BQ24081QDRCRQ1

The bq24081QDRCRQ1 is TI’s automotive‑qualified, single‑cell Li‑ion battery charger with integrated power‑path management. It charges a 1‑cell Li‑ion/polymer battery from USB or other 5V‑class inputs while simultaneously powering the system, so the device can run off the input without draining the battery. It implements a CC/CV charging profile with programmable charge current and end‑voltage, supports preconditioning for deeply discharged cells, and auto‑recharge. Safety features include thermal regulation, battery‑temperature monitoring, overvoltage/overcurrent protection, short‑circuit protection, and reverse‑current protection. Status outputs simplify integration for charge/ fault indication. The Q1 suffix denotes automotive qualification, suitable for vehicle/industrial environments; DRCRQ1 indicates the specific package/revision. Applications: compact, safe charge management with power path for portable or automotive/industrial devices.

Here are the key features of BQ24081QDRCRQ1 (typical for this TI charger with automotive-grade option):
- Complete single-cell Li-Ion/Li-Pol battery charger with integrated system power-path management
- Input from standard 5 V USB supply; supports portable power sources
- Automatic charging profile: precondition, constant-current, constant-voltage, and termination
- Programmable charging current (via external resistor) for flexible charging rate
- Battery regulation to 4.2 V with accurate voltage control
- Power-path operation: system can be powered from the input while the battery is charged
- Battery temperature monitoring and safe thermal regulation
- Safety protections: overcurrent/short-circuit, overvoltage, undervoltage, and reverse-current protection
- Automatic recharge when the battery voltage drops below a threshold
- Low standby/quiescent current; minimal external components required
- Automotive-grade option (-Q1) available, with AEC-Q100 qualification
- Small, Pb-free package suitable for portable/industrial applications
Note: exact electrical specs (current range, voltages, tolerances) vary by configuration; consult the datasheet for precise values.

- Pin count: 16 pins (QFN package).
- Function: BQ24081QDRCRQ1 is a single-cell Li‑Ion/Li‑Polymer battery charger with integrated high‑side power FET and PowerPath for system-load sharing. It accepts USB/adapter input, provides constant-current/constant-voltage charging, and manages charging termination and related safety features.

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits and other semiconductor products.

BQ24081QDRCRQ1 is a single‑cell Li‑ion battery charger with integrated PowerPath and system-load sharing. It is used in portable devices that must be charged from USB or AC adapters while the system stays powered. Common applications include smartphones, wearables, cameras, MP3 players, handheld medical devices, GPS trackers, and other USB/AC-powered battery-powered equipment; also in charging docks/cradles and handheld instrumentation.

Leadless QFN package: QFN-16 (3x3 mm), RoHS-compliant.