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See Technical Specifications

TPS65140IPWPRQ1

Automotive 2.7V to 5.8V, 4 Channel LCD Power Supply

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS65140IPWPRQ1
Datasheet:

TPS65140IPWPRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Applications:

LCD Monitor, Notebook Display
Current - Supply:

700µA
Voltage - Supply:

2.7V ~ 5.8V
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TPS65140IPWPRQ1 General Description

The TPS65140-Q1 and TPS65145-Q1 devices offer a compact and small power supply solution that provides 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, V_O1 is a 1.6-MHz fixed-frequency PWM boost converter providing the source-drive voltage for the LCD display. The TPS65140-Q1 device has a typical switch current limit of 2.3 A and the TPS65145-Q1 has a typical switch current limit of 1.37 A.

A fully integrated adjustable charge pump doubler and provides the positive LCD gate-drive voltage. An externally adjustable negative charge pump provides the negative LCD gate-drive voltage.

For compensation of the devices please refer to Application Note: How to Compensate with the TPS6510x and TPS6514x SLVA813.

Key Features

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C5
Input Voltage Range: 2.7 V to 5.8 V
V_O1 Boost Converter
- Up to 15 V Output Voltage
- Virtual Synchronous Converter Topology
- < 1% Output Voltage Accuracy
- 1.6-MHz Fixed Switching Frequency
- 2.3-A Switch Current Limit
V_O2 Negative Regulated Charge Pump
- Down to -12 V / 20 mA
V_O3 Positive Regulated Charge Pump
- Up to 30 V / 20 mA
Three Independently Adjustable Outputs
Auxiliary 3.3-V Linear Regulator Controller
Internal Soft Start
Power Good
Protection Features
- Short-Circuit Detection of all Outputs
- Overvoltage Protection of all Outputs
- Thermal Shutdown
Available in TSSOP-24 PowerPAD™Package

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Power Management - Specialized	Series	Automotive, AEC-Q100
Applications	LCD Monitor, Notebook Display	Current - Supply	700µA
Voltage - Supply	2.7V ~ 5.8V	Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount	Base Product Number	TPS65140