BQ24314 Status: ACTIVE

Charger front end protection IC with 30V max vin and 5.85V OVP

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Datasheet

Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC (Rev. C) (bq24314.pdf, 1087 KB)
18 Oct 2007 Download

	BQ24300	BQ24304	BQ24314	BQ24314A	BQ24315	BQ24316
Input Voltage(Max)(V)	30	30	30	30	30	30
Input Over-Voltage Protection(V)	10.5	10.5	5.85	5.85	5.85	6.80
Input Over-Current Protection(A)	0.3	0.3	Programmable up to 1.5	1.5	1.5	Programmable up to 1.5
Battery Over-Voltage Protection(Max)(V)	4.4	4.4	4.4	4.4	4.4	4.4
Battery Over-Voltage Protection(Typ)(V)	4.35	4.35	4.35	4.35	4.35	4.35
Optional Functions	Reverse polarity protection	Reverse polarity protection	Fault indication		Fault Indication	Fault indication
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

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Product Information

Features

Provides Protection for Three Variables:
- Input Overvoltage, with Rapid Response in <: 1 µs
- User-Programmable Overcurrent with Current Limiting
- Battery Overvoltage
30V Maximum Input Voltage
Supports up to 1.5A Input Current
Robust Against False Triggering Due to Current Transients
Thermal Shutdown
Enable Input
Status Indication — Fault Condition
Available in Space-Saving Small 8 Lead 2×2 SON and 12 Lead 4x3 SON Packages
APPLICATIONS
- Mobile Phones and Smart Phones
- PDAs
- MP3 Players
- Low-Power Handheld Devices
- Bluetooth Headsets

PowerPAD Is a trademark of Texas Instruments

Description

The bq24314 and bq24316 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it becomes too hot. The input overcurrent threshold is user-programmable.

The IC can be controlled by a processor and also provides status information about fault conditions to the host.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging		CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Package QTY \| Package Carrier	Symbols	Samples
BQ24314DSGR	ACTIVE	-40 to 85	0.70 \| 100u	SON (DSG) \| 8	3000 \| LARGE T&R
BQ24314DSGRG4	ACTIVE	-40 to 85	0.70 \| 100u	SON (DSG) \| 8	3000 \| LARGE T&R
BQ24314DSGT	ACTIVE	-40 to 85	0.80 \| 100u	SON (DSG) \| 8	250 \| SMALL T&R	Purchase Samples
BQ24314DSGTG4	ACTIVE	-40 to 85	0.80 \| 100u	SON (DSG) \| 8	250 \| SMALL T&R	Purchase Samples
BQ24314DSJR	ACTIVE	-40 to 85	0.85 \| 100u	SON (DSJ) \| 12	3000 \| LARGE T&R
BQ24314DSJRG4	ACTIVE	-40 to 85	0.85 \| 100u	SON (DSJ) \| 12	3000 \| LARGE T&R
BQ24314DSJT	ACTIVE	-40 to 85	0.90 \| 100u	SON (DSJ) \| 12	250 \| SMALL T&R	Purchase Samples
BQ24314DSJTG4	ACTIVE	-40 to 85	0.90 \| 100u	SON (DSJ) \| 12	250 \| SMALL 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
BQ24314DSGR	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 17 Oct	6 Weeks	Americas	DigiKey	>1k
	0*		6 Weeks	Americas	Mouser Electronics	>1k
BQ24314DSGRG4	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 17 Oct	6 Weeks	None Reported View Distributors
BQ24314DSGT	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1250*	>10k \| 10 Nov	6 Weeks	None Reported View Distributors
BQ24314DSGTG4	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1250*	>10k \| 10 Nov	6 Weeks	None Reported View Distributors
BQ24314DSJR	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Feb	12 Weeks	Americas	DigiKey	492
BQ24314DSJRG4	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Feb	12 Weeks	None Reported View Distributors
BQ24314DSJT	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Feb	12 Weeks	None Reported View Distributors
BQ24314DSJTG4	As of 9:15 AM GMT, 10 Oct 2008			As of 9:15 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Feb	12 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
BQ24314DSGR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSGRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSGT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSGTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSJR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSJRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSJT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24314DSJTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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

Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC (Rev. C) (bq24314.pdf, 1087 KB)
18 Oct 2007 Download

Application Notes

Battery-charger front-end IC improves charging-system safety (slyt294.pdf, 199 KB)
16 May 2008 Download
Q2 2008 Issue Analog Applications Journal (slyt291.pdf, 1329 KB)
16 May 2008 Download
How to Meet 24V Hot Plug-In Test for Charge Front-End bq243xx (slua446.htm, 8 KB)
02 Jan 2008 Abstract
High Voltage Pulse Transient Safety Design fro bq243xx (slua442.htm, 8 KB)
04 Dec 2007 Abstract
Extending Single Input Charger to Dual Input Applications (slua437.htm, 8 KB)
07 Sep 2007 Abstract

User Guides

bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. A) (sluu291a.htm, 8 KB)
01 Apr 2008 Abstract
bq24314/6 DSJ EVM (HPA251) for Li+ Charger Front End Protection IC (sluu292.htm, 8 KB)
20 Aug 2007 Abstract

Tools & Software

Name	Part #	Company	Tool / Software Type
BQ24314 Evaluation Module	BQ24314EVM	Texas Instruments	Development Boards/EVMs
Evaluation Moldule for BQ24314 Li+ Charger Front End Protection IC	BQ24314EVM-251	Texas Instruments	Development Boards/EVMs

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Related End Equipments

MP3 Player/Recorder (Portable Audio)

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BQ24314 Status: ACTIVE

Charger front end protection IC with 30V max vin and 5.85V OVP

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