MAX6785TCC+

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PMIC - Battery Management, the MAX6785TCC+ is a step-down converter with smart charge control, precise voltage and current sensing, and programmable system reset. It integrates a precise voltage regulator with a current-limiting power MOSFET, enabling high-efficiency operation in constant current, constant voltage, and pre-regulation charging modes.

The MAX6785TCC+ is specifically designed to support smart battery applications, such as multi-cell lithium-ion (Li-ion) or lithium-polymer (Li-poly) packs. It has a high-accuracy system reset function, a comprehensive safety timer, current, and voltage monitoring, and adjustable protection levels, making it ideal for safety-critical applications like medical and military mobile device batteries.

Application Field

The MAX6785TCC+ is an ideal IC for battery management and charging control in multiple applications, such as medical and military mobile devices, to safely charge and optimize the performance of the Li-ion or Li-poly packs. It is also a suitable choice for industrial equipment and portable consumer electronics.

Working Principle

The MAX6785TCC+ contains an integrated voltage regulator that works based on a pre-determined regulation point. This regulation point is defined as the output voltage, current, and/or charge level. It can also be programmed to dynamically adjust the output to accommodate varying load currents, temperatures, and voltage variations.

The integrated current-limiting feature uses the sensing of power stage output current and MOSFET drain-source voltage to ensure the maximum output current limit is not exceeded. This makes it suitable for charging Li-ion or Li-poly packs while providing safe operation and reliable protection. In addition, the MAX6785TCC+ provides adjustable protection thresholds and factory preset timing during system reset.

The MAX6785TC+ also features a comprehensive safety timer with internal voltage and current monitors. The safety timer feature protects the device from overtemperature. The internal voltage and current monitors provide information about the state of the battery for further optimization.

The MAX6785TC+ delivers fast changing, high-efficiency charging and current protection. It is ideal for a wide range of applications from medical to industrial. It provides a powerful solution for safely charging, charging control, and battery management needs.

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