BQ 24750

The BQ24750 is a highly integrated, single-chip battery charger IC from Texas Instruments. It is designed to charge lithium-ion and lithium-polymer batteries in portable devices such as smartphones, tablets, and laptops.

The BQ24750 features a number of advanced features, including:

• Dynamic Power Management (DPM) to optimize battery charging current based on the available input power
• Input power limiting to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously
• Highly-accurate current-sense amplifier to enable precise measurement of input current
• 6-V gate drives for better system efficiency
• Inrush-power limiting for instantaneous response to high input voltage multiplied by current
• AC Overpower protection (ACOP) to limit the input-switch power to the programmed level on the ACOP pin
• Ratiometric charge current and voltage programming allows high regulation accuracies, and can be either hardwired with resistors or programmed by the system power-management microcontroller using a DAC or GPIOs.
• Charges two, three, or four series Li+ cells, supporting up to 10 A of charge current
• Available in a 28-pin, 5×5-mm QFN package

The BQ24750 is a popular choice for battery charger ICs in portable devices because of its high integration, advanced features, and small size.

Here are some of the benefits of using the BQ24750:

• Reduced power consumption: The BQ24750’s DPM feature helps to reduce power consumption by optimizing the battery charging current based on the available input power. This can extend the battery life of portable devices.
• Improved system efficiency: The BQ24750’s 6-V gate drives help to improve system efficiency by reducing the power loss associated with switching external switches.
• Increased safety: The BQ24750’s inrush-power limiting and ACOP features help to improve system safety by protecting the AC adapter and the device from damage due to high input voltage or current.
• Flexibility: The BQ24750’s ratiometric charge current and voltage programming allows for high regulation accuracies and flexibility in programming the charger.
• High performance: The BQ24750 supports up to 10 A of charge current and can charge two, three, or four series Li+ cells, making it suitable for a wide range of applications.

Overall, the BQ24750 is a highly integrated, feature-rich battery charger IC that is well-suited for use in a variety of portable devices.