| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
7,990 pcs
|
7990 pcs | On Request | 1 | On Request | On Request | 21+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Absolute Maximum Input Voltage | |
| Battery Charge Voltage (Minimum/Maximum) | |
| Battery Chemistry | |
| Battery Pack Voltage | |
| Battery Voltage Regulation Accuracy | |
| Buck Regulator Output Voltage | |
| Charge Current | |
| Charge Current (Maximum) | |
| Control Interface | |
| Current | |
| Fault Protection | |
| Input Voltage (Minimum/Maximum) | |
| Interface | |
| Load Switch Output Current | |
| Mounting Type | |
| Number of Cells | |
| Number of series cells | |
| Operating Temperature | |
| Programmable Features | |
| Quiescent Current (IQ) | |
| Ship Mode Battery Quiescent Current | |
| Supplier Device Package | |
| Supplier Package | |
| Termination Current | |
| Voltage |
The BQ25121AYFPR from Texas Instruments is a compact and highly integrated battery charger IC suitable for wearables and IoT applications. It supports Li-Ion/Li-Polymer battery chemistries and provides a maximum charge current of 300 mA.
Key electrical specifications include an input voltage range of 3.4V to 5.5V, with an absolute maximum rating of 20V. The battery charge voltage is configurable from 3.6V to 4.65V with 0.5% accuracy. The device features an I2C interface for control and configuration of parameters such as charge voltage, current, and termination thresholds.
This IC integrates a 300-mA buck regulator with a default 2.5V output, a load switch or 100-mA LDO output, and Power Path management. It also includes features like thermistor monitoring, IC thermal regulation, and input overvoltage protection. The operating temperature range is -40°C to 85°C.
The BQ25121AYFPR is supplied in a 25-DSBGA package, requiring surface mounting. Its small footprint and integration of multiple functions minimize the need for external components, making it ideal for space-constrained designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.86 | $1.86 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 3.4V to 5.5V, with an absolute maximum rating of 20V.
25-XFBGA/DSBGA surface-mount package (25-DSBGA supplier package).
-40°C to 85°C.
Li-Ion/Li-Polymer.
Maximum charge current is 300mA (0.3A).
The battery charge voltage can be set from 3.6V to 4.65V.
Over-current, over-voltage, and short-circuit protection.