BQ 725-BQ24725

The BQ725 is a 2-cell Li+ battery SMBus charge controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection from Texas Instruments. It is a discontinued product, but it is still available for purchase from some distributors.

The BQ725 is a good choice for battery charge controllers in portable devices where cost is a major factor. It offers a basic set of features that are essential for safe and reliable battery charging.

Here are some of the benefits of using the BQ725:

• Affordable: The BQ725 is one of the most affordable battery charge controller solutions on the market.
• Easy to use: The BQ725 is easy to use with its SMBus interface. This allows for easy configuration and monitoring of the charger.
• Safe: The BQ725’s safety features help to protect the device and battery from damage due to overcharging, overdischarging, or short-circuit.

Here are some of the key features of the BQ725:

• Integrated power MOSFETs for charging and discharging the battery
• SMBus interface for configuration and monitoring
• Programmable charging current and voltage
• Constant current (CC) charging algorithm
• Battery safety features such as overcharge protection, overdischarge protection, and short-circuit protection

Applications

The BQ725 is a good choice for a variety of applications, including:

• Portable devices such as smartphones, tablets, and laptops
• Battery packs for power tools and other devices
• Solar energy systems
• Uninterruptible power supplies (UPS)

Conclusion

The BQ725 is a basic but reliable battery charge controller that is well-suited for use in cost-sensitive portable devices. It offers a good balance of features, performance, and cost.