BQ24188EVM-691

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The BQ24188EVM-691 evaluation board, which belongs to the field of Evaluation and Demonstration Boards and Kits, is designed to help users evaluate and demonstrate the Texas Instruments TI BQ24188EVM-691. This board includes the TI proprietary BQ24188EVM-691 and a back channel, allowing the user to evaluate its performance and features.

BQ24188EVM-691 is a single-cell (Li-ion or Li-polymer) charger integrated circuit (IC), designed for space-constrained applications, like mobile phones, PDAs and GPS devices. It provides an adjustable, low voltage input power source, allowing for flexibility in the battery type and capacity. It also contains a low-resistance battery switch that can be used to disconnect the battery from the load. The device also has a robust protection technique against reverse current, overvoltage, overcurrent, overtemperature, and short-circuit.

The BQ24188EVM-691 evaluation board includes an adjustable thermal solution that meets IEC requirements. The board also uses implementation of external voltage dividers, which provide a low-resistance connection to the power source for accurate charge current monitoring. Additionally, the integrated circuit also includes reverse current protection from both the source and battery, making it highly reliable. Furthermore, the board provides extended battery discharge current and charge current monitoring capabilities.

The working principle of the BQ24188EVM-691 board is simple. When power is applied to the board, the integrated circuit (IC) turns on and detects the presence of a battery and output voltage. The IC then communicates with the back channel to acquire temperature, voltage, and current information from the battery. Based on this information, the IC will then detect the battery charge state and select the appropriate charge current. The IC then adjusts the output voltage to the current set point, overcoming resistance posed by the battery. During operation, the IC monitors the voltage, current, and temperature information of the battery to ensure safe conditions.

Once the battery is fully charged, the integrated circuit automatically stops charging to avoid overcharging the battery. The BQ24188EVM-691 evaluation board includes an adjustable thermal solution that is designed to meet IEC specifications. Additionally, the board supplies active power management features and pre-programmed safety functions. All of these features, combined with a robust protection technique, create a reliable and cost-effective solution for battery charging.

The BQ24188EVM-691 evaluation board can be used for a variety of applications, such as mobile phones, PDAs, and GPS devices. It is a simple solution for users who are looking for an efficient, low voltage input, and high charge current battery charger integrated circuits. With the integrated protection against overvoltage, overcurrent, overtemperature, and short-circuit, the BQ24188EVM-691 evaluation board ensures a reliable battery charging experience.

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