Overview
The BQ24040DSQR is a highly integrated Li-Ion and Li-Pol battery charger and system power-path management device produced by Texas Instruments. This IC supports single-cell Li-Ion and Li-Pol battery packs, ensuring safe, reliable, and efficient battery charging for various portable and wearable electronic devices. It features advanced functions such as temperature sensing, input over-voltage protection, and programmable charge currents, making it a comprehensive solution for battery management in modern electronics.
Key Specifications
| Parameter | Value |
|---|---|
| Number of series cells | 1 |
| Maximum charge current | 1 A (programmable up to 1000mA) |
| Input voltage range | 3.5 V to 6.5 V |
| Absolute maximum input voltage | 30 V |
| Battery charge voltage | 4.2 V |
| Control topology | Linear |
| Control interface | Standalone (RC-Settable) |
| Package type | WSON-10-EP (2x2 mm) |
| Pin count | 10 |
| Operating temperature range | 0°C to 125°C |
Key Features
- High accuracy charge voltage and current regulation loops
- Pin selectable USB 100 mA and 500 mA maximum input current limit
- Programmable charge current up to 1000mA
- Automatic recharge capability from over-discharge conditions
- BAT temperature thermistor monitoring (JEITA profile)
- IC thermal regulation to reduce charge current if internal temperature threshold is exceeded
- Input over-voltage protection (OVP)
- Input voltage threshold to maximize adaptor power (VINDPM)
Applications
The BQ24040DSQR is designed for use in various portable and wearable electronic devices that require efficient and safe battery charging. This includes smartphones, tablets, smartwatches, fitness trackers, and other handheld devices. Its integrated features make it an ideal choice for applications where space is limited and reliability is crucial.
Q & A
- Q: Does the BQ24040DSQR support fast charging?
A: Yes, the BQ24040DSQR supports programmable charge current up to 1000mA, providing relatively fast charging for Li-Ion and Li-Pol batteries. - Q: Can the BQ24040DSQR recover from a battery over-discharge condition?
A: Yes, the BQ24040DSQR features automatic recharge capability, which restarts the charging cycle if the battery voltage falls below a certain threshold, ensuring recovery from over-discharge conditions. - Q: What is the maximum input voltage for the BQ24040DSQR?
A: The absolute maximum input voltage for the BQ24040DSQR is 30 V. - Q: What is the operating temperature range of the BQ24040DSQR?
A: The operating temperature range of the BQ24040DSQR is from 0°C to 125°C. - Q: Does the BQ24040DSQR have thermal regulation?
A: Yes, the BQ24040DSQR has IC thermal regulation to reduce the charge current if an internal temperature threshold is exceeded. - Q: What type of battery chemistry does the BQ24040DSQR support?
A: The BQ24040DSQR supports single-cell Li-Ion and Li-Pol battery packs. - Q: What is the package type of the BQ24040DSQR?
A: The BQ24040DSQR comes in a WSON-10-EP (2x2 mm) package. - Q: Does the BQ24040DSQR have input over-voltage protection?
A: Yes, the BQ24040DSQR features input over-voltage protection (OVP). - Q: How many pins does the BQ24040DSQR have?
A: The BQ24040DSQR has 10 pins. - Q: What is the typical operating supply voltage for the BQ24040DSQR?
A: The typical operating supply voltage for the BQ24040DSQR is up to 30 V.
