BQ24079TRGTR

BQ24079TRGTR is TI’s single‑cell Li‑ion/Li‑polymer battery charger with power‑path management. It runs from a 4.75–5.5 V input (USB or adapter) and charges one cell while powering the system through a SYS output. Charge current is programmable via an external resistor (up to about 1 A), with CC/CV charging, preconditioning for deeply discharged cells, and automatic recharge. It provides safety features: thermal regulation, battery‑temperature monitoring, input/output overcurrent protection, battery over‑voltage/short‑circuit protection, and controlled termination. The power‑path architecture lets the system run from input while charging, reducing battery droop. It suits portable devices and wearables requiring USB charging with protection, such as smartphones, MP3 players, or handheld gadgets. The TRG suffix denotes a TI packaging option (tape‑and‑reel/green); check the datasheet for exact pinout and electrical specs.

Here are the key features of the BQ24079TRGTR:
- Single-cell Li-Ion battery charger with integrated system power-path management
- Input: 5V USB supply compatibility
- Programmable charge current up to about 1.5 A
- Constant-current / constant-voltage charging with a 4.2 V regulation
- Dynamic power-path architecture to power system loads while charging
- Battery temperature monitoring via NTC input and thermal regulation
- Automatic recharge when battery voltage drops below threshold
- Safety protections: overvoltage, overcurrent/short-circuit, thermal, and reverse-current protection
- Efficient, compact package suitable for mobile/compact devices
Note: exact programmable ranges and pin details are per the datasheet; confirm resistor configurations for your design.

8 pins. Function: BQ24079TRGTR is a single-cell Li-ion battery charge-management IC with integrated power-path. It accepts USB/DC input, provides CC/CV charging to a single-cell Li‑ion battery, supports system-load sharing (power-path), and includes safety features and status outputs.

- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits; a leading global supplier of analog semiconductors.

BQ24079TRGTR is used for single‑cell Li‑ion/Li‑Po battery charging with integrated power-path. Ideal for portable devices powered from USB or an AC adapter, requiring seamless system power management. Common application areas include:
- Smartphones, cameras, GPS devices, MP3/portable media players
- Wearables and Bluetooth headsets
- Toys and handheld instruments
- USB power banks, docking stations, and portable charging accessories

BQ24079TRGTR comes in an 8-pin VSSOP (Very Small Outline Package) package.