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BQ21040DBVR Breakout
IC BATT CHG LI-ION 1CELL SOT23-6
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Design a Custom BoardAbout This Component
Single-cell lithium-ion battery charger IC in SOT-23-6 surface-mount package. Integrates charging control, current limiting, and thermal management for 1S Li-Ion applications. Commonly used in portable consumer electronics, power banks, and small rechargeable devices requiring compact charger solutions.
Package: SOT-23-6 · 6 pins
Why does this need a breakout?
SOT-23-6 packages house precision regulators, voltage references, and level shifters with 0.95mm pin pitch—too fine for hand soldering and incompatible with breadboards. A breakout board provides through-hole headers for prototype work, eliminating soldering difficulty while enabling quick circuit iteration. Essential for developing with compact analog and power management ICs.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | BQ21040DBVR |
| Package | SOT-23-6 |
| Pin Count | 6 |
| Battery Chemistry | Lithium Ion/Polymer |
| Charge Current - Max | 800mA |
| Interface | USB |
| Number of Cells | 1 |
| Voltage - Supply (Max) | 6.45V |
What's Included
BILL OF MATERIALS
- 1x BQ21040DBVR 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
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL