BQ3055 Datasheet, PDF (1/23 Pages) Texas Instruments – 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager

bq3055
www.ti.com
SLUSA91A – OCTOBER 2010 – REVISED JANUARY 2012
2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager
Check for Samples: bq3055
FEATURES
1
• Fully Integrated 2-Series, 3-Series, and
4-Series Li-Ion or Li-Polymer Cell Battery Pack
Manager and Protection
• Advanced Compensated End-of-Discharge
Voltage (CEDV) Gauging
• High Side N-CH Protection FET Drive
• Integrated Cell Balancing
• Low Power Modes
– Low Power: < 180 µA
– Sleep < 76 µA
• Full Array of Programmable Protection
Features
– Voltage
– Current
– Temperature
• Sophisticated Charge Algorithms
– JEITA
– Enhanced Charging
– Adaptive Charging
• Supports Two-Wire SMBus v1.1 Interface
• SHA-1 Authentication
• Compact Package: 30-Lead TSSOP
APPLICATIONS
• Notebook/Netbook PCs
• Medical and Test Equipment
• Portable Instrumentation
DESCRIPTION
The bq3055 device is a fully integrated, single-chip,
pack-based solution that provides a rich array of
features for gas gauging, protection, and
authentication for 2-series, 3-series, and 4-series cell
Li-Ion and Li-Polymer battery packs.
Using its integrated high-performance analog
peripherals, the bq3055 device measures and
maintains an accurate record of available capacity,
voltage, current, temperature, and other critical
parameters in Li-Ion or Li-Polymer batteries, and
reports this information to the system host controller
over an SMBus v1.1 compatible interface.
The bq3055 provides software-based 1st-level and
2nd-level safety protection for overvoltage,
undervoltage, overtemperature, and overcharge
conditions, as well as hardware-based protection for
overcurrent in discharge and short circuit in charge
and discharge conditions.
SHA-1 authentication with secure memory for
authentication keys enables identification of genuine
battery packs beyond any doubt.
The compact 30-lead TSSOP package minimizes
solution cost and size for smart batteries while
providing maximum functionality and safety for
battery gauging applications.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2012, Texas Instruments Incorporated