BQ20Z70-V110 Status: NRND

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Track Tech for bq29330

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NRND: This product is not recommended for new designs. However, the device, tool, or software continues to be in production to support existing customers. TI does not recommend using this part in a new design. TI encourages designers to consider alternative products for new designs.

Replaced By:

BQ20Z70-V160 The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.

Datasheet

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Trach Tech for bq29330 (PDF 0 KB)
17 Oct 2006

Product Information

Features

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 V1.1
Powerful 8-Bit RISC CPU With Ultra-Low Power Modes
Works With the TI bq29330 Analog Front-End (AFE) Protection IC to Provide Complete Pack Electronics Solution
Full Array of Programmable Protection Features
- Voltage, Current and Temperature
Fully Integrated High Accurate Clock
Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
Integrated Field Programmable FLASH Memory Eliminates the Need for External Configuration Memory
Smart Battery Charger Control Feature
Two 16-Bit Delta-Sigma Converter
- Accurate Voltage and Temperature Measurements
- Integrating Coloumb Counter for Charge FlowBetter Than 0.65 nVh of ResolutionSelf-Calibrating
Supports SHA-1 Authentication
20-Pin TSSOP (PW)
APPLICATIONS
- Notebook PCs
- Medical and Test Equipment
- Portable Instrumentation

IMPEDANCE TRACK is a trademark of Texas Instruments.

Description

The bq20z70-V110 SBS-compliant gas gauge IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z70-V110 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z70-V110 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximize functionality and safety, and minimize component count and cost in smart battery circuits.

The Impedance Track technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell aging all accounted for during each stage of every cycle.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
BQ20Z70PW-V110	NRND	-40 to 85	4.55 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Not Available
BQ20Z70PW-V110G4	NRND	-40 to 85	4.55 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Not Available
BQ20Z70PWR-V110	NRND	-40 to 85	4.10 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Not Available
BQ20Z70PWR-V110G4	NRND	-40 to 85	4.10 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Not Available

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 12:08 PM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksBQ20Z70PW-V110
Americas	Newark	139
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	140
Europe	Farnell	140
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksBQ20Z70PW-V110G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksBQ20Z70PWR-V110
Asia	WPI	456
Europe	Compel	2
Worldwide	DigiKey	661
Worldwide	Mouser Electronics	521
TI Lead Time*: 20 WeeksBQ20Z70PWR-V110G4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
BQ20Z70PW-V110	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ20Z70PW-V110G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ20Z70PWR-V110	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ20Z70PWR-V110G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for BQ20Z70-V110

Datasheet

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Trach Tech for bq29330 (PDF, 0 KB)
17 Oct 2006

Application Notes

How to Access the FAQ KnowledgeBase for Impedance Track Fuel (HTM, 8 KB) 730 views
09 May 2008 Read Abstract
2-Series-Cell Considerations for Advanced Fuel Gauges (HTM, 8 KB) 769 views
09 May 2008 Read Abstract
Cell-type Specific Settings for Cell Imbalance Permanent Failure Thresholds (HTM, 8 KB) 654 views
28 Sep 2007 Read Abstract
bq20z70 and bq20z90 Application Book (HTM, 8 KB) 3687 views
13 Dec 2006 Read Abstract
bq20z70 (v1.10) Change List (HTM, 8 KB) 296 views
10 Oct 2006 Read Abstract
Updating Firmware With the bq20zxx and EVM (Rev. B) (HTM, 8 KB) 1846 views
07 Nov 2006 Read Abstract
Pack Assembly and the bq20zxx (Rev. B) (HTM, 8 KB) 1294 views
07 Nov 2006 Read Abstract
Evaluation 7: Preparing Optimized Data Flash Constants (Rev. B) (HTM, 8 KB) 1391 views
04 Dec 2006 Read Abstract
Cell Balancing Using the bq20zxx (Rev. B) (HTM, 8 KB) 1763 views
09 Nov 2006 Read Abstract
Quick-Start Guide for bq20zxx Family Gas Gauges (Rev. A) (HTM, 8 KB) 3223 views
04 Sep 2007 Read Abstract
bq20z80 EVM Data Flash Settings for Num of Serial Cells/Pack Cap (Rev. B) (HTM, 8 KB) 1499 views
06 Nov 2006 Read Abstract
Design 4: Support of Multiple Li-Ion Chemistries w/Impedance Track(TM) Gas Gauge (Rev. R) (HTM, 8 KB) 6570 views
15 Oct 2009 Read Abstract
Operating Fuel Gauge bq20z7x/8x/9x and SMBus-Like bq24745/47/65 Chargers (HTM, 9 KB) 218 views
06 Oct 2009 Read Abstract
Fast Cell Balancing Using External MOSFET (Rev. A) (HTM, 8 KB) 1936 views
26 Jan 2009 Read Abstract

View Application Notes for Battery Fuel Gauges

Tools & Software

Name	Part #	Company	Tool / Software Type
BQ20Z70EVM Evaluation Module for 2nd Generation Impedance Track(TM)	BQ20Z70EVM-001	Texas Instruments	Development Boards/EVMs
BQMTESTER Multi Channel Test and Program Board	BQMTESTER	Texas Instruments	Development Boards/EVMs
Single Channel Tester	BQTESTER	Texas Instruments	Development Boards/EVMs
Mathcad Chemistry Selection Tool (Rev. G)(ZIP 4778 KB ) 1027 views 15 Oct 2009
Chemistry Updater Setup 1.56 (Rev. O)(ZIP 5870 KB ) 3768 views 15 Oct 2009
bq20z70-V150 Multiple Li-Ion Chemistries Software (Rev. D)(ZIP 72 KB ) 535 views 15 Nov 2007

Part #	Name	Product Family	Comments
BQ20Z40	SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330	BATTERY MANAGEMENT - BATTERY FUEL GAUGES	bq20z40 is pin compatible to bq20z70 with additional features of JEITA, IT 3rd gen, Lifetime data, 2 independent thermistors & cell based taper termination

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BQ20Z70-V110 Status: NRND

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Track Tech for bq29330

Replaced By:

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Datasheet

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

Tools & Software

Support and Community

Customer Tags

Other Support

BQ20Z70-V110 Status: NRND

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Track Tech for bq29330

Replaced By:

Most Popular Links

Datasheet

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

Tools & Software

Related Products

Support and Community

Customer Tags

Other Support