TLC7701ID

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Power management integrated circuit (PMIC) refers to an integrated circuit that takes overall system power management control, including power supply, distribution and processing. Supervisors, one type of the PMIC, is a circuit that continuously monitors the voltage system. When the voltage level drops below or rises above a predetermined value, corresponding warning, reset and protection functions can be exerted. The TLC7701ID is an application field of the supervisor PMIC that provides a 1-channel voltage monitor.The TLC7701ID combines reset signal outputs, adjustable trip points, and status flags into a single package, making it a reliable solution for many precision voltage monitoring applications. It can monitor the voltage of any signal sent to it and then automatically generate a reset signal, trouble signal, or other warning when the voltage exceeds set limits. Besides, it also has power-on reset and manual reset functions.The TLC7701ID’s operating voltage range is limited to between 2.7 V to 5.5 V. It can monitor input voltage levels as low as 1.0 V or as high as 6.0 V. The response time of the TLC7701ID is 10 μs typical, 0.5 ms for exact reset. The output reset duration also can be adjusted with the external timing capacitor. It is also able to save power with shutdown mode, which will disconnect the power when voltage is higher than the last trip point.The TLC7701ID can be used in many different applications, such as microprocessors, computer systems or cell phone systems, especially in the field of power management and voltage monitoring. A common application would be the power-on reset control of a microcontroller, where it will sense the rise and fall of the voltage at the power node of the microcontroller. If the over voltage or under voltage occurs, the TLC7701ID will alert the microcontroller to generate reset signals, protecting the microcontroller and other components in the system.The working principle of the TLC7701ID is based on an internal voltage reference that compares the voltage at its input with the voltage at the reset input pin. When this voltage exceeds the trip voltage, the TLC7701ID generates a reset pulse based on its internal timing. Its output pulse may be an active low or active high reset pulse based on the voltage at the reset input pin being greater or less than the trip level, respectively. Furthermore, the power-on reset and manual reset of the TLC7701ID can also be affected by the voltage at its reset input pin.In conclusion, the TLC7701ID is a powerful and reliable supervisor PMIC for voltage monitoring applications. By comparing the voltage at its input with the predetermined values, it can provide fast and accurate reset, trouble and other warning signals, protecting the overall system.

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