1FEATURES

· 10-Channel Level Shifter, Organized as Two

Groups of 8 + 2 Channels

· Separate Positive Supplies (VGH) for Each

Group

· VGH Levels up to 38V

· VGL Levels down to –13V

· Logic Level Inputs

· High Peak Output Currents

· High-Speed VCOM Buffer

· 28-Pin 5x5 mm QFN Package

APPLICATIONS

· Large Format LCD Displays using GIP

Technology

DESCRIPTION

The TPS65190 is a combined multi-channel

level-shifter and VCOM buffer intended for use in large

format LCD display applications such as TVs and

monitors. The device converts the logic-level signals

generated by the Timing Controller (T-CON) to the

high-level gate drive signals used by the display

panel and amplifies/buffers an externally generated

VCOM voltage.

The 10 level shifter channels are organized as 2

groups, each with its own positive supply. Channels

1-6 and 9-10 are supplied by VGH1 and channels 7-8

are supplied by VGH2. The two positive supplies can

be tied together if one positive supply voltage is used

for all level shifter channels. Both level shifter groups

use the same negative supply VGL.

The level-shifters feature low impedance output

stages that achieve fast rise and fall times even when

driving significant capacitive loads.

The uncommitted high-speed operational amplifier

features a high slew rate and high peak current

capability that make it particularly suitable for driving the panel’s common rail (VCOM).