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PMIC - Supervisors

PMIC supervisors are integrated circuits that monitor and supervise the operating conditions of a system. They provide reset signals and supply voltage monitoring to ensure stability of the system and ensure that it is running correctly.

TLC7701IP Application Field and Working Principle

The TLC7701IP is a high-performance supervisor manufactured by Texas Instruments. It is a low power, single voltage supervisor with push-pull output. It is mainly used for supervisor systems to monitor system power supplies and deliver reset signals in the event of a fault.

The TLC7701IP is designed with a variety of features including analog and digital monitoring functions, programmable delay times, and watchdogs to ensure system stability. It has an input voltage range of 0.9 V to 3.6 V, making it suitable for systems powered by low voltages. The device has an operating temperature range of -40 °C to +125 °C and is available in a variety of packages.

The device employs two main functions: the watchdogs, and the reset signal. The watchdogs detect the voltage of a monitored signal and reset the system if it falls below a predetermined level. The reset signal, on the other hand, is used to reset the system if a fault is detected. The reset signal is generated when the voltage applied to the input of the supervisor falls below a certain threshold.

The TLC7701IP is designed for two types of clocking: parallel and serial. In parallel clocking mode, the device acts as a clock supervisor. When it detects an input signal which fails to meet a set of predetermined criteria, it triggers an interrupt signal to reset the system. In serial clocking mode, the device will reset the system if an error is detected in any of the clocks or in the data.

In addition to voltage and clock supervision, TLC7701IP offers various other features, such as ESD protection, latch-up protection, polarity inversion, and under-voltage lockout. These features help ensure that the device performs reliably in its intended application.

The TLC7701IP is suitable for a wide range of applications, from consumer electronics and automotive safety systems to industrial equipment. It can be used in any application that requires reliable monitoring and resetting of a system. The advantages of using the TLC7701IP in these applications include low power consumption, reliable voltage monitoring, and cost-effective design.

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