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bq27545-G1

Texas Instruments
Part Number bq27545-G1
Manufacturer Texas Instruments
Description Single Cell Li-Ion Battery Fuel Gauge
Published May 25, 2023
Detailed Description Product Folder Order Now Technical Documents Tools & Software Support & Community bq27545-G1 SLUSAT0E – OCTOBER 201...
Datasheet PDF File bq27545-G1 PDF File

bq27545-G1
bq27545-G1

Overview
Product Folder Order Now Technical Documents Tools & Software Support & Community bq27545-G1 SLUSAT0E – OCTOBER 2012 – REVISED MAY 2018 bq27545-G1 Single-Cell Li-Ion Battery Fuel Gauge For Battery Pack Integration 1 Features •1 Battery Fuel Gauge for 1-Series (1sXp) Li-Ion Applications up to 14500-mAh Capacity • Microcontroller Peripheral Provides: – 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 and Rate Inefficiencies – Low-Value Sense Resistor (5 mΩ to 20 mΩ) • Advanced Fuel Gauging Features – Internal Short Detection – Tab Disconnection Detection • HDQ and I2C™ Interface Formats for Communication with Host System • Small 15-Ball Nano-Free™ (DSBGA) Packaging 2 Applications • Smartphones • Tablets • Digital Still and Video Cameras • Handheld Terminals • MP3 or Multimedia Players 3 Description The bq27545-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 bq27545-G1 resides within the battery pack or on the system’s main-board with an embedded battery (non removable).
The bq27545-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 (minimum), battery voltage (mV), and temperature (°C).
It also provides detections for internal short or tab disconnection events.
The bq27545-G1 also features integrated support for secure battery pack authentication, using the SHA1/HMAC authentication algorithm.
The device comes in a 15-ba...


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