MAX6887EETE+T

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POWER Management ICs (PMICs) provide the necessary power supplies to downstream system components. Many modern systems depend on clean power supplies with generous tolerances to operate reliably. They are the cornerstone of any power distribution system, ensuring the availability of clean and stable power to the components. PMICs are typically categorized according to their application fields: Point of Load (POL), Battery Management Systems (BMS), LED Drivers, and Supervisors. MAX6887EETE+T is a supervisor chip that falls in the category of supervisors.

The MAX6887EETE+T application field is ideal for power-failure monitoring, and under-voltage/over-voltage monitoring for 3V to 5.5V systems. It is designed to detect processor core voltage drop and applied to power failure and low-battery-voltage monitoring, it can generate a hardware reset when the monitored voltages fall below a programmable threshold. It was designed to be used in various applications from white goods to automotive, industrial, and computer electronic.

The MAX6887EETE+T working principle is embedded in its ability to monitor voltage drop. It contains an on-board regulator and low-dropout (LDO) comparison reference, which allow it to operate in either standalone devices or microprocessor-driven systems. It compares the system’s input voltage to the LDO comparison reference, and produces either a high or low signal output based on the comparison result. With its 1.8V internal regulator, the LDO can provide power even if the input voltage droops lower than its specified value. The MAX6887EETE+T is also able to detect over-voltage events with its built-in over-voltage protection (OVP) circuit.

Aside from its active protection feature, the MAX6887EETE+T also features an internal EEPROM and a thermal diode, which are used to store important configuration data such as thresholds and settings. The thermal diode takes temperature readings, which can be used to prevent temperature-induced runaway events, improve reliability, and even protect downstream system components from overheating. The MAX6887EETE+T has a typical operating temperature range of -40°C to 125°C, making it suitable for a wide range of applications.

The MAX6887EETE+T is a versatile and reliable supervisor chip, with a large array of features designed to maximize the reliability of power supply systems. In its application field, it can monitor and actively prevent voltage drops and over-voltage events. It also contains data storage and temperature monitoring features. Its temperature range makes it suitable for applications ranging from white goods to automotive, industrial, and computer electronic, making it a great choice for any power supply system.

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