THV6531

Summary

The THV6531 is the controller IC power supply system with boost converter and 2-channel charge pump circuit. The positive and negative charge pumps provide regulated TFT LCD gate-on and gate-off supplies. The chip includes a VCOM buffer and a gate slop circuit. Soft start / Over current protection / Under voltage protection / Thermal shut down are built in. Mounted area is reducible by 24-pin QFN.

Features

  • Input voltage range : 2.5V to 5.5V
  • Boost converter
    Maximum output voltage : 18V
    Switching limit current : 2.5A
    Feedback voltage accuracy : +/-1.5%
    Switching frequency : 1.2MHz
  • Positive charge pump
    Feedback voltage accuracy : +/-1.5%
    Switching frequency : 600kHz
  • Negative charge pump
    Feedback voltage accuracy : +/-5%
    Switching frequency : 600kHz
  • Operational amplifier
    Out put short-circuit current : +/-200mA
  • Gate Slop
  • Detector
  • Protection circuit
    Soft start
    Over current protection
    Under voltage protection
    Thermal shut down
  • 4mm x 4mm QFN 24pin Package

Block Diagram

Related Products

PMIC (Power IC)
THV Series of Power Management IC