DS2782E+

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The DS2782E+ is a popular, cost-effective power-path and battery gas-gauge monitoring device from Maxim Integrated. This device is intended for use in systems that require battery or manual power-path management. It contains proprietary algorithms to accurately monitor a battery’s capacity and can provide reliable estimates of remaining run-time. The DS2782E+ supports many battery chemistries, making it a great choice for a wide range of applications.The DS2782E+ is typically used in portable power products such as medical, wearable, and wireless devices. By operating through a wide input working range, the DS2782E+ can be used in conjunction with power sources such as a battery charger, an AC adapter, and various renewable energy sources. This device can be used to reduce the complexity and cost of multiple protection solutions, providing an elegant power-path management solution that captures more power when available and conserves energy when required.The DS2782E+ employs Maxim\'s patented Multi-Sequence Intelligent Algorithms (MISA) for accurate battery capacity estimation which enables improved battery cycle life and provides a predictive mechanism for optimum battery charging. The MISA algorithm includes two main algorithms which work in series - voltage monitoring and coulomb counting. First, voltage monitoring assesses the initial battery capacity in the form of an estimate relative to the factory-measured capacity. This first estimate is refined by differentiating measurements of packs of cells operating simultaneously.The DS2782E+ also includes built-in ESD protection to guard against current spikes and surges. With superior EMC protection, the device is designed to meet electromagnetic radiation and susceptibility requirements as required by other external components. Its ESD and EMI protection, wide input voltage range, and low component count make the DS2782E+ ideal for use in both noisy and sensitive environments.The DS2782E+ provides protection against overcharge, overdischarge, and overcurrents, ensuring that a system’s battery is optimally managed and protected from potential damage. Additionally, the device offers temperature compensation that takes into account temperature variations to provide accurate estimates of battery capacity and remaining run-time. The DS2782E+ includes an integrated alert system to notify the application processor of conditions such as an over-temperature, an over-charge, or an over-discharge event. This alert system offers an alarm window/timer feature to help users determine whether a warning is merely one-time or represents a continually persisting alarm status. In addition, the DS2782E+ also offers many advanced features such as integrated communication interface, sleep modes, and off-time monitoring. The integrated communication interface allows the device to communicate with external systems such as microcontrollers and applications processors, while the sleep modes provide a low power state when the system is inactive. Finally, the off-time monitoring allows users to set a time-frame over which the battery can be safely left in a standby state with minimal self-discharging and no cell balancing, helping improve battery life and cycle count. Overall, the DS2782E+ provides an efficient and robust power-path and battery monitoring solution for portable and embedded applications. By combining a flexible working range with accurate motion estimation, superior ESD and EMI protection, and an integrated alert system, the DS2782E+ is an ideal choice for a wide range of portable power applications requiring reliable battery and power-path management.

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