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부품번호 | AAT1164C 기능 |
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기능 | TRIPLE-CHANNEL TFT LCD POWER SOLUTION | ||
제조업체 | Advanced Analog Technology | ||
로고 | |||
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
Negative LDO Driver Down to –14V/5mA
1 VCOM and 4 VGAMMA Operational Amplifiers
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
PIN CONFIGURATION
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.
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Version 1.00
Page 1 of 24
Advanced Analog Technology, Inc.
April 2007
AAT1164/AAT1164B/AAT1164C
ELECTRICAL CHARACTERISTICS
(VDD = 2.6V to 5.5V, TC = –40 ° C to 85 ° C , unless otherwise specified. Typical values are tested at 25 ° C ambient
temperature, VDD = 3.3V, VDD1 = 10V.)
PARAMETER
VDD Input Voltage Range
VDD1 Input Voltage Range
www.DataSheet4U.com
VDD Under Voltage Lockout
VDD Operating Current
VDD1 Operating Current
Thermal Shutdown
SYMBOL
TEST CONDITION
MIN TYP MAX UNIT
VDD
VDD1
AAT1164/AAT1164B
AAT1164C
2.6
8
8
5.5 V
13 V
14 V
VUVLO
Falling
Rising
2.1 2.2 2.3
2.3 2.4 2.5
V
V
IVDD
IVDD1
TSHDN
VIN1 = 1.5V, Not Switching
VIN1 = 1.0V, Switching
VVI1+~VVI5+ = 4V
0.56 0.80 mA
5.6 10.0 mA
7 10 mA
160 C
Reference Voltage
PARAMETER
Reference Voltage
Line Regulation
Load Regulation
SYMBOL
VREF
TEST CONDITION
IVREF = 100µA
IVREF = 100µA,
VDD = 2.6V~5.5V
IVREF = 0~100µA
MIN TYP MAX UNIT
1.231 1.250 1.269 V
- 2 5 %/mV
- 1 5 %/mA
Oscillator
PARAMETER
Oscillation Frequency
Maximum Duty Cycle
SYMBOL
fOSC
DMAX
TEST CONDITION
MIN
1.05
84
TYP
1.20
87
MAX
1.35
90
UNIT
MHz
%
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Version 1.00
Page 4 of 24
4페이지 Advanced Analog Technology, Inc.
April 2007
AAT1164/AAT1164B/AAT1164C
ELECTRICAL CHARACTERISTICS
(VDD = 2.6V to 5.5V, TC = –40 ° C to 85 ° C , unless otherwise specified. Typical values are tested at 25 ° C ambient
temperature, VDD = 3.3V, VDD1 = 10V.)
VCOM and VGAMMA Buffer
PARAMETER
Input Offset Voltage
Input Bias Current
www.DataSheet4U.com
SYMBOL
VOS
IB5
TEST CONDITIONS
VVI1+ ~ VVI5+ = 4V
VVI1+ ~ VVI5+ = 4V
IVO1, IVO2, IVO4, IVO5 =
5mA,
VOL
VVI1, VVI2, VVI4, VVI5 = 0V,
4V,10V
MIN TYP MAX UNIT
- 2 12 mV
−40 0
40 nA
-
-
VVI–
+0.15
Output Swing
Short Circuit Current
Slew Rate
VOH
ISHORT
SR
IVO3 = 50mA, VVI3 = 4V
IVO1, IVO2, IVO4, IVO5 =
–50mA,
VVI1, VVI2, VVI4, VVI5 = 0V,
4V, 10V
IVO3 = –50mA, VVI3 = 4V
IVO1, IVO2, IVO4, IVO5
IVO3
VVI1+, VVI3+ = 2V to 8V,
VVI3+ ~ VVI5+ = 8V to 2V,
20% to 80%
- 4.03 4.06
VVI–
−0.15
-
-
V
3.94 3.97
-
- ±100 - mA
- ±200 - mA
- 12 - V/ µs
Settling Time
tS
VVI1+ ~ VVI5+ = 3.5V to 4.5V,
90%
-
5
- µs
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Version 1.00
Page 7 of 24
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부품번호 | 상세설명 및 기능 | 제조사 |
AAT1164 | TRIPLE-CHANNEL TFT LCD POWER SOLUTION | Advanced Analog Technology |
AAT1164B | TRIPLE-CHANNEL TFT LCD POWER SOLUTION | Advanced Analog Technology |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |