TPS60252 Series

High efficiency charge pump for 7 WLEDs with I2C interface with 0x76 I2C slave address

Catalog

High efficiency charge pump for 7 WLEDs with I2C interface with 0x76 I2C slave address

Part	Supplier Device Package	Type	Voltage - Supply (Min) [Min]	Topology	Internal Switch(s)	Frequency	Voltage - Supply (Max) [Max]	Voltage - Output	Package / Case	Applications	Current - Output / Channel [custom]	Number of Outputs	Dimming	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type
Texas Instruments TPS60252RTER	16-WQFN (3x3)	DC DC Regulator	3 V	Switched Capacitor (Charge Pump)		750 kHz	6 V	6.5 V	16-WFQFN Exposed Pad	Backlight	230 mA	7	I2C	85 °C	-40 °C	Surface Mount

Catalog

High efficiency charge pump for 7 WLEDs with I2C interface with 0x76 I2C slave address

Key Features

• 3.0 V to 6.0 V Input Voltage Range×1 and ×1.5 Charge PumpFully Programmable Current with I2C64 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 FrequencyContinuous 230mA Maximum Output CurrentAuto Switching Between ×1 and ×1.5 Mode for Maximum EfficiencyBuilt-in Soft Start and Current LimitOpen Lamp Detection16-Pin 3mm x 3mm QFNTPS60250 (I2C Slave Address: 1110111)TPS60252 (I2C Slave Address: 1110110)APPLICATIONSCellular PhonesPDA, PMP, GPS (Up To 4 Inch LCD Display)Multidisplay Handheld Devices3.0 V to 6.0 V Input Voltage Range×1 and ×1.5 Charge PumpFully Programmable Current with I2C64 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 FrequencyContinuous 230mA Maximum Output CurrentAuto Switching Between ×1 and ×1.5 Mode for Maximum EfficiencyBuilt-in Soft Start and Current LimitOpen Lamp Detection16-Pin 3mm x 3mm QFNTPS60250 (I2C Slave Address: 1110111)TPS60252 (I2C Slave Address: 1110110)APPLICATIONSCellular PhonesPDA, 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. 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. 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.