BQ2057WSNTRG4

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The BQ2057WSNTRG4 is a lithium battery management IC from Texas Instruments that serves as a charge regulator for both single-cell and multi-cell batteries. It supports fast charging and balancing of lithium-ion (Li-ion) batteries, as well as mixed-cell, and is especially suitable for applications in which high capacity and low-cost are important. This battery charger is part of the Power Management IC (PMIC) family of battery charger ICs, and is specifically part of the PMIC - Battery Chargers category.

The BQ2057WSNTRG4 provides excellent versatility and ease of use, which makes it suitable for a wide range of applications. Its small package size and low power consumption also make it ideal for use in hand-held battery systems. One of its most attractive features is its monitoring functionality that can deliver information about the battery state, such as overvoltage, over-temperature, overcurrent and cell imbalance. The BQ2057WSNTRG4 can also intelligently control the charging profile to maintain the battery health.

The BQ2057WSNTRG4 features an integrated power switch and charge control circuitry that enables a flexible charging package. The device includes dedicated pins for connection to a battery, a DC charger, and an AC Adapter. Additionally, the device provides a controlled turn-on switch to prevent the system from initial over-voltage and turn-on surge currents. This helps reduce the EMI susceptibility of the system, since the charging current has already been limited to a safe level.

The BQ2057WSNTRG4 also supports a wide range of charging options, including full-timer, two-stage constant current/constant voltage (CC/CV), pre-conditioning mode, trickle mode and reverse trickle mode. The device also features measurement and regulation of the temperature of the battery, which ensures the safety and reliability of the battery. Additionally, the BQ2057WSNTRG4 provides a wide range of protection features, including overvoltage, over-current, thermal protection, and cell imbalance protection.

The BQ2057WSNTRG4 features an adjustable charge termination current, adjustable discharge current limit and adjustable fast charge current limit. Additionally, the device supports adjustable input voltage regulation and adjustable current regulation, as well as a standalone charge termination signal. This enables the charging of both single-cell and multi-cell batteries.

Overall, the BQ2057WSNTRG4 is a highly versatile and low-cost battery management solution for single-cell and multi-cell lithium-ion batteries. It is specifically part of the PMIC - Battery Chargers category and provides a variety of features that make it ideal for a wide range of applications. The device offers excellent power efficiency, due its low power consumption, and reliable protection and monitoring functionality that ensure the safety and longevity of the battery.

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