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AAT1160 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1160
기능 Step Up Current Mode PWM Converter
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AAT1160 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Advanced Analog Technology, Inc.
AAT1160
Product information presented is current as of publication date. Details are subject to change without notice.
Step Up Current Mode PWM Converter with
4+1 Operational Amplifiers
Features
z Built in 1.6A, 0.23 Switching NMOS
z Fault and Thermal Protection
z Internal Soft-Start Function
z Selectable Frequency 600 kHz or 1.25MHz
z Low Dissipation Current :
Typical 1.6mA in Operation
z Four Channels VGAMMA with Output Current:
+30mA (MAX)
z One channel VCOM with Output Current:
+100mA (MAX)
z TSSOP-20 Package Available
Pin Configuration
(Top View)
SW 1
20 GND1
VDD
SHDN
2
3
19 GND
18 IN1
FREQ 4
17 EO
VDD1
CIN+
5 16 N.C
6 AAT1160 15 COUT
GI1 7
14 GO1
GI2 8
13 GO2
General Description
The AAT1160 is a step up current mode PWM
converter that provides a one-channel step-up PWM
controller, four Gamma buffers, and one VCOM
buffer. Internal soft-start function can efficiently
prevent inrush current when the power is on.
This PWM controller consists of an on-chip voltage
reference, error amplifier, current sense, pulse width
modulation controller, under-voltage lockout
protection, thermal detect, soft-start, and fault
protection circuits.
The AAT1160 contains 4+1 operational amplifiers:
GO1, GO2, GO3, and GO4 for gamma corrections
and COUT for VCOM .
VCOM and VGAMMA are designed to increase
driving capability for thin film transistor liquid
crystal display (TFT LCD). Each buffer is capable
of driving heavy load and offering fast current
loading ( VCOM : ± 100mA , and VGAMMA : ± 30mA ).
With minimal external components, the AAT1160
offers a simple and economical power management
solution for TFT LCD panels.
GI3 9
12 GO3
GI4 10
11 GO4
TSSOP-20 PACKAGE
––
Advanced Analog Technology, Inc.
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AAT1160 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
Advanced Analog Technology, Inc.
Electrical Characteristics, VDD= 3V, FREQ=GND, VDD1= 10V
AAT1160
Operating Power
PARAMETER
Input Supply Voltage Range
VDD Under Voltage Lockout
Quiescent Current
Shutdown Current
Thermal Shutdown
SYMBOL TEST CONDITION
VDD
VUVLO
Falling
Rising
I VDD
I SHDN
TSHDN
VIN1=1.3V, not switching
VIN1=1.1V, switching
VSHDN =GND
MIN
2.6
2.29
TYP
2.43
2.58
0.36
1.2
0.1
160
MAX UNIT
5.5 V
2.57 V
V
0.60 mA
5.0 mA
10.0 µA
οC
EA (Error Amplifier)
PARAMETER
SYMBOL TEST CONDITION
Feedback Voltage
Input Bias Current
VIN1
I B1
VIN1=1.265V
Feedback-Voltage Line
Regulation
VRI
Transconductance
Voltage Gain
g m I=5µA
AV
Fault Detect Trigger Voltage
MIN TYP MAX UNIT
1.247 1.265 1.283 V
0 40 nA
0.05 0.15 % /V
70 105 240 µA /V
1,500
V /V
0.98 1.02 1.06 V
Oscillator
PARAMETER
Oscillation Frequency
Maximum Duty Cycle
SYMBOL TEST CONDITION
f OSC
FREQ=GND
FREQ= VDD
D MAX
FREQ=GND
FREQ= VDD
MIN
500
900
79
TYP
600
1250
85
85
MAX UNIT
700 kHz
1500 kHz
92 %
%
––
Advanced Analog Technology, Inc.
Page 4 of 14
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AAT1160 전자부품, 판매, 대치품
www.DataSheet4U.com
Advanced Analog Technology, Inc.
Electrical Characteristics, VDD= 3V, FREQ=GND, VDD1= 10V
AAT1160
VCOM and Gamma Buffer Output Characteristics
PARAMETER SYMBOL
TEST CONDITIONS
Output Swing Low
Output Swing High
VOL2
VOH2
ICOUT =5mA ( VCOM Buffer)
VCIN+ =0V
IGO1~4 =10mA (Gamma Buffer)
VGI1~4 =1V
ICOUT = 5 mA ( VCOM Buffer)
VCIN+ =10V
IGO1~4 = 10 mA (Gamma
Buffer)
VGI1~4 =9V
Output Swing
(Gamma Buffer)
VOL3
VOH3
I GO1~4 =10mA, VGI1~4 =5V
I GO1~4 = 10 mA, VGI1~4 =5V
Output Swing ( VCOM )
Short Circuit Current
VOL3
VOH3
I SHORT
I COUT =50mA, VCIN+ =5V
I COUT = 50 mA, VCIN+ =5V
(Gamma Buffer)
( VCOM Buffer)
MIN TYP MAX UNIT
- 0.08 0.15
V
- 1.02 1.05
9.85 9.92 -
8.95 8.98 -
V
- 5.02 5.04
4.96 4.98 -
- 5.03 5.05
4.95 4.97 -
- ± 70 -
- ± 180 -
V
V
mA
mA
––
Advanced Analog Technology, Inc.
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