DS2760AX/T&R

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The DS2760AX/T&R is a linear charger and fuel gauge the combines with a battery protection module. It is used in a variety of applications ranging from low-power low-cost portable applications to high-power automotive systems. The DS2760AX/T&R is a highly integrated and feature-rich device, allowing designers to minimize device size and cost while maximizing performance. It offers a comprehensive set of features to manage a battery, including safety protection and fuel gauge functions.

Application Field

The DS2760AX/T&R is a compact, single-chip battery management solution that integrates all of the analog, digital, and power management functions required to operate and protect a battery, as well as to monitor various environmental and health parameters of the system. It can be used in a wide range of applications, including portable consumer and industrial products, automotive systems, automotive emergency switchover systems, UPS systems, portable energy generators, and renewable energy systems.

The DS2760AX/T&R provides an accurate and fast measurement of the battery voltage and its current. It can measure the battery charge and discharge currents, status and temperature. The device integrates a fast, low-dropout (LDO) voltage regulator, a sensing amplifier, and a safety switch that turns the charger off in case of an overvoltage condition. It also includes a current sense amplifier that can measure the input or output current of the system, as well as a high-precision analog-to-digital converter (ADC). The device also includes an on-chip temperature sensor that can measure the temperature of the battery and/or the environment.

The DS2760AX/T&R has one of the most comprehensive set of features available for managing and protecting a battery. It provides protection against overcharging, overdischarging, over-temperature, reverse-charging and reverse-current, as well as a safety timer for charging and safety switches for boosting the supply voltage in emergency scenarios.

Working Principle

The DS2760AX/T&R works by monitoring the battery voltage and determining the optimal charging profile for the battery. Depending on the battery voltage, it will adjust the charge current and current sense voltage accordingly. When the battery reaches a full charge or near full charge, the chip will then decrease the charge current and the charge voltage to trickle charge the battery. At the same time, the chip will also monitor the temperature of the battery and the environment.

The chip also has a reverse-charging protection and an overvoltage protection feature. The reverse-charging protection will prevent the battery from being drawn into a negative voltage, while the overvoltage protection will prevent the battery voltage from exceeding the set maximum. The chip also includes an adjustable safety timer and a safety switch to boost the output voltage in emergency scenarios.

The DS2760AX/T&R also includes a current sense amplifier that can measure the input or output current of the system. This allows the chip to accurately determine the amount of energy that is being stored in the battery, and then adjust the power consumption accordingly. This helps to ensure a more efficient system and a longer battery life.

The DS2760AX/T&R also has an integrated fuel gauge, which monitors the amount of energy that is stored in the battery and displays it on an LED. This helps the user keep track of the battery levels and make sure that the battery is properly charged and discharged. The chip also includes a full range of communication protocols such as I2C, SPI, and UART, allowing it to communicate with other devices and systems.

In summary, the DS2760AX/T&R is a versatile and feature-rich device that enables designers to minimize size and cost while maximizing performance and battery life. It provides an accurate and fast measurement of the battery voltage and current, as well as a comprehensive set of features to manage and protect the battery. It is ideally suited for a variety of applications including consumer, automotive, UPS, and renewable energy systems.

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