Texas Instruments BQ25155YFPR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.63 | $2.63 |
| 15+ | $2.55 | $38.25 |
| 25+ | $2.49 | $62.25 |
| 50+ | $2.35 | $117.50 |
| 100+ | $2.08 | $208.00 |
| N+ | $0.42 | 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 |
| Fault Protection | Over Current, Over Temperature, Over Voltage, Reverse Battery, Short Circuit |
| Charge Current - Max | 500mA |
| Battery Pack Voltage | 4.2V |
| Voltage - Supply (Max) | 3.6V |
| Interface | I2C |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-XFBGA, DSBGA |
| Supplier Device Package | 20-DSBGA |
| ROHS |  |
The Texas Instruments BQ25155YFPR is a linear battery charger designed for single-cell Lithium Ion/Polymer batteries. It provides a charge current up to 500mA with a target battery voltage of 4.2V. The device features an I2C interface for precise control and monitoring. Comprehensive protection includes over current, over temperature, over voltage, reverse battery, and short circuit safeguards. Housed in a 20-XFBGA (DSBGA) package, it is optimized for space-constrained wearable and portable electronics.
- Ultra-Small Footprint: The 20-XFBGA package is ideal for miniaturized wearable designs.
- Precise I2C Control: Digital interface allows fine-tuning of charge parameters and real-time monitoring.
- Comprehensive Safety: Includes reverse battery protection, a critical feature for consumer devices.
- Low Charge Current: 500mA is well-suited for small-capacity Li-Po cells, extending battery life.
Wearable Fitness Trackers
The compact 20-XFBGA package and low 500mA charge current are perfect for small Li-Po cells in fitness bands, where space is at a premium and safe charging is critical.
True Wireless Earbuds
Charging case and earbud batteries benefit from the I2C interface, allowing the host MCU to precisely control charge parameters and monitor battery status for a 1-cell 4.2V Li-Po.
Smart Watches
With reverse battery protection and a tiny footprint, this charger is ideal for smart watches that require reliable charging in a compact, low-profile design.
Medical Patches
Disposable or rechargeable medical sensor patches use small Li-Po cells; the BQ25155YFPR's low current and robust protection ensure safe operation in body-worn applications.
IoT Sensors
Wireless environmental sensors powered by a single Li-Po cell can leverage the I2C interface for dynamic charge current adjustment based on available power from energy harvesting sources.
- Q: What battery chemistry is supported?
- A: This charger is designed for Lithium Ion/Polymer batteries.
- Q: How many cells can it charge?
- A: It supports a single 1-cell battery configuration.
- Q: What is the maximum charge current?
- A: The maximum charge current is 500mA.
- Q: What is the battery voltage?
- A: The battery voltage is 4.2V.
- Q: What fault protection features are available?
- A: It includes Over Current, Over Temperature, Over Voltage, Reverse Battery, and Short Circuit protection.
- Q: What interface is used?
- A: It uses an I2C interface for configuration and monitoring.
BQ25155YFPR.pdf
- Q: What battery chemistry is supported?
- A: This charger is designed for Lithium Ion/Polymer batteries.
- Q: How many cells can it charge?
- A: It supports a single 1-cell battery configuration.
- Q: What is the maximum charge current?
- A: The maximum charge current is 500mA.
- Q: What is the battery voltage?
- A: The battery voltage is 4.2V.
- Q: What fault protection features are available?
- A: It includes Over Current, Over Temperature, Over Voltage, Reverse Battery, and Short Circuit protection.
- Q: What interface is used?
- A: It uses an I2C interface for configuration and monitoring.
