BQ2000T Status: ACTIVE

Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination

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Datasheet

Programmable Multi-Chemistry Fast-Charge Management IC (Rev. C) (bq2000t.pdf, 875 KB)
08 Jan 2008 Download

	BQ2000T
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	1
Control Topology	Switchmode
Switching Frequency(kHz)	500
Primary Charge Termination Method	dT/dt, Minimum Current
Pin/Package	8PDIP,8SOIC,8TSSOP
Vin(Max)(V)	7
	Samples
	Inventory

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Product Information

Features

Safe management of fast charge for NiCd, NiMH, or Li-Ion battery packs
High-frequency switching controller for efficient and simple charger design
Pre-charge qualification for detecting shorted, damaged, or overheated cells
Fast-charge termination by t minimum current (Li-Ion), maximum temperature, and maximum charge time
Selectable top-off mode for achieving maximum capacity in NiMH batteries
Programmable trickle-charge mode for reviving deeply discharged batteries and for post-charge maintenance
Built-in battery removal and insertion detection
Sleep mode for low power consumption

Description

The bq2000T is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000T detects the battery chemistry and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable undercharged or overcharged conditions and allows accurate and safe termination of fast charge.

Depending on the chemistry, the bq2000T provides a number of charge termination criteria:

Rate of temperature rise, t (for NiCd and NiMH)
Minimum charging current (for Li-Ion)
Maximum temperature
Maximum charge time

For safety, the bq2000T inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000T uses trickle-charge to condition the battery. For NiMH batteries, the bq2000T provides an optional top-off charge to maximize the battery capacity.

The integrated high-frequency comparator allows the bq2000T to be the basis for a complete, high-efficiency power-conversion circuit for both nickel-based and lithium-based chemistries.

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
BQ2000TPN-B5	ACTIVE	-20 to 70	1.90 \| 100u	PDIP (P) \| 8	View	50 \| TUBE
BQ2000TPW	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE
BQ2000TPWG4	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE
BQ2000TPWR	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
BQ2000TPWRG4	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
BQ2000TSN-B5	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
BQ2000TSN-B5G4	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
BQ2000TSN-B5TR	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
BQ2000TSN-B5TRG4	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples

* 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
BQ2000TPN-B5	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Nov	4 Weeks	Americas	Avnet	20
					DigiKey	56
					Mouser Electronics	192
					Rochester Electronics	>1k
BQ2000TPW	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	6600 \| 26 Nov	4 Weeks	Americas	Arrow	9
		7911 \| 8 Jan			DigiKey	389
					Mouser Electronics	90
					Rochester Electronics	451
				Asia	WPI	250
BQ2000TPWG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	6600 \| 26 Nov	4 Weeks	Americas	Mouser Electronics	260
	0*	7911 \| 8 Jan	4 Weeks
BQ2000TPWR	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	1300 \| 26 Nov	20 Weeks	None Reported View Distributors
		7854 \| 5 Jan
		>10k \| 8 Jan
BQ2000TPWRG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	1300 \| 26 Nov	20 Weeks	None Reported View Distributors
		7854 \| 5 Jan
		>10k \| 8 Jan
BQ2000TSN-B5	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 18 Dec	4 Weeks	Americas	Arrow	63
					Newark	225
					Rochester Electronics	>1k
				Asia	WPI	46
				Europe	Arrow Northern Europe	25
					Arrow Southern Europe	225
					Farnell	447
					Spoerle	75
BQ2000TSN-B5G4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 18 Dec	4 Weeks	Europe	EBV Elektronik	54
BQ2000TSN-B5TR	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	5000 \| 26 Nov	4 Weeks	Americas	Rochester Electronics	>1k
	0*	>10k \| 18 Dec	4 Weeks	Asia	WPI	>1k
BQ2000TSN-B5TRG4	As of 10:16 AM GMT, 19 Nov 2008			As of 10:16 AM GMT, 19 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	5000 \| 26 Nov	4 Weeks	Americas	Avnet	>1k
	0*	>10k \| 18 Dec	4 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
BQ2000TPN-B5	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2000TPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000TPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000TPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000TPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000TSN-B5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2000TSN-B5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2000TSN-B5TR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2000TSN-B5TRG4	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

Programmable Multi-Chemistry Fast-Charge Management IC (Rev. C) (bq2000t.pdf, 875 KB)
08 Jan 2008 Download

Application Notes

Battery Charger Termination Issues With System Load Applied Across Battery (Rev. A) (slva166a.htm, 8 KB)
02 Oct 2006 Abstract
U-504 Using the bq2000/T to Control Fast Charge (Rev. B) (slua064b.htm, 8 KB)
02 Dec 2004 Abstract
Battery Charger Termination Issues With System Load Applied Across Battery (slva166.htm, 8 KB)
21 Apr 2004 Abstract

View Application Notes for Battery Charge Management

User Guides

View User Guides for Battery Charge Management

Tools & Software

Name	Part #	Company	Tool / Software Type
Temp Sense Designer Software	TEMPSENSE-SW	Texas Instruments	Analysis Software
BQ2000T Evaluation Module for Multi-Chemistry, switchmode	DV2000TS1	Texas Instruments	Development Boards/EVMs
Evaluation Module for Battery Charge Management IC	BQ2000EVM	Texas Instruments	Development Boards/EVMs

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