BQ2004EPNG4

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Power management ICs (PMICs) such as the BQ2004EPNG4 are used to efficiently manage and monitor the power supply to electronic devices. The BQ2004EPNG4 is a linear battery charger with I2C bus and input current-limiting capabilities. It is designed specifically for applications such as mobile phones, personal digital assistants (PDAs), and other portable devices. This PMIC is capable of charging various types of battery chemistries, such as lithium-ion, lithium-polymer, nickel-cadmium, and nickel-metallhydrid.

The BQ2004EPNG4 is specified to operate from a 4.2V to 6.0V supply voltage and can be configured for either single cell or dual cell battery packs. It provides fast, unpredictable, and programmable charging for single or double cell portable devices used in different applications. The BQ2004EPNG4 operates as low as 0.6V from the input voltage and can be used in battery packs up to 4.2V. It also includes a three-stage charger algorithm which allows the user to adjust the working parameters of the charging process.

The BQ2004EPNG4 contains an I2C interface and input current-limiting protection, which provides the user with a means of protecting against over-current situations by limiting the input current based on the user-defined setting. The I2C interface allows the user to monitor the charge status, current, voltage, temperature, and other parameters during the charging process. Additionally, the BQ2004EPNG4 includes an under-voltage lockout (UVLO) protection which prevents the charging process from being started when the input voltage is too low. This helps to protect the battery from damage due to over-discharge.

The BQ2004EPNG4 is designed for cost-sensitive applications with a wide range of features. It features an adjustable charge current setting, selectable voltage-clamping protection, over-temperature protection, and six LED indicators. It includes a selectable charge rate of up to 1.5A maximum and advanced safety features such as reverse-current protection, over-temp protection, over-voltage protection, and short-circuit protection. The BQ2004EPNG4 also provides a programmable end-of-charge voltage which allows the user to tailor the charge characteristics for different types of batteries. The device also features adjustable input current-limiting to protect against overload conditions.

The BQ2004EPNG4 is well-suited for applications such as smartphones, feature phones, and portable media players. It is also used in other applications such as medical instruments, vibration motors, and power banks. This PMIC offers a wide range of features and configurability which make it suitable for a variety of different applications. With its three-stage charge algorithm, configurable parameters, and safety features, the BQ2004EPNG4 can help to safely and efficiently charge your device.

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