G2731RG1U-K 数字接口液晶显示偏置电源

GMT（致新） G2731RG1U-K TQFN5X5-40 数字接口液晶显示偏置电源

Digital Interface LCD Bias Power

General Description
The G2731 is multi-functional power solution for
TFT-LCD panels thin-film transistor (TFT) liquid crystal
displays (LCD) panels. And all channel outputs Voltage
and power sequence can be programmed by I2C
interface and integrated Multiple-Time Programmable
(MTP) non-volatile memory.
One current mode asynchronous boost converter is for
AVDD with isolation Switching MOS. The converter
power MOS and isolation switching MOS are option
selected by I2C register and MTP.
VGH and VGL are regulated by current mode boost
controller and current mode buck-boost controller.
G2731 also provides charge pump regulator function for
both VGH & VGL voltage. The regulator type is selected
by I2C register and MTP. Additional VSS charge pump
regulator for GOA circuit is within G2731.
One channel programmable op-amp is designed to
drive the VCOM with the capability of high current and
wide bandwidth.
Thermal compensation function according to VT pin
voltage is provided for VGH or VGL voltage selected by
I2C register and MTP. VCOM voltage with thermal
compensation is also optional by I2C and MTP setting.
The G2731 is available in a 40-pin TQFN (5mm x 5mm)
package.    

Features
Input Supply Range: 9.5V ~ 14V
Current Mode Boost Converter for AVDD
Programmable Switching Frequency
5.63V to 19V Programmable Output
Integrated 20V/5A 0.1 Switching N-MOSFET
Sync Buck Converter for VCORE
Programmable Switching Frequency
0.968V to 2.022V Programmable Output
Integrated 12V/2A 0.2 Switching MOSFET
Sync Buck Converter for VLOGIC
Fixed 750kHz Switching Frequency
Sync & Async Type Option
2.2V to 3.7V Programmable Output
Integrated 12V/2A 0.2 Switching MOSFET
Charge-Pump Regulator For VGH & option
External MOSFET Boost Controller
Fixed 750kHz Switching Frequency
Current Mode external switching MOSFET
Inverting Controller
Thermal Compensation
Charge-pump regulator for VGL & option
external MOSFET inverting controller
Fixed 750kHz Switching Frequency
Current mode external switching MOSFET
inverting controller
Thermal Compensation
Digital VCOM control setting
Thermal Compensation
Protection Function
Over-Current Protection (OCP)
Over-Temperature Protection (OTP)
Over-Voltage Protection (OVP)
Over-Current Protection (OCP)
Output Under Voltage Protection (UVP)
Short Circuit Protection (SCP)
2-Wire I2C Slave Mode Interface
Analog Switch for I2C
Available in TQFN5X5-40 Package

Applications
TV TFT LCD Displays