BQ24125 Status: ACTIVE

Single Chip Switchmode Li-Ion and Li-Polymer Charge Management IC with Enhanced EMI Performance

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Datasheet

Single-Chip Switchmode, Li-Ion & Li-Polymer Charge Mgmt IC w/enhanced EMI Perf (Rev. G) (bq24125.pdf, 1165 KB)
12 Aug 2008 Download

	BQ24120	BQ24123	BQ24125
# Series Cells	1	1, 2	1, 2, 3
Charge Current(Max)(A)	2	2	2
Charge Status Outputs	2	2	2
Control Topology	Switchmode	Switchmode	Switchmode
Switching Frequency(kHz)	1100	1100	1100
Primary Charge Termination Method	Minimum Current	Minimum Current	Minimum Current
Pin/Package	20QFN	20QFN	20QFN
Vin(Max)(V)	20	20	20
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

BQ24085: 750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation
BQ24702: Multi-Chemistry Battery Charge Controller and System Power Selector
BQ24070: Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V
TPS54283: Dual 2A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 300 kHz
TPS61020: Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10

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Product Information

Features

Enhanced EMI Performance
Integrated Power FETs For Up To 2-A Charge Rate
Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer Battery Packs
Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
High-Accuracy Voltage and Current Regulation
Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
20-V Absolute Maximum Voltage Rating on IN and OUT Pins
Accurate High-Side Battery Current Sensing
Battery Temperature Monitoring
Automatic Sleep Mode for Low Power Consumption
Reverse Leakage Protection Prevents Battery Drainage
Thermal Shutdown and Protection
Built-In Battery Detection
Available in 20 pin 3,5 mm x 4,5 mm QFN Package
APPLICATIONS
- Handheld Products
- Portable Media Players
- Industrial and Medical Equipment
- Portable Equipment
- Portable DVD Players

bqSWITCHER, PowerPAD are trademarks of Texas Instruments.

Description

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when V_CC supply is removed.

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	Samples
BQ24125RHLR	ACTIVE	-40 to 125	4.70 \| 100u	QFN (RHL) \| 20	View	3000 \| LARGE T&R
BQ24125RHLRG4	ACTIVE	-40 to 125	4.70 \| 100u	QFN (RHL) \| 20	View	3000 \| LARGE T&R
BQ24125RHLT	ACTIVE	-40 to 125	5.15 \| 100u	QFN (RHL) \| 20	View	250 \| SMALL T&R	Purchase Samples
BQ24125RHLTG4	ACTIVE	-40 to 125	5.15 \| 100u	QFN (RHL) \| 20	View	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
BQ24125RHLR	As of 9:15 AM GMT, 05 Oct 2008			As of 9:15 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	3922 \| 5 Dec	6 Weeks	Americas	DigiKey	>1k
	>10k*	>10k \| 29 Dec	6 Weeks	Americas	Mouser Electronics	>1k
BQ24125RHLRG4	As of 9:15 AM GMT, 05 Oct 2008			As of 9:15 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	3922 \| 5 Dec	6 Weeks	None Reported View Distributors
	>10k*	>10k \| 29 Dec	6 Weeks
BQ24125RHLT	As of 9:15 AM GMT, 05 Oct 2008			As of 9:15 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	3250*	3923 \| 1 Dec	6 Weeks	Americas	Arrow	250
		>10k \| 22 Dec			Avnet	250
					Newark	250
BQ24125RHLTG4	As of 9:15 AM GMT, 05 Oct 2008			As of 9:15 AM GMT, 05 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	3250*	3923 \| 1 Dec	6 Weeks	None Reported View Distributors
	3250*	>10k \| 22 Dec	6 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
BQ24125RHLR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24125RHLRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24125RHLT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
BQ24125RHLTG4	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

Single-Chip Switchmode, Li-Ion & Li-Polymer Charge Mgmt IC w/enhanced EMI Perf (Rev. G) (bq24125.pdf, 1165 KB)
12 Aug 2008 Download

Application Notes

Using the bq24105/25 to Charge LiFePO4 battery (slua443.htm, 8 KB)
17 Dec 2007 Abstract

View Application Notes for Battery Charge Management

User Guides

Using the bq24120/3 (bqSwitcher)(TM) (Rev. A) (sluu236a.pdf, 346 KB)
05 Nov 2007 Download

View User Guides for Battery Charge Management

Tools & Software

Name	Part #	Company	Tool / Software Type
BQ24125 Evaluation Module	BQ24125EVM-003	Texas Instruments	Development Boards/EVMs

Alternative Products - Are similar to BQ24125
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
BQ24085	750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation	TI customers also evaluated this product.
BQ24702	Multi-Chemistry Battery Charge Controller and System Power Selector	TI customers also evaluated this product.
BQ24070	Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V	TI customers also evaluated this product.
BQ24721C	Smart Battery Charger with SMBus and System Power Selector, Softer Turn-On	TI customers also evaluated this product.
BQ24705	Host-Controlled Multi-Chemistry Battery Charger With Low Input Power Detect	TI customers also evaluated this product.
BQ24109	SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POLYMER CHARGE-MANAGEMENT IC WITH INTEGRATED POWER FETs (bqSWI	TI customers also evaluated this product.

Complementary Products - Can be used with BQ24125
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS54283	Dual 2A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 300 kHz	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS61020	Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.

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