MAX6709MUB+

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MAX6709MUB+ Application Field and Working Principle

The MAX6709MUB+ is an example of a low-power, single-channel supervisor circuit designed to monitor the supply voltage (VKB) and an input voltage (VIN) on a system\'s power-supply lines. The MAX6709MUB+ is designed to detect very low VIN and VKB signals, but can be configured to provide additional protection in higher voltage ranges. The supervisor circuit was designed to protect motherboard components, ensuring proper system operation in cases where multiple power supplies are used.

The MAX6709MUB+ is used in a variety of application fields, including industrial, automotive and consumer electronics. It is suited for use in applications where supply-voltage monitoring is critical in order to ensure system reliability and operation. The MAX6709MUB+ can be used for monitoring of main power supplies, battery-backup systems, power ICs, system versus supply-voltage monitoring, and other input signals.

The MAX6709MUB+ is an SOT-23 package supervisor with two digital outputs, an active-high power-good (PG) and an active-low reset (RST) output. The PG output will go active when the voltage on the VKB line rises above a preset threshold level, and the reset output will go active when the voltage on the VIN line drops lower than another preset threshold level. If a valid standby voltage is not detected on the VKB line, the PG output will remain low and the reset output will remain high.

The MAX6709MUB+ supervisor circuit is designed to work with voltages between 0.9V and 8.0V, and features a power-supply current of 1.2μA. It has an operating temperature of -40°C to 85°C, and is available in two different styles - the MAX6709RUB+ and the MAX6709MUB+.

The MAX6709MUB+ supervisors offer excellent low-standby current, low quiescent current, and low operating temperature. Moreover, they feature a high internal operating temperature and low-voltage detection threshold. The MAX6709MUB+ supervisors are RoHS compliant, making them suitable for use in lead-free electronics.

The MAX6709MUB+ supervisors also feature a novel algorithm that provides a sensing voltage accuracy of +/-1%. This algorithm eliminates the need for an additional voltage reference for use in systems with multiple power supplies and varying line voltages. This algorithm is also capable of detecting current leakage, shorted input, and output, providing system designers and users with additional reliability and accuracy.

Overall, the MAX6709MUB+ is a low-power supervisor suitable for a wide range of application fields, including industrial, automotive and consumer electronics. It offers excellent low-standby current, low quiescent current, and low operating temperature, as well as a high internal operating temperature and low-voltage detection threshold. Moreover, it is RoHS compliant and features a novel algorithm that offers a sensing voltage accuracy of +/-1%.

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