BQ2004 Status: ACTIVE

Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination

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Datasheet

Fast-Charge IC (Rev. B) (PDF 492 KB)
19 Apr 2005

	BQ2004
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	2
Control Topology	Switchmode
Switching Frequency(kHz)	300
Primary Charge Termination Method	(-)dV, PVD, dT/dt
Pin/Package	16PDIP, 16SOIC
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
BQ2000: Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination
BQ2005: Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery Packs
TPS62040: Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10
BQ2014: NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC
TPS650243: Power Management ICs for Li-Ion Powered Systems

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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
Configurable, direct LED outputs display battery and charge status
Fast-charge termination by V, maximum voltage, maximum temperature, and maximum time
Optional top-off charge and pulsed current maintenance charging
Logic-level controlled low-power mode (< 5µA standby current)

Description

The bq2004 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 bq2004 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 bq2004-based chargers to support battery conditioning and capacity determination.

High-efficiency power conversion is accomplished using the bq2004 as a hysteretic PWM controller for switch-mode regulation of the charging current. The bq2004 may alternatively be used to gate an externally regulated charging current.

View All Description in Datasheet

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
BQ2004PN	ACTIVE	-20 to 70	2.15 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE
BQ2004PNG4	ACTIVE	-20 to 70	2.15 \| 1ku	PDIP (N) \| 16	View	25 \| TUBE
BQ2004SN	ACTIVE	-20 to 70	2.40 \| 1ku	SOIC (D) \| 16	View	40 \| TUBE
BQ2004SNG4	ACTIVE	-20 to 70	2.40 \| 1ku	SOIC (D) \| 16	View	40 \| TUBE
BQ2004SNTR	ACTIVE	-20 to 70	2.15 \| 1ku	SOIC (D) \| 16	View	2500 \| LARGE T&R	Purchase Samples
BQ2004SNTRG4	ACTIVE	-20 to 70	2.15 \| 1ku	SOIC (D) \| 16	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

Reported Distributor Inventory as of 12:16 PM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 14 WeeksBQ2004PN
Americas	Arrow	647
	Avnet	45
	Rochester Electronics	>1k
Asia	WPI	64
Europe	EBV Elektronik	13
Worldwide	DigiKey	366
Worldwide	Mouser Electronics	580
TI Lead Time*: 14 WeeksBQ2004PNG4
Europe	EBV Elektronik	50
Worldwide	Mouser Electronics	112
TI Lead Time*: 20 WeeksBQ2004SN
Americas	Newark	183
Asia	Farnell Asia	183
Asia	WPI	71
Worldwide	DigiKey	637
TI Lead Time*: 20 WeeksBQ2004SNG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksBQ2004SNTR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksBQ2004SNTRG4
Worldwide	DigiKey	Available
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
BQ2004PN	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2004PNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
BQ2004SN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2004SNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2004SNTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
BQ2004SNTRG4	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

Most useful technical documents for BQ2004

Datasheet

Fast-Charge IC (Rev. B) (PDF, 492 KB)
19 Apr 2005

Application Notes

Battery Charger Termination Issues With System Load Applied Across Battery (HTM, 8 KB) 10194 views
21 Apr 2004 Read Abstract
High-Side Current Sensing with Benchmarq's Fast-Charge Control ICs (HTM, 8 KB) 3881 views
05 Sep 1999 Read Abstract
Using NiMH and Li-Ion Batteries in Portable Applications (HTM, 8 KB) 2010 views
05 Sep 1999 Read Abstract
Battery Charger Termination Issues With System Load Applied Across Battery (Rev. A) (HTM, 8 KB) 10194 views
02 Oct 2006 Read Abstract

View Application Notes for Battery Charge Management

User Guides

DV2004S1/ES1/HS1 Fast Charge Dev System Control of On-Board P-FET S-M Reg (Rev. A) (PDF, 2133 KB) 2910 views
30 Aug 2002
EV2014x Gas Gauge and Fast Charge Evaluation Board (HTM, 8 KB) 629 views
05 Sep 1999 Read Abstract
DV2004L3 Fast Charge Development System Control of F-M Linear Reg User's Guide (HTM, 9 KB) 521 views
05 Sep 1999 Read Abstract
DV2004L1 Fast Charge Development System Control of PNP Power Transistor (HTM, 9 KB) 1343 views
05 Sep 1999 Read Abstract
bq2004 Selection Table (PDF, 52 KB) 1374 views
30 Aug 2005

View User Guides for Battery Charge Management

Tools & Software

Name	Part #	Company	Tool / Software Type
BQ2004 Evaluation Module for NiCd/NiMH, switchmode, up to 3A	DV2004S1	Texas Instruments	Development Boards/EVMs
BQ2004 Evaluation Module for NiCd/NiMH, linear	DV2004L1	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
BQ2002	NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2000	Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection 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.
BQ2004E	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.
BQ2000T	Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
BQ2003	Switch-mode NiCd/NiMH Battery Charger with Negative dV and 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.
BQ24100	Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell	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.
BQ24006	Linear 2-cell Li-Ion Battery Charger w/Integrated FET, Bi-Color LED	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
TPS62040	Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
BQ2014	NiCd/NiMH Gas Gauge W/1-Wire (DQ) I/F, 5 LED Drivers, Control Signals For BQ2004 Fast-Charge IC	BATTERY MANAGEMENT-BATTERY FUEL GAUGES	TI customers also evaluated this product.
TPS650243	Power Management ICs for Li-Ion Powered Systems	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
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BQ2004 Status: ACTIVE

Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination

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