Texas Instruments BQ25123YFPT
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.98 | $3.98 |
| 15+ | $3.85 | $57.75 |
| 25+ | $3.77 | $94.25 |
| 50+ | $3.56 | $178.00 |
| 100+ | $3.14 | $314.00 |
| N+ | $0.63 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current, Timer, Voltage |
| Fault Protection | Over Current, Over Temperature, Over Voltage, Short Circuit |
| Charge Current - Max | 300mA |
| Battery Pack Voltage | 5.5V (Max) |
| Voltage - Supply (Max) | 20V |
| Interface | I2C |
| Operating Temperature | -40°C ~ 85°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 25-XFBGA, DSBGA |
| Supplier Device Package | 25-DSBGA (2.53x2.47) |
The BQ25123YFPT from Texas Instruments is a linear battery charger for single-cell Lithium Ion/Polymer batteries. It delivers a maximum charge current of 300mA, ideal for low-power portable devices. The charger supports a battery pack voltage up to 5.5V and includes over current, over temperature, over voltage, and short circuit protection. Its I2C interface allows precise control and monitoring. Available in a 25-XFBGA/DSBGA package, it operates across -40°C to 85°C (TJ).
- Precise low-current charging: 300mA is perfect for small batteries in wearables.
- I2C programmability: Enables fine-tuned charging profiles.
- Comprehensive protection: Over current, over temperature, over voltage, and short circuit safeguards.
- Ultra-compact package: 25-XFBGA/DSBGA minimizes PCB footprint.
Wearable Fitness Trackers
The low 300mA charge current is ideal for small-capacity batteries in fitness bands, ensuring safe and gentle charging.
True Wireless Earbuds
Compact 25-XFBGA package fits tiny charging cases while I2C control allows precise charge management.
Smart Watches
I2C interface enables dynamic current adjustment for varying battery states in smart wearables.
Medical Patches
Industrial temperature range (-40°C to 85°C) supports reliable operation in body-worn medical devices.
IoT Sensors
Low charge current and comprehensive protection make it suitable for battery-powered environmental sensors.
- Q: What battery chemistry does the BQ25123YFPT support?
- A: It supports Lithium Ion/Polymer batteries.
- Q: How many cells can this charger handle?
- A: It is designed for 1 cell.
- Q: What is the maximum charge current?
- A: The maximum charge current is 300mA.
- Q: What is the battery pack voltage?
- A: The battery pack voltage is 5.5V (Max).
- Q: What fault protections are included?
- A: It includes Over Current, Over Temperature, Over Voltage, and Short Circuit protection.
- Q: What interface does it use?
- A: It uses an I2C interface.
- Q: What battery chemistry does the BQ25123YFPT support?
- A: It supports Lithium Ion/Polymer batteries.
- Q: How many cells can this charger handle?
- A: It is designed for 1 cell.
- Q: What is the maximum charge current?
- A: The maximum charge current is 300mA.
- Q: What is the battery pack voltage?
- A: The battery pack voltage is 5.5V (Max).
- Q: What fault protections are included?
- A: It includes Over Current, Over Temperature, Over Voltage, and Short Circuit protection.
- Q: What interface does it use?
- A: It uses an I2C interface.

BQ25123YFPT.pdf