AD7280WBSTZ-RL

AD7280WBSTZ-RL is Analog Devices’ multi‑cell Li‑ion/Li‑polymer battery gauge (fuel gauge) IC. It measures cell voltages, pack current via a sense path, and temperature, performs coulomb counting, and provides state-of-charge (SOC) or related battery-status information to a host MCU through a serial interface. The device is intended for monitoring multi‑cell packs and enabling accurate SOC estimation and pack protection with minimal external components. The -RL suffix indicates reel packaging, while WBSTZ denotes the device variant/package. Typical applications include handheld devices, cordless tools, and compact energy-storage packs that require reliable battery management. For exact capabilities (number of cells supported, voltage/current ranges, interface type, calibration options), refer to the AD7280 datasheet and product page.

AD7280WBSTZ-RL features (concise):
- 3 to 16Li‑ion cell multicell battery monitor with coulomb counting.
- Measures all cell voltages, pack current via external sense resistor, and temperature.
- SPI-compatible serial interface for host MCU with register access.
- On-chip front-end suitable for high stack voltages with wide common‑mode range.
- Programmable coulomb-counter capacity and SOC-related data support.
- Diagnostic flags for over/under-voltage, overcurrent/short, and thermal faults.
- Data registers and status indicators for monitoring and fault reporting.
- Low‑power modes and flexible timing for power‑sensitive applications.
- RoHS-compliant, lead-free package in tape-and-reel (WBSTZ-RL).
Note: This is a concise feature summary. For exact electrical specs (voltage range, accuracy, current-sense range, timing, and pins), please consult the AD7280W datasheet.

- Pin count: 28 pins (28-pin package).
- Function: Multi-cell Li‑ion battery monitor/gas gauge with coulomb counting. It measures cell voltages, pack current, and temperature to estimate state of charge, and communicates with a host MCU via a SPI‑/I2C‑style serial interface.

Manufacturer: Analog Devices, Inc. (ADI).
About the company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits (including data converters, amplifiers, sensors, and power-management ICs). Headquartered in Norwood, Massachusetts.

AD7280WBSTZ-RL is an 8‑cell Li‑ion battery monitor/fuel gauge. Typical applications:
- 2–8S Li‑ion/Li‑poly packs in battery management systems (BMS)
- Coulomb counting, state‑of‑charge (SOC) estimation, voltage/temperature monitoring
- Portable electronics, cordless tools, medical devices
- Automotive, e‑bikes, other EV battery packs
- Renewable energy storage (solar, UPS, telecom power)
- Industrial equipment and prototyping requiring reliable battery gauging and monitoring

The AD7280WBSTZ-RL comes in a 28‑lead Leadframe Chip Scale Package (LFCSP) with an exposed pad, supplied in Tape & Reel (RL) packaging.