TPS65140-Q1 Series

4-CH LCD Bias w/ Fully Int. Pos. Charge Pump, 3.3V LDO Contr., 1.6A Min. Boost Ilim & Fault Detect

Catalog

4-CH LCD Bias w/ Fully Int. Pos. Charge Pump, 3.3V LDO Contr., 1.6A Min. Boost Ilim & Fault Detect

Part	Supplier Device Package	Current - Supply	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Grade	Qualification	Main Purpose	Frequency - Switching	Power - Output	Current - Output	Board Type	Voltage - Input [Min]	Voltage - Input [Max]	Outputs and Type	Outputs and Type	Utilized IC / Part	Regulator Topology	Voltage - Output	Supplied Contents	Package / Case [y]
Texas Instruments TPS65140PWPR	24-HTSSOP	700 µA	Surface Mount	2.7 V	5.8 V	0.173 in 4.4 mm	24-PowerTSSOP	85 °C	-40 °C	LCD Monitor Notebook Display
Texas Instruments TPS65140RGER	24-VQFN (4x4)	700 µA	Surface Mount	2.7 V	5.8 V		24-VFQFN Exposed Pad	85 °C	-40 °C	LCD Monitor Notebook Display
Texas Instruments TPS65140IPWPRQ1	24-HTSSOP	700 µA	Surface Mount	2.7 V	5.8 V	0.173 in 4.4 mm	24-PowerTSSOP	125 ¯C	-40 °C	LCD Monitor Notebook Display	Automotive	AEC-Q100
Texas Instruments TPS65140EVM-031													Special Purpose DC/DC LCD Supply	1.6 MHz	6.81 W	20 mA 300 mA 650 mA	Fully Populated	2.7 V	4 V	4	Non-Isolated	TPS65140	Buck	-5V 10V 23V 5V	Board(s)
Texas Instruments TPS65140PWPRG4	24-HTSSOP	700 µA	Surface Mount	2.7 V	5.8 V	0.173 in	24-TSSOP Exposed Pad	85 °C	-40 °C	LCD Monitor Notebook Display																4.4 mm
Texas Instruments TPS65140PWP	24-HTSSOP	700 µA	Surface Mount	2.7 V	5.8 V	0.173 in 4.4 mm	24-PowerTSSOP	85 °C	-40 °C	LCD Monitor Notebook Display

Catalog

4-CH LCD Bias w/ Fully Int. Pos. Charge Pump, 3.3V LDO Contr., 1.6A Min. Boost Ilim & Fault Detect

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1Device HBM ESD Classification Level H2Device CDM ESD Classification Level C5Input Voltage Range: 2.7 V to 5.8 VVO1 Boost ConverterUp to 15 V Output VoltageVirtual Synchronous Converter Topology< 1% Output Voltage Accuracy1.6-MHz Fixed Switching Frequency2.3-A Switch Current LimitVO2 Negative Regulated Charge PumpDown to -12 V / 20 mAVO3 Positive Regulated Charge PumpUp to 30 V / 20 mAThree Independently Adjustable OutputsAuxiliary 3.3-V Linear Regulator ControllerInternal Soft StartPower GoodProtection FeaturesShort-Circuit Detection of all OutputsOvervoltage Protection of all OutputsThermal ShutdownAvailable in TSSOP-24 PowerPAD™PackageQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1Device HBM ESD Classification Level H2Device CDM ESD Classification Level C5Input Voltage Range: 2.7 V to 5.8 VVO1 Boost ConverterUp to 15 V Output VoltageVirtual Synchronous Converter Topology< 1% Output Voltage Accuracy1.6-MHz Fixed Switching Frequency2.3-A Switch Current LimitVO2 Negative Regulated Charge PumpDown to -12 V / 20 mAVO3 Positive Regulated Charge PumpUp to 30 V / 20 mAThree Independently Adjustable OutputsAuxiliary 3.3-V Linear Regulator ControllerInternal Soft StartPower GoodProtection FeaturesShort-Circuit Detection of all OutputsOvervoltage Protection of all OutputsThermal ShutdownAvailable in TSSOP-24 PowerPAD™Package

Description

The TPS6514x series offers a compact and small power supply solution to provide all three voltages required by thin film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only. The main output VO1is a 1.6-MHz fixed frequency PWM boost converter providing the source drive voltage for the LCD display. The device is available in two versions with different internal switch current limits to allow the use of a smaller external inductor when lower output power is required. The TPS65140 and TPS65141 has a typical switch current limit of 2.3 A and the TPS65145 has a typical switch current limit of 1.37 A. A fully integrated adjustable charge pump doubler or tripler provides the positive LCD gate drive voltage. An externally adjustable negative charge pump provides the negative gate drive voltage. Due to the high 1.6-MHz switching frequency of the charge pumps, inexpensive and small 220-nF capacitors can be used. Additionally, the TPS6514x series has a system power good output to indicate when all supply rails are acceptable. For LCD panels powered by 5 V the device has a linear regulator controller using an external transistor to provide a regulated 3.3-V output for the digital circuits. For maximum safety, the TPS65140 and TPS65145 goes into shutdown as soon as one of the outputs is out of regulation. The device can be enabled again by toggling the input or the enable (EN) pin to GND. The TPS65141 does not enter shutdown when one of its outputs is below its power good threshold. The TPS6514x series offers a compact and small power supply solution to provide all three voltages required by thin film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only. The main output VO1is a 1.6-MHz fixed frequency PWM boost converter providing the source drive voltage for the LCD display. The device is available in two versions with different internal switch current limits to allow the use of a smaller external inductor when lower output power is required. The TPS65140 and TPS65141 has a typical switch current limit of 2.3 A and the TPS65145 has a typical switch current limit of 1.37 A. A fully integrated adjustable charge pump doubler or tripler provides the positive LCD gate drive voltage. An externally adjustable negative charge pump provides the negative gate drive voltage. Due to the high 1.6-MHz switching frequency of the charge pumps, inexpensive and small 220-nF capacitors can be used. Additionally, the TPS6514x series has a system power good output to indicate when all supply rails are acceptable. For LCD panels powered by 5 V the device has a linear regulator controller using an external transistor to provide a regulated 3.3-V output for the digital circuits. For maximum safety, the TPS65140 and TPS65145 goes into shutdown as soon as one of the outputs is out of regulation. The device can be enabled again by toggling the input or the enable (EN) pin to GND. The TPS65141 does not enter shutdown when one of its outputs is below its power good threshold.