BQ2002C Status: ACTIVE

NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination

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Datasheet

NiCD/NiMH Fast-Charge Management ICs (bq2002c.pdf, 262 KB)
05 Sep 1999 Download

	BQ2002C
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	1
Control Topology	Current Limited
Primary Charge Termination Method	(-)dV, PVD
Pin/Package	8PDIP,8SOIC
Vin(Max)(V)	7
	Samples
	Inventory

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Product Information

Features

Fast charge of nickel cadmium or nickel-metal hydride batteries
Direct LED output displays charge status
Fast-charge termination by -V, maximum voltage, maximum temperature, and maximum time
Internal band-gap voltage reference
Selectable pulse-trickle charge rates
Low-power mode
8-pin 300-mil DIP or 150-mil SOIC

Description

The bq2002C Fast-Charge IC is a low-cost CMOS battery-charge controller providing reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002C to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002C integrates fast charge with pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells.

Fast charge is initiated on application of the charging supply or battery replacement. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.

Fast charge is terminated by any of the following:

Peak voltage detection (PVD)
Negative delta voltage (-V)
Maximum voltage
Maximum temperature
Maximum time

After fast charge, the bq2002C pulse-trickles the battery per the preconfigured limits. Fast charge may be inhibited using the INH pin. The bq2002C may also be placed in low-standby- power mode to reduce system power consumption.

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
BQ2002CPN	ACTIVE	0 to 70	1.05 \| 100u	PDIP (P) \| 8	View	50 \| TUBE
BQ2002CPNE4	ACTIVE	0 to 70	1.05 \| 100u	PDIP (P) \| 8	View	50 \| TUBE
BQ2002CSN	ACTIVE	0 to 70	1.05 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
BQ2002CSNG4	ACTIVE	0 to 70	1.05 \| 100u	SOIC (D) \| 8	View	75 \| TUBE
BQ2002CSNTR	ACTIVE	0 to 70	1.05 \| 100u	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
BQ2002CSNTRG4	ACTIVE	0 to 70	1.05 \| 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
BQ2002CPN	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*	6050 \| 26 Nov	4 Weeks	Americas	DigiKey	162
		>10k \| 15 Dec			Newark	10
					Rochester Electronics	>1k
				Europe	Farnell	97
BQ2002CPNE4	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*	6050 \| 26 Nov	4 Weeks	Americas	Mouser Electronics	298
	0*	>10k \| 15 Dec	4 Weeks
BQ2002CSN	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*	1875 \| 26 Nov	4 Weeks	Americas	Arrow	>1k
		>10k \| 10 Dec			Avnet	>1k
					DigiKey	>1k
					Newark	>1k
					Rochester Electronics	>1k
				Asia	WPI	120
				Europe	Farnell	238
BQ2002CSNG4	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*	1875 \| 26 Nov	4 Weeks	Europe	EBV Elektronik	75
	0*	>10k \| 10 Dec	4 Weeks
BQ2002CSNTR	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*	7500 \| 26 Nov	4 Weeks	None Reported View Distributors
	0*	>10k \| 10 Dec	4 Weeks
BQ2002CSNTRG4	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*	7500 \| 26 Nov	4 Weeks	None Reported View Distributors
	0*	>10k \| 10 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
BQ2002CPN	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2002CPNE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2002CSN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2002CSNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2002CSNTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2002CSNTRG4	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 TI Recommends

Datasheets

NiCD/NiMH Fast-Charge Management ICs (bq2002c.pdf, 262 KB)
05 Sep 1999 Download

Application Notes

Battery Charger Termination Issues With System Load Applied Across Battery (Rev. A) (slva166a.htm, 8 KB)
02 Oct 2006 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

bq2002 Selection Table (sluu229.pdf, 51 KB)
30 Aug 2005 Download

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

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