Datasheet4U Logo Datasheet4U.com

TPS65146 - Compact LCD Bias IC

📥 Download Datasheet

General Description

The TPS65146 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 3.3 V or 5 V supply rail.

The device integrates a step-up converter for VS (Source Driver voltage), a positive charge pump regulator for VGH (Gate Driver High voltage), a logic voltage rail using an integrated LDO and a VCOM buffer driving the LCD backplane.

In addition to that, a gate voltage shaping block is integrated for VGH, modulating the signal (into VGHM) with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin.

Overview

TPS65146 www.ti.com...................................................................................................................................................

Key Features

  • 1.
  • 2.5V to 6.0V Input Voltage Range.
  • Up to 16.5V Boost Converter With 2A Switch Current.
  • 650kHz/1.2MHz Selectable Switching Frequency.
  • Adjustable Soft-Start for the Boost Converter.
  • 500mA LDO.
  • Reset Function (XAO Signal).
  • Regulated VGH.
  • Gate Voltage Shaping.
  • VCOM Buffer.
  • LCD Discharge Function.
  • Overvoltage Protection.
  • Thermal Shutdown.
  • Undervoltage Lockout.
  • 24-Pin 4×4mm.

More Datasheets from Texas Instruments

Part Number Description
TPS65140 Triple Output LCD Supply
TPS65140-Q1 Triple Output LCD Supply
TPS65141 Triple Output LCD Supply
TPS65142 LCD Bias Power Integrated
TPS65145 Triple Output LCD Supply
TPS65145-Q1 Triple Output LCD Supply
TPS65148 Compact TFT LCD Bias IC
TPS65100 Triple Output LCD Supply
TPS65100-Q1 Triple-Output LCD Supply
TPS65101 Triple Output LCD Supply