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1 Features

1? 3-V to 6-V Input Voltage Range

? Boost Converter With 4-A Switch Current Limit

? Boost Converter Output Voltages up to 18 V

? Boost Converter Overvoltage Protection

? Selectable Switching Frequency (640 kHz or 1.2

MHz)

? Programmable Boost Converter Soft-Start

? Temperature-Compensated Positive Charge

Pump Controller

? Negative Charge Pump Controller

? 4 + 2 Channels of Level Shifters

? XAO Reset Signal

? Thermal Shutdown

? 40-Pin 5×5 mm QFN Package

2 Applications

? LCD Monitors or Notebook Panels

3 Description

The TPS65155 provides an integrated bias and level

shifter solution for LCD monitors .

The device integrates a boost converter to generate

the source driver supply voltage (VAVDD), positive and

negative charge pump controllers to generate gate

driver ON (VGH) and OFF (VGL) voltages, and an 6-

channel level shifter in a single IC. The positive

charge pump controller supports temperature

compensation to reduce VGH at high temperatures.

In addition to the above functions, the TPS65155

generates an additional active-low XAO reset output.

Supply sequencing during power-up can be controlled

by an externally generated enable signal.

To request a full data sheet or other design

resources: request TPS65155