BQ2003 Status: ACTIVE

Switch-mode NiCd/NiMH Battery Charger with Negative dV and dT/dt Termination

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Datasheet

Fast-Charge IC (Rev. A) (PDF 173 KB)
21 Feb 2000

	BQ2003
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	2
Control Topology	Switchmode
Switching Frequency(kHz)	300
Primary Charge Termination Method	(-)dV, dT/dt
Pin/Package	16PDIP, 16SOIC
Vin(Max)(V)	7
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

BQ2000: Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination
BQ2002: NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination
BQ2004: Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination

More Related Products

Product Information

Features

Fast charge and conditioning of nickel cadmium or nickel-metal hydride batteries
Hysteretic PWM switch-mode current regulation or gated control of an external regulator
Easily integrated into systems or used as a stand-alone charger
Pre-charge qualification of temperature and voltage
Direct LED outputs display battery and charge status
Fast-charge termination by V, maximum voltage, maximum temperature, and maximum time
Optional top-off charge

Description

The bq2003 Fast Charge IC provides comprehensive fast charge control functions together with high-speed switching power control circuitry on a monolithic CMOS device.

Integration of closed-loop current control circuitry allows the bq2003 to be the basis of a cost-effective solution for stand-alone and system-integrated chargers for batteries of one or more cells.

Switch-activated discharge-before-charge allows bq2003-based chargers to support battery conditioning and capacity determination.

High-efficiency power conversion is accomplished using the bq2003 as a hysteretic PWM controller for switch-mode regulation of the charging current. The bq2003 may alternatively be used to gate an externally regulated charging current.

Fast charge may begin on application of the charging supply, replacement of the battery, or switch depression. For safety, fast charge is inhibited unless/until the battery temperature and voltage are within configured limits.

Temperature, voltage, and time are monitored throughout fast charge. Fast charge is terminated by any of the following:

Rate of temperature rise (t)
Negative delta voltage (-V)
Maximum voltage
Maximum temperature
Maximum time

After fast charge, an optional top-off phase is available. Constant-current maintenence charge is provided by an external trickle resistor.

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
BQ2003PN	ACTIVE	0 to 70	2.20 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE
BQ2003PN-N	ACTIVE	-40 to 85	2.20 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE	Purchase Samples
BQ2003PNE4	ACTIVE	0 to 70	2.20 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE
BQ2003S	ACTIVE	0 to 70	2.45 \| 1ku	SOIC (DW) \| 16	View	40 \| TUBE
BQ2003S-N	ACTIVE	-40 to 85	2.45 \| 1ku	SOIC (DW) \| 16	View	40 \| TUBE	Purchase Samples
BQ2003S-NG4	ACTIVE	-40 to 85	2.45 \| 1ku	SOIC (DW) \| 16	View	40 \| TUBE	Purchase Samples
BQ2003S-NTR	ACTIVE	-40 to 85	2.20 \| 1ku	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
BQ2003S-NTRG4	ACTIVE	-40 to 85	2.20 \| 1ku	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
BQ2003SG4	ACTIVE	0 to 70	2.45 \| 1ku	SOIC (DW) \| 16	View	40 \| TUBE
BQ2003STR	ACTIVE	0 to 70	2.20 \| 1ku	SOIC (DW) \| 16	View	2000 \| LARGE T&R	Purchase Samples
BQ2003STRG4	ACTIVE	0 to 70	2.20 \| 1ku	SOIC (DW) \| 16	View	2000 \| TUBE	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

Reported Distributor Inventory as of 12:08 PM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksBQ2003PN
Americas	Avnet	120
Americas	Rochester Electronics	80
Asia	Farnell Asia	100
Europe	Abacus Polar	250
	Avnet-SILICA	93
	Compel	2
	Farnell	100
	Spoerle	125
Worldwide	Mouser Electronics	105
TI Lead Time*: 1 WeekBQ2003PN-N
Americas	Arrow	100
Europe	EBV Elektronik	25
TI Lead Time*: 20 WeeksBQ2003PNE4
None Reported View Distributors
TI Lead Time*: 4 WeeksBQ2003S
Americas	Avnet	240
Americas	Rochester Electronics	915
Europe	Arrow Southern Europe	43
Europe	Avnet-SILICA	93
TI Lead Time*: 4 WeeksBQ2003S-N
Americas	Avnet	3
Americas	Rochester Electronics	>1k
TI Lead Time*: 4 WeeksBQ2003S-NG4
None Reported View Distributors
TI Lead Time*: 4 WeeksBQ2003S-NTR
Americas	Rochester Electronics	>1k
TI Lead Time*: 4 WeeksBQ2003S-NTRG4
None Reported View Distributors
TI Lead Time*: 4 WeeksBQ2003SG4
Asia	Farnell Asia	102
Europe	Avnet-SILICA	32
Europe	Farnell	102
TI Lead Time*: 4 WeeksBQ2003STR
Americas	Rochester Electronics	>1k
TI Lead Time*: 4 WeeksBQ2003STRG4
Americas	Rochester Electronics	>1k
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
BQ2003PN	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2003PN-N	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2003PNE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2003S	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003S-N	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003S-NG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003S-NTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003S-NTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003SG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003STR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2003STRG4	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

Most useful technical documents for BQ2003

Datasheet

Fast-Charge IC (Rev. A) (PDF, 173 KB)
21 Feb 2000

Application Notes

U-505 Using the bq2003 to Control Fast Charge (HTM, 8 KB) 1059 views
05 Sep 1999 Read Abstract
U-506 Step-Down Switching Current - Regulation Using the bq2003 Fast-Charge IC (HTM, 8 KB) 1041 views
05 Sep 1999 Read Abstract

View Application Notes for Battery Charge Management

User Guides

DV2003L1 Fast Charge Development System Control of On-Board Linear Current (HTM, 9 KB) 1333 views
05 Sep 1999 Read Abstract
DV2003S2 Fast Charge Development System Control of On-Board n-FET Switch-Mode (HTM, 9 KB) 649 views
05 Sep 1999 Read Abstract
DV2003S1 Fast Charge Development System User's Guide (HTM, 8 KB) 554 views
05 Sep 1999 Read Abstract
DV2003L3 Fast Charge Development System Control of Modulated Linear Regulator (HTM, 8 KB) 366 views
05 Sep 1999 Read Abstract

View User Guides for Battery Charge Management

Tools & Software

Name	Part #	Company	Tool / Software Type
BQ2003 Evaluation Module for NiCd/NiMH, linear	DV2003L1	Texas Instruments	Development Boards/EVMs
BQ2003 Evaluation Module for NiCd/NiMH, switchmode, up to 3A	DV2003S1	Texas Instruments	Development Boards/EVMs
BQ2003 Evaluation Module for NiCd/NiMH, switchmode, up to 6A	DV2003S2	Texas Instruments	Development Boards/EVMs
Quick Search Selection Tool for Battery Chargers	BATTERY_CHARGERS_SELECTION_TOOL	Texas Instruments	Free Evaluation Tools

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
BQ2000	Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2002	NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2004	Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2005	Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery Packs	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2002D	NiCd/NiMH Charge Controller with dT/dt Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2000T	Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2002T	NiCd/NiMH Charge Controller with dT/dt Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ24400	Switch-mode NiCd/NiMH Battery Charger with Peak Voltage Detection Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.

BQ2003 Status: ACTIVE

Switch-mode NiCd/NiMH Battery Charger with Negative dV and dT/dt Termination

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Datasheet

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Tools & Software

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