MAX16055CAUB+

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PMIC - Supervisors is an essential component of power management systems. The MAX16055CAUB+ is an integrated voltage supervisor that provides various features to protect and monitor the power delivery of a system. In this article, we will discuss the application field and working principle of MAX16055CAUB+.

The MAX16055CAUB+ is a high performance version of the MAX16055CAUB supervisor, designed for 3.3/4.3/5.0V applications. It provides appropriate supply voltage for a wide range of electronic systems including embedded, industrial and consumer applications. The device is suitable for use in automotive and packaged consumer products, as well as other power-sensitive applications that require accurate voltage monitoring and sequence sequencing.

The MAX16055CAUB+ offers a wide range of features that make it an ideal choice for voltage supervisor applications. The device supports two input voltage ranges – 4.3V to 5.5V and 3.3V to 5.5V – and offers a programmable switching threshold and recovery-time delay. Additionally, the MAX16055CAUB+ provides an adjustable undervoltage flag (UVF) output with adjustable delay times, which can be used to indicate when the supply voltage drops below a certain level.

The MAX16055CAUB+ also features a robust thermal protection system, providing protection against voltage spikes, overvoltage and undervoltage conditions. The device also provides a selectable power-on reset (POR) feature and a Power Good (PG) indicator, both of which can be used to detect any irregular input voltage conditions, as well as an open-drain active-high output (RIO) for system power reset.

From a working viewpoint, the MAX16055CAUB+ features a built-in comparator that provides hysteresis and check voltage monitoring, which helps to provide reliable reset/power-on signals. The voltage supervisor has two input pins – one for the main supply, and one for the back-up supply, both of which can be monitored simultaneously. Whenever the voltage on either input drops below the programmed threshold, an active-high reset signal is generated and the RIO pin is driven high. If the supply voltage rises above the set threshold, the reset signal is deasserted and the RIO pin goes low.

In conclusion, the MAX16055CAUB+ provides a complete solution for 3.3/4.3/5V applications, featuring an adjustable overvoltage, undervoltage and thermal protection, as well as a selectable power-on reset and Power Good indicator. It is ideal for applications where precision voltage monitoring and sequence control are essential.

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