TPS61050 Status: ACTIVE

1.2A High Power White LED Driver with I2C Compatible Interface

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Datasheet

Sync Boost Converter w/I2C Compatible Interface High Power LED White Driver (tps61050.pdf, 1516 KB)
12 Dec 2006 Download

	TPS61050	TPS61052	TPS61054	TPS61055
Topology	Boost	Boost	Boost	Boost
Type	Inductive	Inductive	Inductive	Inductive
Vin(Min)(V)	2.5	2.5	2.5	2.5
Vin(Max)(V)	5.5	5.5	6	6
Switch Current Limit(Typ)(A)	1.5	1.5	1.5	1.0
Output Voltage(Max)(V)	5.5	5.25	5	5
Switching Frequency(Max)(kHz)	2000	2000	2000	2000
LED(#)	1	1	1	1
LED Configuration	Series	Series	Series	Series
Over-Voltage Protection(Min)(V)	5.8	5.8	5.7	5.7
Peak Efficiency(%)	96	96	96	96
Iq(Typ)(mA)	8.5	8.5	8.5	8.5
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Pin/Package	10SON,12DSBGA	10SON,12DSBGA	10SON,12DSBGA	10SON,12DSBGA
Iout(Max)(A)	1.2	1.2	1.2	1.2
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS61160: White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package
TPS61180: 1.5A White LED Driver for Notebooks
TPS75105: Low Dropout, Two-Bank LED Driver with PWM Brightness Control
BQ24032A: Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V
TPS2051B: Single, Current-Limited, Power-Distribution Switch
TLV431A: Low Voltage Adjustable Precision Shunt Regulator

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Product Information

Features

Four Operational Modes
- Torch and Flash up to I_LED = 1200 mA
- Voltage-Regulated Boost Converter: 4.5/5.0/5.25 V
- Shutdown: 0.3 µA (typ)
Total Solution Circuit Area < 25 mm²
Up to 96% Efficiency
I²C-Compatible Interface up to 400 kbps
Integrated LED Turn-On Safety Timer
Zero Latency TX-Masking Input (TPS61050)
Hardware Voltage Mode Selection Input (TPS61052)
Integrated ADC for LED V_F Monitoring
Integrated Low Light Dimming Mode
LED Disconnect During Shutdown
Open/Shorted LED Protection
Over-Temperature Protection
Available in a 12-Pin NanoFree™ (CSP) and 10-Pin QFN Packaging
APPLICATIONS
- Camera White LED Torch/Flash for Cell Phones, Smart-Phones and PDAs
- Audio Amplifier Power Supply

NanoFree, PowerPAD are trademarks of Texas Instruments.

Description

The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.

The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250 mV LED feedback voltage.

The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage (refer to TPS61052).

For highest flexibility, the LED current or the desired output voltage can be programmed via an I²C compatible interface. To simplify flash synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for fast LED turn-on time.

When the TPS6105x is not in use, it can be put into shutdown mode via the I²C-compatible interface, reducing the input current to 0.3 µA (typ). During shutdown, the LED pin is high impedance to avoid leakage current through the LED.

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
TPS61050DRCR	ACTIVE	-40 to 85	1.90 \| 100u	SON (DRC) \| 10	View	3000 \| LARGE T&R			Purchase Samples
TPS61050DRCRG4	ACTIVE	-40 to 85	1.90 \| 100u	SON (DRC) \| 10	View	3000 \| LARGE T&R		Purchase Samples
TPS61050DRCT	ACTIVE	-40 to 85	2.10 \| 100u	SON (DRC) \| 10	View	250 \| SMALL T&R
TPS61050DRCTG4	ACTIVE	-40 to 85	2.10 \| 100u	SON (DRC) \| 10	View	250 \| SMALL T&R
TPS61050YZGR	ACTIVE	-40 to 85	1.95 \| 100u	DSBGA (YZG) \| 12		3000 \| LARGE T&R	Purchase Samples
TPS61050YZGT	ACTIVE	-40 to 85	2.15 \| 100u	DSBGA (YZG) \| 12		250 \| SMALL T&R

