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.

• 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
• VO1 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
• VO2 Negative Regulated Charge Pump
  • Down to -12 V / 20 mA
• VO3 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

• Display type
• Automotive, LCD unipolar
• IC integration
• LCD bias
• Vin (Min) (V)
• 2.7
• Vin (Max) (V)
• 5.8
• Source driver voltage (Min) (V)
• 5
• Source driver voltage (Max) (V)
• 15
• Level shifter/scan driver (ch)
• 0
• V_POS (Max) (V)
• 30
• V_NEG (Max) (V)
• -2
• Topology
• Boost
• Rating
• Automotive

TPS65140-Q1的完整型号有：TPS65140IPWPRQ1，以下是这些产品的关键参数及官网采购报价：

TPS65140IPWPRQ1，工作温度：-40 to 85，封装：HTSSOP (PWP)-24，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS65140IPWPRQ1的批量USD价格：1.387（1000+）

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The TPS65140EVM-031 is an evaluation tool for the TPS6514x multi-channel power supply for TFT LCD displays. The evaluation module can accept input voltages in range of 2.7V to 5.8V and supplies 10V, -5V and 23V to power a TFT display. Other voltages can be adjusted by changing resistor feedback (...)

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