BQ2084-V143 Status: ACTIVE

SBS v1.1 Compliant Gas Gauge for use with the BQ29312A

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Datasheet

SBS v1.1-Compliant Gas Gauge For Use With The bq29312A (PDF 895 KB)
11 Sep 2006

	BQ2084-V143
Battery Capacity(Min)(mAh)	500
Battery Capacity(Max)(mAh)	15000
Communication Interface	SMBus
Capacity Indication	LED
# Series Cells	2,3,4
Pin/Package	36QFN, 38TSSOP
Approx. Price (US$)	4.00 \| 1ku
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

BQ78PL114: PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing
BQ2084-V150: SBS v1.1 Compliant Gas Gauge with LED Delay
BQ3060: SBS 1.1-Compliant Gas Gauge and Protector
BQ77PL900: 5-10 cell Li-ion Battery protection & AFE
BQ29312A: Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE
UCC28051: PFC Controller for low to medium power applications requiring compliance with IEC 1000-3-2

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Product Information

Features

Provides Accurate Measurement of Available Charge in Li-Ion and Li-Polymer Batteries
Supports the Smart Battery Specification (SBS) V1.1
Integrated Time Base Removes Need for External Crystal with Optional Crystal input
Works With the TI bq29312 Analog Front-End (AFE) Protection IC to Provide Complete Pack Electronics for 7.2-V, 10.8-V or 14.4-V Battery Packs With Few External Components
Based on a Powerful Low-Power RISC CPU Core With High-Performance Peripherals
Integrated Flash Memory Eliminates the Need for External Configuration EEPROM
Uses 16-Bit Delta Sigma Converter for Accurate Voltage and Temperature Measurements
Measures Charge Flow Using a High Resolution 16-Bit Integrating Converter
- Better Than 0.65-nVh of Resolution
- Self-Calibrating
- Offset Error Less Than 1-µV
Programmable Cell Modeling for Maximum Battery Fuel Gauge Accuracy
Drives 3-, 4-, or 5-Segment LED Display for Remaining Capacity Indication
Available in a 38-Pin TSSOP (DBT) Package
APPLICATIONS
- Notebook PCs
- Medical and Test Equipment
- Portable Instrumentation

Description

The bq2084-V143 SBS-compliant gas gauge IC for battery pack or in-system installation maintains an accurate record of available charge in Li-ion or Li-polymer batteries. The bq2084-V143 monitors capacity 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 bq29312 AFE protection IC to maximize functionality and safety and minimize component count and cost in smart battery circuits. Using information from the bq2084-V143, the host controller can manage remaining battery power to extend the system run time as much as possible.

The bq2084-V143 uses an integrating converter with continuous sampling for the measurement of battery charge and discharge currents.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

		Price	Packaging			CAD Design Tools		Samples
Device	Status	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
BQ2084DBT-V143	ACTIVE	4.40 \| 1ku	TSSOP (DBT) \| 38	View	50 \| TUBE	Purchase Samples
BQ2084DBT-V143G4	ACTIVE	4.40 \| 1ku	TSSOP (DBT) \| 38	View	50 \| TUBE	Purchase Samples
BQ2084DBTR-V143	ACTIVE	4.00 \| 1ku	TSSOP (DBT) \| 38	View	2000 \| LARGE T&R
BQ2084DBTR-V143G4	ACTIVE	4.00 \| 1ku	TSSOP (DBT) \| 38	View	2000 \| LARGE T&R
BQ2084RTTR-V143	PREVIEW		QFN (RTT) \| 36					Not Available
BQ2084RTTT-V143	PREVIEW		QFN (RTT) \| 36					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 12:16 PM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksBQ2084DBT-V143
Americas	Avnet	>1k
Asia	Farnell Asia	200
Europe	Arrow Northern Europe	150
Europe	Farnell	200
Worldwide	Mouser Electronics	19
TI Lead Time*: 20 WeeksBQ2084DBT-V143G4
None Reported View Distributors
TI Lead Time*: 20 WeeksBQ2084DBTR-V143
Asia	WPI	486
Europe	Avnet-SILICA	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksBQ2084DBTR-V143G4
None Reported View Distributors
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
BQ2084DBT-V143	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2084DBT-V143G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2084DBTR-V143	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2084DBTR-V143G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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 BQ2084-V143

Datasheet

SBS v1.1-Compliant Gas Gauge For Use With The bq29312A (PDF, 895 KB)
11 Sep 2006

Application Notes

CEDV Algorithm Update to the bq2084-V133 and Above (HTM, 8 KB) 565 views
26 Oct 2005 Read Abstract
Thermistor Coefficient Calculator for TI Advanced Fuel Gauges (HTM, 8 KB) 1573 views
04 Oct 2006 Read Abstract
bq2084-V1.40 to bq2084-V1.43 (HTM, 8 KB) 760 views
11 Sep 2006 Read Abstract

View Application Notes for Battery Fuel Gauges

Tools & Software

Name	Part #	Company	Tool / Software Type
BQ2084EVM-001 Gas Gauge Evaluation System for LiIon LiPoly battery packs	BQ2084EVM-001	Texas Instruments	Development Boards/EVMs
USB-Based PC Interface Board for Battery Fuel Gauge Evaluation	EV2300	Texas Instruments	Development Boards/EVMs
MathCAD CEDV Software(ZIP 1031 KB ) 1572 views 09 May 2005

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All End-Equipment

BQ2084-V143 Status: ACTIVE

SBS v1.1 Compliant Gas Gauge for use with the BQ29312A

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Datasheet

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