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See Technical Specifications

TPS60250RTET +BOM

High efficiency charge pump for 7 WLEDs with I2C interface with 0x77 I2C slave address

Manufacturer:

Texas Instruments
Mfr.Part #:

TPS60250RTET
Datasheet:

TPS60250RTET Datasheet (PDF)
Series:

TPS60250
Mounting Style:

SMD/SMT
Number of Outputs:

7 Output
Output Current:

230 mA

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

TPS60250RTET General 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. To lower the operating current when using one sub display LED, the devices provide completely separate operation for the sub display LEDs.

The TPS60250/2 are available in a 16-pin 3mm x 3mm thin QFN.

Key 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

Specifications

Product Category	LED Lighting Drivers	Series	TPS60250
Mounting Style	SMD/SMT	Number of Outputs	7 Output
Output Current	230 mA	Input Voltage, Min	3 V
Input Voltage, Max	6 V	Topology	Charge Pump
Operating Frequency	750 kHz	Output Voltage	6.5 V
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Features	Charge Pump, I2C Control, Soft Start, Open LED Detection	Development Kit	TPS60250EVM-185
High Level Output Current	230 mA	Input Voltage	3 V to 6 V
Moisture Sensitive	Yes	Number of Channels	7 Channel
Output Type	Current Mode	Pd - Power Dissipation	821 mW
Product Type	LED Lighting Drivers	Factory Pack Quantity	250
Subcategory	Driver ICs	Supply Current - Max	6.7 mA
Type	Capacitive	Unit Weight	0.007055 oz