BQ20Z70-V110 Status: ACTIVE

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

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Datasheet

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Trach Tech for bq29330 (bq20z70-v110.pdf, 336 KB)
17 Oct 2006 Download

	BQ20Z70-V110
Charge vs Discharge Relationship	C=D
Battery Capacity(Min)(mAh)	800
Battery Capacity(Max)(mAh)	15000
Communication Interface	SMBus
Pin/Package	20TSSOP
Approx. Price (US$)	3.15 \| 1ku
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

BQ27200: Single-Cell Li-Ion and Li-Pol Battery Gas Gauge IC with I2C Interface
BQ20Z90-V110: SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Track Tech
BQ27500: System-Side Impedance Track(TM) Fuel Gauge
TPS62200: Adjustable, 300-mA, 95% Efficient Step-Down Converter in SOT-23
BQ24740: Multi-Cell Synchronous Switch-mode Battery Charger
TPS62207: 1.2-V Output, 300-mA, 95% Efficient Step-Down Converter in SOT-23

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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	ACTIVE	-40 to 85	3.15 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Purchase Samples
BQ20Z70PW-V110G4	ACTIVE	-40 to 85	3.15 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Purchase Samples
BQ20Z70PWR-V110	ACTIVE	-40 to 85	3.15 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R
BQ20Z70PWR-V110G4	ACTIVE	-40 to 85	3.15 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R

* 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

	TI Inventory Status			Reported Distributor Inventory
BQ20Z70PW-V110	As of 9:15 AM GMT, 12 Oct 2008			As of 9:15 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	980*	1 \| 9 Dec	6 Weeks	Americas	Arrow	>1k
		>10k \| 26 Jan			Newark	139
					Rochester Electronics	>1k
BQ20Z70PW-V110G4	As of 9:15 AM GMT, 12 Oct 2008			As of 9:15 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	980*	1 \| 9 Dec	6 Weeks	None Reported View Distributors
	980*	>10k \| 26 Jan	6 Weeks
BQ20Z70PWR-V110	As of 9:15 AM GMT, 12 Oct 2008			As of 9:15 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	1 \| 9 Dec	6 Weeks	Americas	DigiKey	>1k
		>10k \| 26 Jan		Americas	Mouser Electronics	695
				Asia	WPI	>1k
BQ20Z70PWR-V110G4	As of 9:15 AM GMT, 12 Oct 2008			As of 9:15 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	1 \| 9 Dec	6 Weeks	None Reported View Distributors
	0*	>10k \| 26 Jan	6 Weeks
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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

Datasheets

SBS 1.1 Compliant Gas Gauge Enabled w/Impedance Trach Tech for bq29330 (bq20z70-v110.pdf, 336 KB)
17 Oct 2006 Download

Application Notes

Design 4: Support of Multiple Li-Ion Chemistries w/Impedance Track(TM) Gas Gauge (Rev. I) (slua372i.htm, 8 KB)
14 May 2008 Abstract
How to Access the FAQ KnowledgeBase for Impedance Track Fuel (slua466.htm, 8 KB)
09 May 2008 Abstract
2-Series-Cell Considerations for Advanced Fuel Gauges (slua465.htm, 8 KB)
09 May 2008 Abstract
Cell-type Specific Settings for Cell Imbalance Permanent Failure Thresholds (slua433.htm, 8 KB)
28 Sep 2007 Abstract
Quick-Start Guide for bq20zxx Family Gas Gauges (Rev. A) (slua421a.htm, 8 KB)
04 Sep 2007 Abstract
Fast Cell Balancing Using External MOSFET (slua420.htm, 8 KB)
03 May 2007 Abstract
bq20z70 and bq20z90 Application Book (slua404.htm, 8 KB)
13 Dec 2006 Abstract
Evaluation 7: Preparing Optimized Data Flash Constants (Rev. B) (slua334b.htm, 8 KB)
04 Dec 2006 Abstract
Cell Balancing Using the bq20zxx (Rev. B) (slua340b.htm, 8 KB)
09 Nov 2006 Abstract
Updating Firmware With the bq20zxx and EVM (Rev. B) (slua336b.htm, 8 KB)
07 Nov 2006 Abstract
Pack Assembly and the bq20zxx (Rev. B) (slua335b.htm, 8 KB)
07 Nov 2006 Abstract
bq20z80 EVM Data Flash Settings for Num of Serial Cells/Pack Cap (Rev. B) (slva208b.htm, 8 KB)
06 Nov 2006 Abstract
bq20z70 (v1.10) Change List (slua402.htm, 8 KB)
10 Oct 2006 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
bq20z70-V150 Multiple Li-Ion Chemistries Software (Rev. D)(sluc061d.zip, 72 KB ) 15 Nov 2007 zip

Alternative Products - Are similar to BQ20Z70-V110
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Part #	Name	Comments
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BQ27000	Single-Cell Li-Ion and Li-Pol Battery Gas Gauge IC	TI customers also evaluated this product.

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