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AAT1164

Advanced Analog Technology
Part Number AAT1164
Manufacturer Advanced Analog Technology
Description TRIPLE-CHANNEL TFT LCD POWER SOLUTION
Published Jun 3, 2010
Detailed Description Advanced Analog Technology, Inc. April 2007 AAT1164/AAT1164B/AAT1164C Product information presented is current as of p...
Datasheet PDF File AAT1164 PDF File

AAT1164
AAT1164

Overview
Advanced Analog Technology, Inc.
April 2007 AAT1164/AAT1164B/AAT1164C Product information presented is current as of publication date.
Details are subject to change without notice.
TRIPLE-CHANNEL TFT LCD POWER SOLUTION WITH OPERATIONAL AMPLIFIERS FEATURES Built in 3A, 0.
2Ω Switching NMOS Positive LDO Driver Up to 28V/5mA www.
DataSheet4U.
com 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, under-voltage lockout protection and 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 (VOUT2 and VOUT3) set by external resistor dividers.
VGH voltage does not activate until DLY voltage exceeds 1.
25V.
The AAT1164/AAT1164B/AAT1164C contains 4+1 operational amplifiers.
VO1, VO2, VO4, and VO5 are for gamma corrections and VO3 is for VCOM.
In the short circuit condition, operational amplifiers are capable of sourcing ±100mA current for VGAMMA, and ±200mA current for VCOM.
With the minimal external components, the AAT1164/AAT1164B/AAT1164C offers a simple and economical solution for TFT LCD power.
Negative LDO Driver Down to –14V/5mA 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 1 VCOM and 4 VGAMMA Operational Amplifiers PIN CONFIGURATION – – Version 1.
00 Page 1 of 24 – Advanced Analog Technology, Inc.
– Advanced Analog Technology, Inc.
April 2007 AAT1164/AAT1164B/AAT1164C ORDERING INFORMATION DEVICE TYPE PART NUMBE...


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