AAT1164C Advanced Analog Technology, AAT1164C Datasheet
![no-image](/images/no-image-200.jpg)
AAT1164C
Manufacturer Part Number
AAT1164C
Description
TRIPLE-CHANNEL TFT LCD POWER SOLUTION
Manufacturer
Advanced Analog Technology
Datasheet
1.AAT1164.pdf
(24 pages)
FEATURES
PIN CONFIGURATION
Product information presented is current as of publication date. Details are subject to change without notice.
Built in 3A, 0.2
Positive LDO Driver Up to 28V/5mA
Negative LDO Driver Down to –14V/5mA
1 V
28V High Voltage Switch for VGH
Internal Soft-Start Function
1.2MHz Fixed Switching Frequency
3 Channels Fault and Thermal Protection
Low Dissipation Current
QFN-32 Package Available
COM
and 4 V
TRIPLE-CHANNEL TFT LCD POWER SOLUTION
GAMMA
Advanced Analog Technology, Inc.
Switching NMOS
Operational Amplifiers
–
–
Advanced Analog Technology, Inc. –
台 灣 類 比 科 技 股 份 有 限 公 司
WITH OPERATIONAL AMPLIFIERS
Version 1.00
Page 1 of 24
GENERAL DESCRIPTION
The AAT1164/AAT1164B/AAT1164C is a triple-channel
TFT LCD power solution that provides a step-up PWM
controller, two high voltage LDO drivers (one for positive
voltage and one for negative voltage), five operational
amplifiers, and one high voltage switch up to 28V for
TFT LCD display.
The PWM controller consists of an on-chip voltage
reference, oscillator, error amplifier, current sense circuit,
comparator,
internal soft-start circuit. The thermal and power fault
protection prevents internal circuit being damaged by
excessive power.
The high voltage LDO drivers generate two regulated
output voltage (V
dividers. VGH voltage does not activate until DLY voltage
exceeds 1.25V.
The
operational amplifiers. VO1, VO2, VO4, and VO5 are for
gamma corrections and VO3 is for V
circuit condition, operational amplifiers are capable of
sourcing ±100mA current for V
current for V
With the minimal external components, the
AAT1164/AAT1164B/AAT1164C offers a simple and
economical solution for TFT LCD power.
AAT1164/AAT1164B/AAT1164C
AAT1164/AAT1164B/AAT1164C
–
COM
under-voltage
.
OUT2
and V
OUT3
lockout
) set by external resistor
GAMMA
COM
protection
, and ±200mA
contains
. In the short
April 2007
4+1
and