Description:bq2417x 1.6-MHz Synchronous Switched-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger With Integrated MOSFETs and Power Path Selector
The recommended layout and placement for the BQ24172RGYT involves placing the device close to the battery, using a solid ground plane, and keeping the input and output capacitors close to the device. Additionally, the device should be placed away from high-current carrying traces and heat sources.
To optimize the charging current for your specific battery, you can adjust the ICHG pin to set the charging current. The ICHG pin is a resistor-programmable input that allows you to set the charging current between 0.1A and 2.5A. You can use the formula ICHG = 1000 / RICHG to calculate the required resistor value for your desired charging current.
The EN pin is an active-low enable input that allows you to turn the charger on and off. When the EN pin is low, the charger is enabled, and when it's high, the charger is disabled. You can use the EN pin to control the charging function, for example, to turn off the charger when the battery is fully charged or when the system is in low-power mode.
The BQ24172RGYT provides several status pins to monitor the charging status and fault conditions. The CHG pin indicates the charging status, the FAULT pin indicates a fault condition, and the TS pin indicates a thermal shutdown. You can use these pins to monitor the charging status and take appropriate action in case of a fault condition.
The BQ24172RGYT has a thermal shutdown feature that turns off the charger when the junction temperature exceeds 150°C. To ensure reliable operation, it's essential to provide adequate thermal dissipation, such as using a heat sink or a thermal pad, and to avoid blocking the airflow around the device.
Trust Checks
This model has been provided by an expert contributor.
Expert Contribution
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
BQ24172RGYT Overview
Use the download button to access the BQ24172RGYT schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like BQ241,
or try a keyword search, such as Power Management Circuits
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
