BQ26500 Status: ACTIVE

Complete Battery Fuel Gauge for One and Two Cell Li-Ion Applications

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Datasheet

bq26500 Single Cell Li-Ion and Li-Pol Battery Gas Gauge IC (Rev. A) (bq26500.pdf, 378 KB)
09 Oct 2003 Download

	BQ26500	BQ26501
Charge vs Discharge Relationship	C=D	C=D
Battery Capacity(Min)(mAh)	300	300
Battery Capacity(Max)(mAh)	6000	6000
Communication Interface	HDQ	HDQ
Pin/Package	8TSSOP	8TSSOP
Approx. Price (US$)	2.35 \| 1ku	2.35 \| 1ku
	Samples	Samples
	Inventory	Inventory

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BQ27350: Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge Technology
TPS73018: Single Output LDO, 200mA, Fixed(1.8V), High PSRR, Low Noise
TPS61027: 5-V Output, 1.5-A Switch, 96% Efficient Boost Converter w/ LDO Down-Mode, QFN-10
TPS65120: 5V/20mA(I/O), 4-CH high-accuracy Multi-Converter w/ 3.3V LDO for LCD Bias, 16 QFN

Product Information

Features

Reports Accurate State-of-Charge in Li-Ion and Li-Pol Cells, No System Processor Calculations Needed
Reports Cell Temperature and Voltage
High-Accuracy Coulometric Charge and Discharge Current Integration with Automatic Offset Cancellation
Requires No Offset Calibration
Programmable Input/Output Port
Internal Time-Base Eliminates External Crystal Oscillator
Four Automatic Low-Power Operating Modes
- Active: < 100 µA
- Sleep: < 2.5 µA
- Ship: < 1.7 µA
- Hibernate: < 1.5 µA
Small 8-Pin TSSOP Package
APPLICATIONS
- PDAs
- Smart Phones
- MP3 Players
- Digital Cameras
- Internet Appliances
- Handheld Devices

Description

The bq26500, the first in the bqJUNIOR™ family of advanced gas gauge device for handheld applications, is a highly accurate standalone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting device targeted at space limited portable applications. The device monitors a voltage drop across a small current sense resistor connected in series with the battery to determine charge and discharge activity of the battery. Compensations for battery temperature, self-discharge, and rate of discharge are applied to the charge counter to provide available capacity across a wide range of operating conditions. Battery capacity is automatically recalibrated, or learned, in the course of a discharge cycle from full to empty. Internal registers include available capacity, cell temperature and voltage, state-of-charge, and status and control registers.

The bq26500 can operate directly from single-cell Li-Ion and Li-Pol batteries and communicates to the system over a simple one-wire bi-directional serial interface. The 5-kbits/s HDQ bus interface reduces communication overhead in the external microcontroller.

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
BQ26500PW	ACTIVE	0 to 70	2.35 \| 1ku	TSSOP (PW) \| 8	View	100 \| TUBE	Purchase Samples
BQ26500PWG4	ACTIVE	0 to 70	2.35 \| 1ku	TSSOP (PW) \| 8	View	100 \| TUBE	Purchase Samples
BQ26500PWR	ACTIVE	0 to 70	2.35 \| 1ku	TSSOP (PW) \| 8	View	2000 \| LARGE T&R
BQ26500PWRG4	ACTIVE	0 to 70	2.35 \| 1ku	TSSOP (PW) \| 8	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
BQ26500PW	As of 10:15 AM GMT, 19 Nov 2008			As of 10:15 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	4100 \| 26 Nov	4 Weeks	Americas	Avnet	200
		7869 \| 29 Dec			Newark	80
					Rochester Electronics	>1k
				Asia	WPI	103
BQ26500PWG4	As of 10:15 AM GMT, 19 Nov 2008			As of 10:15 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	4100 \| 26 Nov	4 Weeks	None Reported View Distributors
	0*	7869 \| 29 Dec	4 Weeks
BQ26500PWR	As of 10:15 AM GMT, 19 Nov 2008			As of 10:15 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	2000 \| 26 Dec	6 Weeks	Americas	DigiKey	748
		5912 \| 29 Dec		Americas	Rochester Electronics	>1k
		2000 \| 31 Dec		Asia	WPI	>1k
		>10k \| 7 Jan
BQ26500PWRG4	As of 10:15 AM GMT, 19 Nov 2008			As of 10:15 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	2000 \| 26 Dec	6 Weeks	None Reported View Distributors
		5912 \| 29 Dec
		2000 \| 31 Dec
		>10k \| 7 Jan
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
BQ26500PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ26500PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ26500PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ26500PWRG4	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

Datasheets

bq26500 Single Cell Li-Ion and Li-Pol Battery Gas Gauge IC (Rev. A) (bq26500.pdf, 378 KB)
09 Oct 2003 Download

Application Notes

HDQ Communication Basics (Rev. A) (slua408a.htm, 8 KB)
18 Sep 2008 Abstract
Complete battery-pack design for one- or two-cell portable applications (slyt248.pdf, 164 KB)
17 Jul 2006 Download
Choosing Between Battery Gas Gauges & Monitors to Track Charge Availabilility (slua358.htm, 8 KB)
27 Sep 2005 Abstract
HDQ Compatibility Between OMAP and BQ Products (slua319.htm, 9 KB)
17 Jun 2004 Abstract
Determining the Values to Program the bq26500/bq26501 EEPROM (slua317.htm, 8 KB)
17 Jun 2004 Abstract
Multicell Li-Ion and Li-Pol Battery Gas-Gauge Application Using bq26500 (slua300.htm, 8 KB)
29 Jan 2004 Abstract
Configuring the bq26500 for Gas Gauging Applications (slua298.htm, 8 KB)
15 Sep 2003 Abstract

View Application Notes for Battery Fuel Gauges

User Guides

bq2650x Tester-Kit Single Cell Battery Fuel Gauge Test and Program (Rev. A) (sluu185a.htm, 8 KB)
23 Apr 2004 Abstract
bq26500 single cellbattery fuel evaluation module (sluu174.htm, 8 KB)
23 Sep 2003 Abstract

Tools & Software

Name	Part #	Company	Tool / Software Type
bq26500 Evaluation System	BQ26500EVM-001	Texas Instruments	Development Boards/EVMs

Alternative Products - Are similar to BQ26500
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Complementary Products - Can be used with BQ26500
Customers Who Evaluated This Product Also Evaluated...
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BQ26500 Status: ACTIVE

Complete Battery Fuel Gauge for One and Two Cell Li-Ion Applications

Most Popular Links

Datasheet

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