Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - battery management Battery indicator, Surge protection Li-Ion, Li-Po TSSOP 38 S

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

FEATURES

DESCRIPTION

• 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

38-PIN TSSOP (DBT) Tube

(1)

38-PIN TSSOP (DBT) Tape and Reel

(2)

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

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.

2IMPEDANCE TRACK is a trademark of Texas Instruments.

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.

Summary of content (23 pages)

PAGE 1
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 FEATURES 1 • 2 • • • • • • Next Generation Patented Impedance Track™ Technology accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries – Better than 1% Error Over Lifetime of the Battery – Instant Accuracy – No Learning Cycle Required Supports the Smart Battery Specification SBS V1.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 TERMINAL FUNCTIONS TERMINAL (1) I/O (1) DESCRIPTION NO. NAME 1 DSG O 2 PACK IA, P 3 VCC P Positive device supply input. Connect to the center connection of the CHG FET and DSG FET to ensure device supply either from battery stack or battery pack input 4 ZVCHG O P-channel pre-charge FET gate drive 5 GPOD OD 6 PMS I Pre-charge mode setting input. Connect to PACK to enable 0v pre-charge using charge FET connected at CHG pin.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com TERMINAL FUNCTIONS (continued) TERMINAL NO. NAME I/O (1) DESCRIPTION 37 BAT O Battery stack voltage sense input 38 CHG O High side N-channel charge FET gate drive Absolute Maximum Ratings Over Operating Free-Air Temperature (unless otherwise noted) V MAX V IN (1) DESCRIPTION PIN Supply voltage range VBAT, VCC Input voltage range PACK, PMS –0.3V to 34V VC(n)-VC(n+1); n = 1, 2, 3, 4 –0.3V to 8.5V VC1, VC2, VC3, VC4 –0.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) PARAMETER PIN V SUP Supply voltage VCC, VBAT MIN 4.5 V Minimum startup voltage VCC, BAT, PACK 5.5 NOM MAX 25 UNIT V V STARTUP VIN Input Voltage Range VC(n)–VC(n+1); n = 1,2,3,4 0 5 V VC1, VC2, VC3, VC4 0 VSUP V VC5 0 0.5 V ASRN, ASRP –0.5 0.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted), TA = –40°C to 85°C, VREG25 = 2.41 V to 2.59 V, VBAT = 14V, CREG25 = 1µF, CREG33 = 2.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted), TA = –40°C to 85°C, VREG25 = 2.41 V to 2.59 V, VBAT = 14V, CREG25 = 1µF, CREG33 = 2.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted), TA = –40°C to 85°C, VREG25 = 2.41 V to 2.59 V, VBAT = 14V, CREG25 = 1µF, CREG33 = 2.2µF; typical values at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS VOH Output voltage high (1) SAFE, IL = –0.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 Electrical Characteristics (continued) over operating free-air temperature range (unless otherwise noted), TA = –40°C to 85°C, VREG25 = 2.41 V to 2.59 V, VBAT = 14V, CREG25 = 1µF, CREG33 = 2.2µF; typical values at TA = 25°C (unless otherwise noted) PARAMETER f(EIO) Frequency error t(SXO) Start-up time (14) TEST CONDITIONS (12) (13) TA = 20°C to 70°C MIN TYP MAX –3% 0.25% 3% –2% 0.25% 2% 2.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com SMBus Timing Characteristics (continued) TA = –40°C to 85°C Typical Values at TA = 25°C and V(REG25) = 2.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 FEATURE SET Primary (1st Level) Safety Features The bq20z75-V180 supports a wide range of battery and system protection features that can easily be configured.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com Power Modes The bq20z75-V180 supports 3 different power modes to reduce power consumption: • • • In Normal Mode, the bq20z75-V180 performs measurements, calculations, protection decisions and data updates in 1 second intervals. Between these intervals, the bq20z75-V180 is in a reduced power stage. In Sleep Mode, the bq20z75-V180 performs measurements, calculations, protection decisions and data update in adjustable time intervals.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 Temperature The bq20z75-V180 has an internal temperature sensor and 2 external temperature sensor inputs TS1 and TS2 used in conjunction with two identical NTC thermistors (default are Semitec 103AT) to sense the battery environmental temperature. The bq20z75-V180 can be configured to use internal or external temperature sensors. COMMUNICATIONS The bq20z75-V180 uses SMBus v1.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.com SBS and Dataflash Values Table 2.
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bq20z75-V180 www.ti.com SLUSA22 – DECEMBER 2009 Table 3.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 www.ti.
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bq20z75-V180 SLUSA22 – DECEMBER 2009 321 8 7 65 Q4 TPC8017-H www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device BQ20Z75DBTR-V180 Package Package Pins Type Drawing TSSOP DBT 38 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 6.9 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 10.2 1.8 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) BQ20Z75DBTR-V180 TSSOP DBT 38 2000 367.0 367.0 38.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.