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Product details

Parameters

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Battery capacity (Min) (mAh) 300 Battery capacity (Max) (mAh) 8000 Implementation System External capacity indication None Features Battery Management Unit, SHA-1 Authentication Operating temperature range (C) -40 to 85 open-in-new Find other Battery fuel gauges

Package | Pins | Size

DSBGA (YZF) 15 5 mm² 2.65 x 1.996 open-in-new Find other Battery fuel gauges

Features

  • Battery Fuel Gauge and Charger Controller for 1-
    Cell Li-Ion Applications up to 14,500-mAh
    Capacity
  • Resides on System Main Board
  • Battery Fuel Gauge Based on Patented
    Impedance Track™ Technology
    • Models the Battery Discharge Curve for
      Accurate Remaining Capacity Predictions
    • Automatically Adjusts for Battery Aging,
      Battery Self-Discharge, and Temperature and
      Rate Inefficiencies
    • Low-value Sense Resistor (5 to 20 mΩ)
  • Battery Charger Controller With Customizable
    Charge Profiles
    • Configurable Charge Voltage and Current
      Based on Temperature
    • Optional State-of-Health (SoH) and Multi-Level
      Based Charge Profiles
  • Host-free Autonomous Battery Management
    System
    • Reduced Software Overhead Allows for Easy
      Portability Across Platforms and Shorter OEM
      Design Cycles
    • Higher Safety and Security
  • Runtime Improvements
    • Longer Battery Runtime Leveraging
      Impedance Track™ Technology
    • Tighter Accuracy Controls for Charger
      Termination
    • Improved Recharge Thresholds
  • Intelligent Charging – Customized and Adaptive
    Charging Profiles
    • Charger Control Based on SoH
    • Temperature Level Charging (TLC)
  • Stand-alone Battery Charger Controller for
    bq2425x Single-Cell Switch-mode Battery Charger
  • 400-kHz I2C Interface for Connection to System
    Microcontroller Port
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Description

The bq27532-G1 system-side, Li-Ion battery management unit is a microcontroller peripheral that provides Impedance Track™ fuel gauging and charging control for single-cell Li-Ion battery packs. The fuel gauge requires little system microcontroller firmware development. Together with bq2425x single-cell switch-mode charger, the fuel gauge manages an embedded battery (non-removable) or a removable battery pack.

The fuel gauge uses the patented Impedance Track algorithm for fuel gauging, and provides information, such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (minimum), battery voltage (mV), temperature (°C), and SoH (%).

Battery fuel gauging with the device requires only PACK+ (P+), PACK– (P–), and thermistor (T) connections to a removable battery pack or embedded battery circuit. The 15-pin NanoFree™ (CSP) package has dimensions of 2.61 mm × 1.96 mm with 0.5-mm lead pitch. It is ideal for space-constrained applications.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet bq27532-G1 Battery Management Unit Impedance Track Fuel Gauge for bq2425x Charger datasheet (Rev. B) Jan. 21, 2016
* User guides bq27532-G1 Technical Reference Manual Oct. 03, 2014
Application notes Benefits of Battery Gauges and Protectors in Medical Applications Jul. 02, 2018
More literature bq27532EVM with bq27532 Battery Management Unit and bq24250 Battery Charger Jul. 21, 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
149
Description

The bq27532 evaluation module (EVM) has a bq27532-G1 gas gauge that directly communicates with bq24250 single-cell, Li-Ion battery charger via !2C.  This complete battery charging solution does not require a micro-controller or processor to facilitate communication between the charger and (...)

Features
  • LED indication for status signals
  • Test points for key signals for testing purposes
  • I2C access between gas gauge and charger
  • USB input operating range of 4.2V – 6V
INTERFACE ADAPTERS Download
document-generic User guide
199
Description

The EV2400 EVM interface board enables an IBM-compatible or other type PC (with the required driver for its particular platform) to communicate with the Texas Instruments SMBus or I2C interface gas gauges via a Universal Serial Bus (USB) port. In addition to this board, PC software is required to (...)

Features
  • Fully powered from the USB port
  • Optional 5-V port for powering high power voltage drivers (future upgrade)
  • Complete interface between the USB and SMBus, I2C (8/16) interfaces
  • Expansion port for future upgrades

Software development

APPLICATION SOFTWARE & FRAMEWORKS Download
Battery Management Studio (bqStudio) Software
BQSTUDIO Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)
Features
  • Real-time Gauge Dashboard for monitoring basic registers
  • Full register access and logging
  • Full data memory access and logging
  • Product configuration and monitoring tools
  • Import and export of product configurations
  • Calibration and test automation
  • Export of FS files for the target production environment 
APPLICATION SOFTWARE & FRAMEWORKS Download
Gauging Parameter Calculator: Match chemistry for Impedance Track gauges
GPCCHEM GPC Chemistry ID matching for Impedance Track (IT) algorithm gas gauges (Find closest chemistry match) must be done before Optimizing room temperature or low temperature performance.

Gauging Parameter Calculator Chemistry ID matching for Impedance track gas gauges (GPCCHEM) is a math calculation and (...)

APPLICATION SOFTWARE & FRAMEWORKS Download
Gauging Parameter Calculator: Optimize room temperature performance for Impedance Track gauges
GPCRA0 Gauging Parameter Calculator – Optimize room temperature performance for Impedance track gas gauges (GPCRA0) / Golden GG Maker is a math calculation tool that helps the battery designer to refine the Impedance Track battery gauge parameters for a given battery profile. It provides optimized (...)
APPLICATION SOFTWARE & FRAMEWORKS Download
Gauging Parameter Calculator: Optimize room and low temp performance Impedance Track gauges
GPCRB Gauging Parameter Calculator – Optimize room and low temperature performance for Impedance track gas gauges (GPCRB) is a math calculation tool that helps the battery designer to refine the Impedance Track battery gauge parameters for a given battery profile. Depending on the input log file, it (...)
FIRMWARE Download
SLUC606.ZIP (4083 KB)
SUPPORT SOFTWARE Download
SLUC564FW.ZIP (2777 KB)

CAD/CAE symbols

Package Pins Download
DSBGA (YZF) 15 View options

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