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bq27541-G1

Texas Instruments
Part Number bq27541-G1
Manufacturer Texas Instruments
Description Single Cell Li-Ion Battery Fuel Gauge
Published May 25, 2023
Detailed Description bq27541-G1 www.ti.com SLUSAL6B – NOVEMBER 2011 – REVISED JUNE 2012 Single Cell Li-Ion Battery Fuel Gauge for Battery ...
Datasheet PDF File bq27541-G1 PDF File

bq27541-G1
bq27541-G1

Overview
bq27541-G1 www.
ti.
com SLUSAL6B – NOVEMBER 2011 – REVISED JUNE 2012 Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration : bq27541-G1 FEATURES 1 •23 Battery Fuel Gauge for 1-Series (1sXp) Li-Ion Applications up to 32Ahr capacity • Microcontroller Peripheral Provides: – Accurate Battery Fuel Gauging supports up to 32Ahr – Internal or External Temperature Sensor for Battery Temperature Reporting – SHA-1/HMAC Authentication – Lifetime Data Logging – 64 Bytes of Non-Volatile Scratch Pad FLASH • Battery Fuel Gauging Based on Patented Impedance Track™ Technology – Models Battery Discharge Curve for Accurate Time-To-Empty Predictions – Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies – Low-Value Sense Resistor (5mΩ to 20mΩ) • Advanced Fuel Gauging Features – Internal Short Detection – Tab Disconnection Detection • HDQ and I2C™ Interface Formats for Communication With Host System • Small 12-pin 2.
5 mm × 4 mm SON Package APPLICATIONS • Smartphones • Tablets • Digital Still and Video Cameras • Handheld Terminals • MP3 or Multimedia Players DESCRIPTION The Texas Instruments bq27541-G1 Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs.
The device requires little system microcontroller firmware development for accurate battery fuel gauging.
The bq27541-G1 resides within the battery pack or on the system’s main-board with an embedded battery (nonremovable).
The bq27541-G1 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min.
), battery voltage (mV), and temperature (°C).
It also provides detections for internal short or tab disconnection events.
The bq27541-G1 also features integrated support for secure battery pack authentication, using the SHA1/HMAC authentication algorithm.
TYPICAL APPLICATION PACK+ Battery Pack SHD...


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