MAX808LESA+T

Power Management Integrated Circuits (PMICs) are essential in today’s mobile devices and other electronics requiring high efficiency, low power draw and excellent power management. PMICs are responsible for controlling and regulating power signals, providing power to other components, protecting against overvoltage, undervoltage and thermal overload, as well as managing multiple supplies with sophisticated sequencing protocols.

Supervisors are PMICs that combine power-on reset and power supply sequencing circuitry, providing the necessary integrity and precision to ensure that device systems come up properly and alert the system in the event of any power anomalies. One such supervisor, the MAX808LESA+T, is a versatile, highly integrated IC suitable for cost-sensitive applications in a variety of market segments.

MAX808LESA+T Application Field

The MAX808LESA+T is a low-cost, low-voltage, low-power supervisor with an integrated high-accuracy reset circuit. It is designed for systems requiring an efficient, reliable and cost-effective power supply management solution, capable of accurately and quickly handling power-on reset, power-down reset and a variety of power supply sequencing scenarios. Suitable applications for the MAX808LESA+T include hand-held medical devices and wearables, as well as power supplies and battery-powered devices, among others. The IC is offered in a tiny 7-pin SOT-363 package and is available in both leaded and lead-free options, making it a great choice for low profile designs.

MAX808LESA+T Working Principle

At its heart, MAX808LESA+T consists of two main components: a digital monitor combined with a low-power supervisor. The monitor continuously monitors the input voltage and outputs a reset signal when the voltage drops below the pre-set threshold. The reset signal is used to reset the system and prevent damage due to under-voltage conditions. The supervisor is responsible for generating a power-on reset (POR) signal when the supply voltage rises above the set threshold, and a power-down reset (PDR) signal when the supply voltage drops below the set threshold. Furthermore, the supervisor is able to sequence multiple supplies depending on their threshold values, offering superior control and flexibility.

The MAX808LESA+T is a secure and reliable solution, as it features a wide range of features to protect the system, including on-chip ESD protection, a watchdog timer, and hysteresis and tolerance for peak power interruptions.

The MAX808LESA+T is a great choice for cost-sensitive applications, as it allows for precise power management and reliable, accurate reset functions in a tiny, low power package. Furthermore, its versatile feature-set enables it to provide enhanced protection for a range of applications.