描述 Description

The FP6783 is an integrated power supply solution optimized for medium to large size thin-film transistor (TFT) liquid crystal displays (LCD’s).The boost converter operates at a frequency of 1.2MHz. The integrated N-channel FET has a typical current limit of 4.5A and can support output voltage up to 18V. A positive charge pump with an integrated driver can produce up to 36V of positive gate drive. The GPM is a flicker compensation circuit to reduce the coupling effect of gate lines; the gate-shaping timing is controlled by the timing-controller to modulate the Gate-On voltage, VGHM. It also can delay the Gate-On voltage during power-on to achieve a correct power-on delay time and the falling time of the Gate-On voltage are programmable by external capacitor and resistor. The FP6783 is available in a thin 20-pin 5x5 mm TQFN green package.

特性 Features

● 2.5V to 5.5V Input Supply
● 1.2MHz Switching Frequency
● Current-Mode Boost Regulator
??-- Integrated 18V/4.5A FET
? -- Fast Transient Response to Pulsed Load
? -- High Efficiency
● GPM Controller with Adjustable Falling Time
? -- Flicker Compensator
? -- Power-on Sequence Control
● Over-Temperature Protection
● Over-Current Protection
● Over-Voltage Protection
● Under-Voltage Protection
● Charge Pump for VGH Regulation
● Charge Pump for VGL Regulation
● TQFN-20 Exposed Pad Package
● ROHS Compliant

應(yīng)用 Application

● TFT LCD for Notebook
● TFT LCD for Monitor
● TFT LCD for TV