TPS65155 Texas instruments

TPS65155

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TPS65155

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Описание

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

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

Display type	LCD unipolar
IC integration	LCD bias, LCD level shifter
Vin (min) (V)	3
Vin (max) (V)	6
Applications	13 to 21 inches, 7 to 13 inches
Source driver voltage (min) (V)	7
Source driver voltage (max) (V)	18
Level shifter/scan driver (Ch)	6
Features	I2C interface, Level shifter, Output discharge, Reset generator, Temperature sensor or compensation
Topology	Boost
Rating	Catalog
Operating temperature range (°C)	-40 to 85