This document describes the Texas Instruments bq27541-V200 single-cell Li-Ion battery fuel gauge. The product is suitable for applications such as smartphones, PDAs, digital cameras, and microcontroller peripherals. It provides accurate battery fuel gauging and internal temperature sensing capabilities.
The bq27541‑V200 is a single‑cell Li‑ion battery fuel gauge that provides accurate state‑of‑charge, time‑to‑empty, and temperature reporting. It uses Texas Instruments' patented Impedance Track™ algorithm and includes SHA‑1/HMAC authentication and 96 bytes of non‑volatile flash for user data.
The device is offered in a 12‑pin, 2.5 mm × 4 mm SON package and supports both HDQ and I²C communication interfaces. It operates over a wide temperature range (‑40 °C to 100 °C) and includes multiple low‑power modes to minimize consumption in battery‑powered applications.
| Package | 12‑pin, 2.5 mm × 4 mm SON |
|---|---|
| Operating Temperature Range | ‑40 °C to 100 °C |
| REGIN Supply Voltage Range | 0.3 V to 24 V |
| Data Flash Retention | 10 years |
| User‑Programmable Flash Size | 96 bytes |
The REGIN pin can be supplied with a voltage between 0.3 V and 24 V.
It provides 96 bytes of user‑programmable flash memory, divided into three 32‑byte blocks.
The device supports HDQ and I²C (IC™) serial communication interfaces.
The bq27541‑V200 operates from –40 °C to 100 °C.