Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Function | Li-ion charger front-end protection IC |
| Maximum input voltage | 30 V |
| Input current capability | Up to 1.5 A |
| Input OVP threshold | 5.85 V |
| Battery OVP threshold | 4.35 V |
| OVP response | <1 µs |
| Package | WSON-8, 2×2 mm |
| Product status | Active |
Product Overview
The BQ24315DSGR is TI’s active WSON-8 tape-and-reel orderable for a single-cell Li-ion charging-path protection IC. It protects the system from adapter/input overvoltage, programmable overcurrent and battery overvoltage faults.
The device is a front-end protector rather than a complete battery charger. It is typically placed between the external power input and the charger/power-management stage.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Maximum input voltage | 30 V |
| Input current capability | Up to 1.5 A |
| Input OVP threshold | 5.85 V |
| Battery OVP threshold | 4.35 V |
| OVP response | <1 µs |
| Typical operating current | 400 µA |
| LDO-mode regulation | 5.5 V |
| Thermal shutdown | ~140°C |
| Temperature range | -40°C to +125°C |
| Package | WSON-8, 2×2 mm |
Design Considerations
Use TI’s exposed-pad land pattern and thermal grounding for the 2×2 mm WSON. Fault current and transient energy can be concentrated in a very small package.
Program the input-current threshold to match both adapter and downstream charger requirements; do not use the 1.5 A capability as a universal current setting.
Related Engineering Resources
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