BQ25871YFFR

What is BQ25871YFFR?

BQ25871YFFR is an integrated circuit (IC) from Texas Instruments that is designed for charging Lithium-ion and Li-polymer batteries. It is a synchronous buck-boost battery charger IC with an integrated display driver, allowing for a smooth transition between buck and boost operation. The device includes an integrated current-sense amplifier, overvoltage protection, and programmable charge current. It is optimized to provide a high level of efficiency, with a maximum efficiency of 96%. This device is suitable for battery-powered applications, such as wearable and portable electronics, as well as healthcare, automotive, and industrial applications.

The BQ25871YFFR is a highly integrated device that provides a complete charging solution for Lithium-ion and Li-polymer batteries. It supports a wide input voltage range from 3.2V to 20V and offers multiple charging current options. The device also includes integrated overvoltage protection and a programmable charge current, allowing the user to optimize the charging process. The current-sense amplifier and integrated display driver allow for accurate current monitoring and display of charge status. The device is RoHS compliant and is available in a 3mmx3mm QFN package.

How to use BQ25871YFFR?

Using the BQ25871YFFR is a straightforward process. First, the user should set the charge current and overvoltage protection parameters by programming the device. The device should then be connected to a power source and the battery. After the battery voltage has been monitored and the device is ready to charge, the user should enable the charging process by asserting the CHG pin. The device will then start charging the battery and the charge status can be monitored via the integrated display driver. Once the battery is fully charged, the device will automatically stop charging and enter a standby state.

Overall, the BQ25871YFFR is a highly integrated IC designed to provide an efficient and reliable charging solution for Lithium-ion and Li-polymer batteries. It is suitable for a wide range of battery-powered applications, including wearable and portable electronics, healthcare, automotive, and industrial applications.

Features and Specifications

• Input voltage range: 3.2V to 20V
• Charge current: 0.1A to 4A
• Maximum efficiency: 96%
• Integrated overvoltage protection
• Programmable charge current
• Current-sense amplifier
• Integrated display driver
• RoHS compliant
• Available in a 3mmx3mm QFN package

Customer Reviews and Scores

The BQ25871YFFR has been well-received by customers. It has earned a 4.9/5-star rating on Texas Instruments’ website and a 4.8/5-star rating on Digi-Key’s website. Customers have praised the device for its wide input voltage range, efficient operation, and ease of use.

Pros and Cons

Pros:
• Wide input voltage range
• High efficiency
• Integrated overvoltage protection
• Programmable charge current
• Current-sense amplifier
• Integrated display driver
• RoHS compliant

Cons:
• Relatively large package size
• Limited availability

FAQ

Q: What is the maximum efficiency of the BQ25871YFFR?

A: The device has a maximum efficiency of 96%.

Q: Does the BQ25871YFFR have an integrated display driver?

A: Yes, the device includes an integrated display driver, allowing for accurate current monitoring and display of charge status.

Q: What is the input voltage range of the BQ25871YFFR?

A: The BQ25871YFFR has an input voltage range of 3.2V to 20V.

Q: What package is the BQ25871YFFR available in?

A: The device is available in a 3mmx3mm QFN package.

Conclusion

The BQ25871YFFR is an integrated circuit (IC) from Texas Instruments that is designed for charging Lithium-ion and Li-polymer batteries. It is a highly integrated device that provides a complete charging solution, with a wide input voltage range, multiple charging current options, an integrated overvoltage protection, a programmable charge current, a current-sense amplifier, and an integrated display driver. The device has been well-received by customers, earning a 4.9/5-star rating on Texas Instruments’ website and a 4.8/5-star rating on Digi-Key’s website. Overall, the BQ25871YFFR is an efficient and reliable solution for charging Lithium-ion and Li-polymer batteries.