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AAT1101 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1101
기능 TRIPLE OUTPUT TFT LCD PWM CONTROLLER
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AAT1101 데이터시트, 핀배열, 회로
Advanced Analog Technology, Inc.
AAT1101 Series
Details are subject to change without notice
TRIPLE OUTPUT TFT LCD PWM CONTROLLER
Features
www.DataShzeet4UC.coommplete PWM Power Control Circuitry
z Precision Reference: 1.25V±1% (25 o C )
z Low Operating Voltage: 2.5V to 6.5V
z Under-Voltage Lockout Protection
z 5V or 3.3V Selectable Over Voltage
Lockout Protection (AAT1101/A only)
AAT1101/AAT1101A/AAT1101C: 500kHz Fixed
AAT1101B: 50k~1MHz Programmable
z Internal Power Up Sequence Control
z Totem Pole Output
z Output Short Circuit Protection
z Low Dissipation Current: 2.5mA
(f=500kHz, Duty=50%)
Pin Configuration
TOP VIEW
IE2
PRDB
VDD
1
2
3
OUT2
OUT3
4
5
16 SHDN
15 IE3
14 IE1
13 EO 1
12 PRDS
OUT1 6
GND
SCP
7
8
11 CHC
10 OVS (OSC) (NC)
9 VREF
(TSSOP-16 PACKAGE)
General Description
The AAT1101 series provide an integrated
triple-channel pulse width modulation (PWM) solution
for the power supply of LCD displays. These devices
offer system engineers the flexibility to tailor-make the
power supply circuitry for specific applications. Each
channel contains its own error amplifier, PWM
comparator, dead–time control (DTC) and output driver.
The under-voltage protection, over voltage protection,
power sequence control, shutdown control circuit,
oscillator, short circuit protection, and voltage reference
circuits are the common features of the three channels.
The AAT1101 series contain two exclusive boost
circuits at CH1, CH3 and an exclusive buck_boost
circuit at CH2. AAT1101’s Power Up sequence initiates
at CH1 then CH2 and finally CH3. AAT1101A/C’s
Power Up sequence acts in the order of CH2, CH3, and
then CH1. AAT1101B’s Power Up sequence starts
from CH2, CH1, and then CH3. At the completion of
the Power Up sequencing, the SCP pin stays low and
enters the Wait State of short circuit protection. Power
Up sequencing delay and short circuit protection delay
are set by connecting a capacitor to the SCP pin.
Furthermore, these devices can operate with supply
voltage ranging from 2.5V to 6.5V and function
efficiently in an environment with low power supply.
With a minimum number of external components, the
AAT1101 series offer a simple and cost effective
solution for TFT LCD.
––
Advanced Analog Technology, Inc.
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AAT1101 pdf, 반도체, 판매, 대치품
Advanced Analog Technology, Inc.
AAT1101 Series
Electrical Characteristics, VDD = 3.3V (Unless Otherwise Specified) (See Note 1)
Oscillator AAT1101/AAT1101A/AAT1101C
Parameter
Frequency
Frequency Changes with TC
www.DataSheetM4Ua.cxoimmum Duty Cycle
Test Condition
f OSC TC = 25 oC
f T
Txon
Min Typ Max Unit
400 500 600 kHz
- 5 10 %
70 85 95 %
Oscillator AAT1101B only
Parameter
Frequency
“H” Level Output Voltage
“L” Level Output Voltage
Frequency Change with
VDD
Frequency Changes with TC
Output Source Current
f OSC
VOSCH
VOSCL
f V
f T
I OSC
Test Condition
COSC = 130pf,
R OSC = 7 k
COSC = 130pf,
R OSC = 7 k
COSC = 130pf,
R OSC = 7 k
VDD = 2.5V to 6.5V,
TC = 25 oC
COSC = 130pf,
R OSC = 7 k
-
-
Min Typ Max Unit
400 500 600 kHz
0.95 1.00 1.05 V
0.35 0.40 0.45 V
- 1 2%
- 5 10 %
220 200 180 µA
––
Advanced Analog Technology, Inc.
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AAT1101 전자부품, 판매, 대치품
Advanced Analog Technology, Inc.
AAT1101 Series
Electrical Characteristics, VDD = 3.3V (Unless Otherwise Specified) (Cont.)
Power-Up Sequence Delay (for AAT1101A/AAT1101C)
Parameter
Test Condition
( )www.DataSheetU4Un.cdoemr Voltage Power Ready t PRA t PR = 3.2 × 105 CPRDS
Under Voltage CH2 Output
CH2 Output CH3 Output
t PRA
t CH2A t CH2 =(19531.25)CSCP
Min
-
-
-
Typ
t PRA
t PRA
t CH2A
Max Unit
-s
-s
-s
CH3 Output CH1 Output
t CH3A
- 0.8 t CH2A
-s
CH1 Output CHC Set High
CH1 Output
SCP Ready to Protect
SCP Enable Time
t CH1A
t CH1A
t SCPA
- 0.8 t CH2A -
- 0.8 t CH2A -
- 32 t CH2A -
s
s
s
Power-Up Sequence Delay (for AAT1101B)
Parameter
Test Condition
( )Under Voltage Power Ready t PRB t PR = 3.2 ×105 CPRDS
Under Voltage CH2 Output t PRB
CH2 Output CH1 Output
t CH2B t CH2 =(19531.25)CSCP
Min
-
-
-
Typ
t PRB
t PRB
tCH2B
Max Unit
-s
-s
-s
CH1 Output CH3 Output
t CH3B
- 0.8 t CH2B -
s
CH3 Output CHC Set Hi
CH3 Output SCP
Ready to Protect
SCP Enable Time
t CH1B
t CH1B
t SCPB
- 0.8 t CH2B -
- 0.8 t CH2B -
- 32 t CH2B -
s
s
s
––
Advanced Analog Technology, Inc.
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관련 데이터시트

부품번호상세설명 및 기능제조사
AAT1100

TRIPLE-CHANNEL PWM CONTROLLER

Advanced Analogic Technologies
Advanced Analogic Technologies
AAT1101

TRIPLE OUTPUT TFT LCD PWM CONTROLLER

Advanced Analogic Technologies
Advanced Analogic Technologies

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