MAX6719UTSFD2+

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The MAX6719UTSFD2+ is a supervisor IC (Integrated Circuit) from Maxim Integrated. It is classified under Power Management ICs (PMIC), specifically in the Supervisors category. In this article, we will take a closer look at the applications, characteristics and working principle of this part.

Applications

The primary applications of the MAX6719UTSFD2+ IC include power supply monitoring in battery operated networks. This supervisor IC monitors 2-cell Li-Ion or Li-Polymer batteries, mainly in notebook computer and other portable battery operated systems. It provides automatic reset and power fail signaling for safe and reliable battery back-up solutions. It also helps to extend battery life in systems by actively monitoring the battery voltage and informing the system to switch off as per conditions. Moreover, the MAX6719UTSFD2+ IC is also used in industrial and automotive applications, where mission-critical systems need failsafe operation and remote monitoring. The built-in fault detection system and low power consumption of this IC make it an ideal choice for such applications.

Characteristics

The MAX6719UTSFD2+ supervisor IC has an operating temperature range of -55°C to +125°C. It operates with power supply voltages ranging from 1.2V to 3.6V. It has an operating current of 27μA in normal mode, and 0.5μA in sleep mode. It supports up to 2-cell Li-Ion or Li-Polymer batteries, and is capable of detecting two different fixed thresholds, along with a configurable window reset. Moreover, it has a low quiescent current, fast reset response time of 7ms, and an open-drain output.

Working Principle

The working principle of the MAX6719UTSFD2+ supervisor IC is relatively simple. When the monitored voltage is within predetermined levels, the reset signal (active low) is held low by the IC and the system is operational. When the voltage drops below the lower threshold, the reset signal is asserted (active high) and the system is shut down until the voltage has increased to above the reset threshold. This ensures that the system is in a safe and reliable state at all times.

The MAX6719UTSFD2+ supervisor IC also features low-power monitoring, as it maintains a battery voltage monitor with only a few microamps of current. It constantly monitors the battery voltage and asserts a reset signal when the threshold values are exceeded, thus providing system protection in battery-operated systems.

Conclusion

In conclusion, the MAX6719UTSFD2+ supervisor IC from Maxim Integrated is an efficient, cost-effective solution for mission-critical applications. It is capable of monitoring two-cell Li-Ion or Li-Polymer batteries, and provides reliable reset and power fail signaling in battery-operated systems. It is also low power, making it suitable for environments where power conservation is critical, such as in industrial and automotive applications.

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