Texas Instruments

BQ25505RGRR  

Specialized Power Management

The BQ25505RGRR is a highly integrated, high efficiency, step-down battery charger with Power Path Management from Texas Instruments (TI). This device is designed to provide a complete charging solution for single-cell lithium-ion (Li-ion) or lithium-polymer (Li-poly) batteries, as well as other chemistries like lithium manganese (LiMn) or lithium iron phosphate (LiFePO4).

Description:

The BQ25505RGRR is a compact, high-performance charging IC that offers a combination of charging and power management features. It is available in a small, thermally efficient QFN package, making it suitable for space-constrained applications.

Key Features:

1. High efficiency: The BQ25505RGRR offers high efficiency charging (up to 93%) and power path management, which helps reduce power consumption and improve overall system performance.
2. Input voltage range: It supports a wide input voltage range of 3.5V to 5.5V, making it suitable for various power sources, including USB or other external power supplies.
3. Programmable charging current and voltage: The charging current and voltage can be easily programmed using external resistors, allowing for customization to specific battery requirements.
4. Power path management: The device provides power path management, allowing it to efficiently manage power flow between the input source, battery, and load.
5. Battery protection: It includes various battery protection features, such as overcharge protection, over-discharge protection, short-circuit protection, and thermal regulation.
6. I2C communication: The BQ25505RGRR features an I2C communication interface, enabling users to monitor and control charging parameters, as well as receive status information from the device.
7. Low quiescent current: The device has a low quiescent current, which helps extend the runtime of the battery in the system.

Applications:

The BQ25505RGRR is suitable for a wide range of applications that require efficient charging and power management for single-cell lithium-ion or lithium-polymer batteries. Some common applications include:

1. Portable electronics: Smartphones, tablets, wearable devices, and other portable gadgets.
2. IoT devices: Smart home devices, sensors, and IoT gateways.
3. Wireless communication devices: Routers, access points, and other wireless communication equipment.
4. Medical devices: Portable medical equipment, such as glucose monitors and wearable health monitors.
5. Consumer electronics: Bluetooth speakers, headphones, and other battery-powered devices.

In summary, the BQ25505RGRR is a versatile and efficient charging solution for single-cell lithium-ion or lithium-polymer batteries, offering high efficiency, programmable charging parameters, and robust battery protection features. Its compact size and I2C communication interface make it suitable for a wide range of applications in portable electronics, IoT devices, and other battery-powered systems.

BQ25505RGRR Documents

Download datasheets and manufacturer documentation for BQ25505RGRR

Datasheets :

BQ25505      

PCN Packaging :

Retraction of Parts 27/Aug/2018       Pin One 07/May/2018      

Other Related Documents :

Power Management Guide      

HTML Datasheet :

BQ25505      

PCN Design/Specification :

Mult Dev Material Chg 29/Mar/2018       BQ25504/BQ25505/BQ25570 02/May/2019