* 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
TPS61050DRCR	As of 8:01 AM GMT, 10 Oct 2008			As of 8:01 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1*	>10k \| 27 Jan	6 Weeks	None Reported View Distributors
TPS61050DRCRG4	As of 8:01 AM GMT, 10 Oct 2008			As of 8:01 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1*	>10k \| 27 Jan	6 Weeks	None Reported View Distributors
TPS61050DRCT	As of 8:01 AM GMT, 10 Oct 2008			As of 8:01 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	9500*	>10k \| 22 Dec	6 Weeks	Americas	Avnet	250
					DigiKey	>1k
					Mouser Electronics	228
					Newark	331
				Asia	WPI	160
TPS61050DRCTG4	As of 8:01 AM GMT, 10 Oct 2008			As of 8:01 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	9500*	>10k \| 22 Dec	6 Weeks	None Reported View Distributors
TPS61050YZGR	As of 8:01 AM GMT, 10 Oct 2008			As of 8:01 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 1 Dec	20 Weeks	Asia	WPI	>1k
TPS61050YZGT	As of 8:01 AM GMT, 10 Oct 2008			As of 8:01 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 18 Dec	12 Weeks	Americas	Avnet	250
					DigiKey	>1k
					Mouser Electronics	244
					Newark	245
				Asia	WPI	117
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
TPS61050DRCR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61050DRCRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61050DRCT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61050DRCTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61050YZGR	Green (RoHS & no Sb/Br)	SnAgCu	Level-1-260C-UNLIM	View	View
TPS61050YZGT	Green (RoHS & no Sb/Br)	SnAgCu	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

Datasheets

Sync Boost Converter w/I2C Compatible Interface High Power LED White Driver (tps61050.pdf, 1516 KB)
12 Dec 2006 Download

Application Notes

Optimizing Transient Response of Internally Compensated DC-DC Converters (slva289.htm, 8 KB)
28 Jan 2008 Abstract
Minimizing Ringing at the Switch Node of a Boost Converter (slva255.htm, 8 KB)
15 Sep 2006 Abstract

View Application Notes for White LED Drivers

User Guides

TPS61050EVM-269 and TPS61052EVM-269 (Rev. B) (slvu215b.pdf, 819 KB)
29 Nov 2007 Download

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS61050 Evaluation Module	TPS61050EVM-215	Texas Instruments	Development Boards/EVMs
TPS61050 Evaluation Module	TPS61050EVM-269	Texas Instruments	Development Boards/EVMs
Software for TPS6105x Evaluation Modules	TPS6105XEVM-SW	Texas Instruments	Application Software
TPS61050EVM-215 Gerber Files(slvc121.zip, 137 KB ) 24 Sep 2007 zip

Alternative Products - Are similar to TPS61050
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS61160	White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package	TI customers also evaluated this product.
TPS61180	1.5A White LED Driver for Notebooks	TI customers also evaluated this product.
TPS75105	Low Dropout, Two-Bank LED Driver with PWM Brightness Control	TI customers also evaluated this product.
TPS61165	High Brightness White LED Driver in 2mm x 2mm QFN Package	TI customers also evaluated this product.
TPS61052	1.2A High Power White LED Driver with I2C Compatible Interface	TI customers also evaluated this product.
TPS61041	28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	TI customers also evaluated this product.
TPS61054	700mA High Power White LED Driver with standard Logic Interface	TI customers also evaluated this product.
TPS61055	500mA High Power White LED Driver with standard Logic Interface	TI customers also evaluated this product.
TPS61059	High Power Single Cell White LED Driver with 1.5A Switch, in 3x3 QFN	TI customers also evaluated this product.

Complementary Products - Can be used with TPS61050
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
BQ24032A	Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
TPS2051B	Single, Current-Limited, Power-Distribution Switch	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
TLV431A	Low Voltage Adjustable Precision Shunt Regulator	REFERENCES-SHUNT VOLTAGE REFERENCES	TI customers also evaluated this product.
BQ24070	Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.