BQ2000 Status: ACTIVE

Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination

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Datasheet

Programmable Multi-Chemistry Fast-Charge Management IC (Rev. C) (bq2000.pdf, 579 KB)
08 Jan 2008 Download

	BQ2000
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	1
Control Topology	Switchmode
Switching Frequency(kHz)	500
Primary Charge Termination Method	PVD, Minimum Current
Pin/Package	8PDIP,8SOIC,8TSSOP
Vin(Max)(V)	7
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

BQ2002: NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination
BQ2000T: Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination
BQ24745: SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator
UCC3895: BiCMOS Advanced Phase Shift PWM Controller
TL431A: Adjustable Precision Shunt Regulator
TPS3823-33: Supply Voltage Supervisor w/Watchdog input and manual reset

More Related Products

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 peak voltage (PVD), 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 postcharge maintenance
Built-in battery removal and insertion detection
Sleep mode for low power consumption

Description

The bq2000 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 bq2000 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 bq2000 provides a number of charge termination criteria:

Peak voltage, PVD (for NiCd and NiMH)
Minimum charging current (f or Li-Ion)
Maximum temperature
Maximum charge time

For safety, the bq2000 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 bq2000 uses trickle-charge to condition the battery. For NiMH batteries, the bq2000 provides an optional top-off charge to maximize the battery capacity.

The integrated high-frequency comparator allows the bq2000 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
BQ2000PN-B5	ACTIVE	-20 to 70	1.90 \| 100u	PDIP (P) \| 8	View	50 \| TUBE
BQ2000PW	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE
BQ2000PWG4	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	150 \| TUBE
BQ2000PWR	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
BQ2000PWRG4	ACTIVE	-20 to 70	1.90 \| 100u	TSSOP (PW) \| 8	View	2000 \| LARGE T&R	Purchase Samples
BQ2000SN-B5	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
BQ2000SN-B5G4	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
BQ2000SN-B5TR	ACTIVE	-20 to 70	1.90 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
BQ2000SN-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
BQ2000PN-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*	1200 \| 26 Nov	4 Weeks	Americas	DigiKey	>1k
		4532 \| 2 Dec			Mouser Electronics	849
		5469 \| 2 Jan			Newark	639
					Rochester Electronics	>1k
				Asia	WPI	60
				Europe	Avnet-SILICA	950
BQ2000PW	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	280
					Mouser Electronics	458
					Newark	150
					Rochester Electronics	>1k
				Asia	WPI	86
				Europe	Avnet-SILICA	280
				Europe	EBV Elektronik	12
BQ2000PWG4	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	None Reported View Distributors
BQ2000PWR	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*		20 Weeks	Americas	Rochester Electronics	>1k
BQ2000PWRG4	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*		20 Weeks	None Reported View Distributors
BQ2000SN-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*	6826 \| 26 Nov	4 Weeks	Americas	Mouser Electronics	574
		>10k \| 18 Dec		Americas	Rochester Electronics	5
				Asia	WPI	52
				Europe	Abacus Polar	300
					Arrow Southern Europe	>1k
					Farnell	306
BQ2000SN-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*	6826 \| 26 Nov	4 Weeks	Europe	EBV Elektronik	75
	0*	>10k \| 18 Dec	4 Weeks
BQ2000SN-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*	>10k \| 26 Dec	6 Weeks	Americas	Avnet	>1k
	0*		6 Weeks	Americas	Rochester Electronics	471
BQ2000SN-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*	>10k \| 26 Dec	6 Weeks	None Reported View Distributors
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
BQ2000PN-B5	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2000PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ2000SN-B5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2000SN-B5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2000SN-B5TR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2000SN-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) (bq2000.pdf, 579 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
High Efficiency Dual Chemistry Charger Using the bq2000 (slua013.htm, 8 KB)
05 Sep 1999 Abstract

View Application Notes for Battery Charge Management

User Guides

BQ2000EVM (sluu270.pdf, 598 KB)
13 Feb 2007 Download
DV2000S1 Multi-Chemistry Switching Charger Development System User's Guide (Rev. A) (sluu006a.htm, 8 KB)
31 May 2000 Abstract

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
BQ2000 Evaluation Module for Multi-Chemistry, switchmode	DV2000S1	Texas Instruments	Development Boards/EVMs
Evaluation Module for Battery Charge Management IC	BQ2000EVM	Texas Instruments	Development Boards/EVMs

Alternative Products - Are similar to BQ2000
Part #	Name	Comments
BQ24100	Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell	The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Similar to bq2000 but with Internal Power FETs and 18V Vin
Customers Who Evaluated This Product Also Evaluated...
BQ2002	NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination	TI customers also evaluated this product.
BQ2000T	Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination	TI customers also evaluated this product.
BQ24745	SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator	TI customers also evaluated this product.
BQ2004	Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination	TI customers also evaluated this product.
BQ2954	Switch-mode Li-Ion Charge Controller	TI customers also evaluated this product.
BQ24105	Standalone Synchronous Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1 to 3 Cells	TI customers also evaluated this product.
BQ24100	Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell	TI customers also evaluated this product.

Complementary Products - Can be used with BQ2000
Part #	Name	Product Family	Comments
BQ2019	FLASH-Based Precision Multi-Chemistry Charge/Discharge Counter W/High-Speed 1-Wire I/F (HDQ)	BATTERY MANAGEMENT- BATTERY FUEL GAUGES	The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack See Literature slus465e
Customers Who Evaluated This Product Also Evaluated...
UCC3895	BiCMOS Advanced Phase Shift PWM Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TL431A	Adjustable Precision Shunt Regulator	REFERENCES-SHUNT VOLTAGE REFERENCES	TI customers also evaluated this product.
TPS3823-33	Supply Voltage Supervisor w/Watchdog input and manual reset	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
UCC28060	Natural Interleaved Dual-Phase Transition-Mode PFC Controller	AC/DC AND DC/DC POWER SUPPLIES-POWER FACTOR CORRECTION ICS	TI customers also evaluated this product.

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