bq20z75-V180

www.ti.com

SLUSA22 – DECEMBER 2009

SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION-ENABLED IC

WITH IMPEDANCE TRACK™

Check for Samples: bq20z75-V180

1

FEATURES

DESCRIPTION

2

•

Next Generation Patented Impedance Track™

Technology accurately Measures Available

The bq20z75-V180 SBS-compliant gas gauge and

Charge in Li-Ion and Li-Polymer Batteries

protection IC is a single IC solution designed for

battery-pack

or

in-system

installation.

The

–

Better than 1% Error Over Lifetime of the

bq20z75-V180 measures and maintains an accurate

Battery

record of available charge in Li-ion or Li-polymer

–

Instant Accuracy – No Learning Cycle

batteries

using

its

integrated

high-performance

Required

analog peripherals, monitors capacity change, battery

•

Supports the Smart Battery Specification

impedance, open-circuit voltage, and other critical

parameters of the battery pack as well and reports

SBS V1.1

the information to the system host controller over a

•

Flexible Configuration for 2 to 4 Series Li-Ion

serial-communication

bus.

Together

with

the

and Li-Polymer Cells

integrated analog front-end (AFE) short-circuit and

•

Powerful 8-Bit RISC CPU With Ultra-Low

overload protection the bq20z75-V180 maximizes

Power Modes

functionality, safety and minimize external component

count, cost and size in smart battery circuits.

•

Full Array of Programmable Protection

Features

The implemented Impedance Track™ gas gauging

technology

continuously

analyzes

the

battery

–

Voltage, Current and Temperature

impedance,

resulting

in

superior

gas-gauging

•

Supports SHA-1 Authentication

accuracy. This enables remaining capacity to be

•

small 38-Pin TSSOP (DBT) Package

calculated with discharge rate, temperature, and cell

aging all accounted for during each stage of every

APPLICATIONS

cycle with high accuracy.

•

Notebook PCs

•

Medical and Test Equipment

•

Portable Instrumentation

Table 1. AVAILABLE OPTIONS

PACKAGE

bq20z75DBT

bq20z75DBTR

–40°C to 85°C

bq20z75DBT-V160

bq20z75DBTR-v160

bq20z75DBT-v180

bq20z75DBTR-v180

(1)

A single tube quantity is 50 units.

(2)

A single reel quantity is 2000 units

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.

2

IMPEDANCE TRACK is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.