TPS60252 Status: ACTIVE

High Efficiency Charge Pump for 7 WLEDs with I2C Interface

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Datasheet

High Efficiency Charge Pump for 7 WLEDs with I2C Interface (Rev. C) (PDF 900 KB)
23 Apr 2008

Functional Block Diagram

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	TPS60250	TPS60251	TPS60252	TPS60255
Topology	Boost	Boost	Boost	Boost
Type	Capacitive	Capacitive	Capacitive	Capacitive
Vin(Min)(V)	3	3	3	2.7
Vin(Max)(V)	6	6	6	6
Output Voltage(Max)(V)	6.5	6.5	6.5	6.6
Switching Frequency(Max)(kHz)	750	750	750	750
LED(#)	4+2+1	4+2+1	4+2+1	4+2+1
LED Configuration	Parallel	Parallel	Parallel	Parallel
Peak Efficiency(%)	93	93	93	93
Iq(Typ)(mA)	0.068	0.068	0.068	0.068
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Pin/Package	16QFN	24QFN	16QFN	16QFN
Iout(Max)(A)	0.23	0.23	0.23	0.23
I2C Address	1110111	1110111	1110110	EasyScale(TM)
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS60250: High Efficiency Charge Pump for 7 WLEDs with I2C Interface
TPS60255: 7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight
TPS61161A: White LED Driver with PWM Brightness Control in 2mm x 2mm Package. Up to 10 LEDs in Series
TPS51610: Single Phase D-CAP+™Mode Step Down Controller for IMVP6+ CPU/GPU Vcore
TPS73025: Single Output LDO, 200mA, Fixed(2.5V), High PSRR, Low Noise
TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter

More Related Products

Product Information

Features

3.0 V to 6.0 V Input Voltage Range
×1 and ×1.5 Charge Pump
Fully Programmable Current with I²C
- 64 Dimming Steps with 25mA Maximum (Sub and Main Display Banks)
- 4 Dimming Steps with 80mA Maximum (DM5 for Auxiliary Application)
2% Current Matching for Sub LEDs at Light Load Condition (Each 100µA)
750 kHz Charge Pump Frequency
Continuous 230mA Maximum Output Current
Auto Switching Between ×1 and ×1.5 Mode for Maximum Efficiency
Built-in Soft Start and Current Limit
Open Lamp Detection
16-Pin 3mm x 3mm QFN
TPS60250 (I²C Slave Address: 1110111)
TPS60252 (I²C Slave Address: 1110110)
APPLICATIONS
- Cellular Phones
- PDA, PMP, GPS (Up To 4 Inch LCD Display)
- Multidisplay Handheld Devices

Description

The TPS60250/2 are high efficiency, constant frequency charge pump DC/DC converters that use dual mode 1× and 1.5× conversions to maximize efficiency over the input voltage range. The devices drive up to five white LEDs for the main display and up to two white LEDs for the sub display with regulated constant current for uniform intensity. By utilizing adaptive 1×/1.5× charge pump modes and very low-dropout current regulators, the TPS60250/2 achieve high efficiency over the full 1-cell lithium-battery input voltage range.

Four enable inputs, ENmain, ENsub1, ENsub2, and ENaux, available through the I²C, are used for simple on/off controls for the independent main, sub1, sub2, and DM5 displays, respectively.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Package QTY \| Package Carrier	Samples
TPS60252RTER	ACTIVE	-40 to 85	1.40 \| 1ku	QFN (RTE) \| 16	3000 \| LARGE T&R	Purchase Samples
TPS60252RTERG4	ACTIVE	-40 to 85	1.40 \| 1ku	QFN (RTE) \| 16	3000 \| LARGE T&R	Purchase Samples
TPS60252RTET	ACTIVE	-40 to 85	1.55 \| 1ku	QFN (RTE) \| 16	250 \| SMALL T&R
TPS60252RTETG4	ACTIVE	-40 to 85	1.55 \| 1ku	QFN (RTE) \| 16	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

Reported Distributor Inventory as of 10:11 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS60252RTER
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS60252RTERG4
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksTPS60252RTET
Asia	Farnell Asia	250
Europe	Farnell	250
Worldwide	DigiKey	243
TI Lead Time*: 16 WeeksTPS60252RTETG4
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
TPS60252RTER	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View
TPS60252RTERG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View
TPS60252RTET	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View
TPS60252RTETG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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 TPS60252

Datasheet

High Efficiency Charge Pump for 7 WLEDs with I2C Interface (Rev. C) (PDF, 900 KB)
23 Apr 2008

Application Notes

Ballast Resistor Calculation – Current Matching in Parallel LEDs (HTM, 8 KB) 473 views
16 Apr 2009 Read Abstract
Extending Soft Start Time in TPS6107x Family of Boost (HTM, 8 KB) 2663 views
07 Aug 2008 Read Abstract

View Application Notes for White LED Drivers

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS60250	High Efficiency Charge Pump for 7 WLEDs with I2C Interface	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
TPS60255	7-Channel, High Efficiency 175-mA Charge Pump for White LED Backlight	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
TPS61161A	White LED Driver with PWM Brightness Control in 2mm x 2mm Package. Up to 10 LEDs in Series	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
TPS60251	High Efficiency Charge Pump for 7 WLEDs with I2C Interface	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
TPS61040	28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
TPS51610	Single Phase D-CAP+™Mode Step Down Controller for IMVP6+ CPU/GPU Vcore	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS73025	Single Output LDO, 200mA, Fixed(2.5V), High PSRR, Low Noise	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS54620	4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS54231	2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.

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TPS60252 Status: ACTIVE

High Efficiency Charge Pump for 7 WLEDs with I2C Interface

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Datasheet

Functional Block Diagram

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

Support and Community

Customer Tags

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