用于門陣列 (GOA) 面板的具有電平轉換器的 LCD 偏置解決方案
| Display type | LCD unipolar |
| IC integration | LCD bias, LCD level shifter |
| Vin (Min) (V) | 3 |
| Vin (Max) (V) | 6 |
| 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 |
- 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
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
