-power automotive and industrial applications that employ programmable controllers, micro-controllers, or application processors. Examples include portable and hand-held devices, automotive infotainment and telematics systems, and industrial robotics and automation systems.

The TC54VN2702EZB713 has an adjustable reset time delay of typically 0.4 ms to 10 ms. It is suitable for a wide range of applications that require high reliability and stability, such as single board computers (SBCs), file servers, medical systems, and network communications equipment.

Functionality & Working Principle

The TC54VN2702EZB713 is a high-accuracy, low-power component that operates in a 1.65 V to 5.5 V supply range. It is designed to monitor one voltage input, one external reset input, and two system power inputs, as well as a manual reset input. The external reset signal is level-sensitive and can be used as a part of brownout protection or power-on reset. The voltage input can be programmed to detect an out-of-range condition using an external resistor. The TC54VN2702EZB713 is also equipped with an open-drain (OD) output, which can be used to reset other components upon detection of an out-of-range condition.

The TC54VN2702EZB713 has two power-input pins, VDD1 and VDD2. In normal operation, VDD1 is used to power the IC and VDD2 is used to check the power supply integrity. Under benign conditions, the TC54VN2702EZB713 becomes active and the output changes to VDD1 (high-level state). However, if either the voltage input or VDD2 drops below their respective thresholds, the reset output of the TC54VN2702EZB713 changes to its low state, resetting the connected components.

The built-in reset time delay feature of the TC54VN2702EZB713 allows the connected components to be reset after an appropriate delay, which can be set using an external resistor. This ensures that components are not reset too quickly, which can cause system instability. The user can also manually reset the TC54VN2702EZB713 using the manual reset input pin.

In summary, the TC54VN2702EZB713 can be used to provide reliable reset protection for a wide range of applications, thanks to its wide operating voltage range and adjustable reset time delays. Its external reset and voltage-input features make it ideal for low-power automotive and industrial applications, while its manual reset feature enables an easy fallback option in case of system instability.

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