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BQ24040DSQR Breakout
IC BATT CHG LI-ION 1A 10-WSON
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Design a Custom BoardAbout This Component
Single-cell Li-Ion/Li-Pol battery charger with 1A charging capability in a compact 2x2mm WSON-10 package. Features programmable charge current and termination thresholds, input overvoltage protection up to 30V, and integrated thermal management with 125°C regulation and 150°C shutdown. Ideal for space-constrained portable devices including TWS earbuds, smartwatches, and wireless speakers.
Package: DFN-10 (2×2mm) · 10 pins
Why does this need a breakout?
This 0.4mm pitch DFN package is impossible to hand solder reliably and has exposed pads inaccessible to breadboards. A breakout board brings the I2C accelerometer to standard 0.1-inch headers, eliminating micro-soldering challenges and enabling rapid prototyping on breadboards or perfboard.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | BQ24040DSQR |
| Package | DFN-10 (2×2mm) |
| Pin Count | 10 |
| Battery Chemistry | Lithium Ion/Polymer |
| Charge Current - Max | 1A |
| Number of Cells | 1 |
| Voltage - Supply (Max) | 28V |
What's Included
BILL OF MATERIALS
- 1x BQ24040DSQR soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS