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PWM Converter. AAT1160 Datasheet

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PWM Converter. AAT1160 Datasheet
















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Part

AAT1160

Description

Step Up Current Mode PWM Converter



Feature


www.DataSheet4U.com Advanced Analog Tec hnology, Inc. AAT1160 Product informati on presented is current as of publicati on date. Details are subject to change without notice. Step Up Current Mode P WM Converter with 4+1 Operational Ampli fiers Features z z z z z z z z Built in 1.6A, 0.23£[ Switching NMOS Fault and Thermal Protection Internal Soft-Start Function Selectabl.
Manufacture

AAT

Datasheet
Download AAT1160 Datasheet


AAT AAT1160

AAT1160; e Frequency¡G 600 kHz or 1.25MHz Low Di ssipation Current : Typical 1.6mA in Op eration Four Channels VGAMMA with Outpu t Current: +30mA (MAX) One channel VCOM with Output Current: +100mA (MAX) TSSO P-20 Package Available General Descrip tion The AAT1160 is a step up current m ode PWM converter that provides a one-c hannel step-up PWM controller, four Gam ma buffers, and one.


AAT AAT1160

VCOM buffer. Internal soft-start functi on can efficiently prevent inrush curre nt when the power is on. This PWM contr oller consists of an on-chip voltage re ference, error amplifier, current sense , pulse width modulation controller, un der-voltage lockout protection, thermal detect, soft-start, and fault protecti on circuits. The AAT1160 contains 4+1 o perational amplifi.


AAT AAT1160

ers: GO1, GO2, GO3, and GO4 for gamma co rrections and COUT for VCOM . 20 GND1 1 9 18 17 16 GND IN1 EO N.C Pin Configur ation (Top View) SW VDD 1 2 3 4 5 6 7 8 9 10 VCOM and VGAMMA are designed t o increase driving capability for thin film transistor liquid crystal display (TFT LCD). Each buffer is capable of d riving heavy load and offering fast cur rent loading ( VCO.




Part

AAT1160

Description

Step Up Current Mode PWM Converter



Feature


www.DataSheet4U.com Advanced Analog Tec hnology, Inc. AAT1160 Product informati on presented is current as of publicati on date. Details are subject to change without notice. Step Up Current Mode P WM Converter with 4+1 Operational Ampli fiers Features z z z z z z z z Built in 1.6A, 0.23£[ Switching NMOS Fault and Thermal Protection Internal Soft-Start Function Selectabl.
Manufacture

AAT

Datasheet
Download AAT1160 Datasheet




 AAT1160
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.
Page 1 of 14
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 AAT1160
www.DataSheet4U.com
Advanced Analog Technology, Inc.
Pin Description
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
NAME I/O
DESCRIPTION
SW
VDD
SHDN
FREQ
VDD1
CIN+
GI1
GI2
GI3
GI4
GO4
GO3
GO2
GO1
COUT
N.C
EO
IN1
GND
GND1
O High Voltage Switch Output
- Power Supply
I Shutdown Control Pin; High for Enable
I Frequency Select Pin
- High Voltage Power Supply
I VCOM Buffer Input
I Gamma Buffer 1 Input
I Gamma Buffer 2 Input
I Gamma Buffer 3 Input
I Gamma Buffer 4 Input
O Gamma Buffer 4 Output
O Gamma Buffer 3 Output
O Gamma Buffer 2 Output
O Gamma Buffer 1 Output
O VCOM Buffer Output
-
O PWM Error Amplifier Output Pin
I Inverting Input Pin of PWM Error Amplifier
- Ground
- Ground
AAT1160
––
Advanced Analog Technology, Inc.
Page 2 of 14
V 1.0




 AAT1160
www.DataSheet4U.com
Advanced Analog Technology, Inc.
Absolute Maximum Ratings
PARAMETER
VDD to GND
SW to GND
VDD1 to GND
Input Voltage 1 (IN1, SHDN, FREQ)
Input Voltage 2 (CIN+, CI1, CI2, GI3, GI4)
Output Voltage 1 (EO)
Output Voltage 2 (COUT, GO1, GO2, GO3,
GO4, SW)
Operating Free-Air Temperature Range
Storage Temperature Range
Power Dissipation
SYMBOL
VDD
VSW
VDD1
VI1
VI2
VO1
VO2
TC
TDD1
Pd
VALUE
7
18
14
VDD +0.3
VDD1 +0.3
VDD +0.3
VDD1 +0.3
20 to + 85
45 to + 125
700
AAT1160
UNIT
V
V
V
V
V
V
V
οC
οC
mW
––
Advanced Analog Technology, Inc.
Page 3 of 14
V 1.0




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