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ADP3041 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADP3041은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 ADP3041 자료 제공

부품번호 ADP3041 기능
기능 TFT LCD Panel Power Module
제조업체 Analog Devices
로고 Analog Devices 로고


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ADP3041 데이터시트, 핀배열, 회로
TFT LCD Panel Power Module
ADP3041
FEATURES
600 kHz PWM Frequency
Fully Integrated 1.5 A Power Switch
3% Output Regulation Accuracy
Simple Compensation
Small Inductor and MLC Capacitors
300 A Quiescent Supply Current
90% Efficiency
Undervoltage Lockout
5 Buffers
TSSOP 20-Lead Package
Pb-Free Part
APPLICATIONS
TFT LCD Bias Supplies
GENERAL DESCRIPTION
The ADP3041 is a fixed frequency, PWM step-up dc-to-dc
switching regulator with five buffers capable of 12 V boosted
output voltage in a TSSOP 20-lead package. It provides high
efficiency, low noise operation, and excellent dynamic response,
and is easy to use. The high switching frequency allows for small,
cost-saving, external inductive and capacitive components. The
ADP3041 operates in PWM current mode. The current limit
and the power switch are integrated completely on-chip.
Capable of operating from 2.5 V to 5.5 V input, the ADP3041
is ideal for thin-film transistor (TFT) liquid crystal display
(LCD) module applications, where local point-of-use power
regulation is required. Supporting output voltages down to 4.5 V,
the ADP3041 is ideal to generate today’s low voltage rails, pro-
viding the optimal solution in its class for delivering power
efficiently, responsively, and simply with minimal printed circuit
board area.
The ADP3041 integrates five buffers. Each buffer can deliver
35 mA output current and has rail-to-rail input and output
capability.
FUNCTIONAL BLOCK DIAGRAM
COMP
IN
REF
FB
ERROR
AMP
gm
BIAS
ADP3041
RAMP
GEN
F/F
RQ
S
COMPARATOR
DRIVER
SW
NC OSC
SD
SS
AVCC
VCMI
SOFT START
CURRENT
SENSE
AMPLIFIER
PGND
VCMO
G1I G1O
G2I G2O
G3I G3O
G4I G4O
AGND
REV. D
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.




ADP3041 pdf, 반도체, 판매, 대치품
ADP3041
ABSOLUTE MAXIMUM RATINGS*
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to + 6 V
Buffer Input Voltage . . . . . . . . . . . . . –0.5 V to AVCC + 0.5 V
SW Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 V
COMP Voltage . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +2.5 V
FB Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +1.3 V
SD Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
PGND to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 200 mV
Operating Ambient Temperature Range . . . . . –40°C to +85°C
Operating Junction Temperature Range . . . . –40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
JA 2-Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143°C/W
JA 4-Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112°C/W
Lead Temperature Range (Soldering 60 sec) . . . . . . . . . 300°C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods may affect device reliability.
PIN CONFIGURATION
SW 1
20 PGND
IN 2
19 AGND
SD 3
18 FB
NC 4
17 COMP
AVCC 5 ADP3041 16 SS
VCMI 6 TOP VIEW 15 VCMO
(Not to Scale)
G1I 7
14 G1O
G2I 8
13 G2O
G3I 9
12 G3O
G4I 10
11 G4O
NC = NO CONNECT
ORDERING GUIDE
PIN FUNCTION DESCRIPTIONS
Model
Temperature Voltage
Range
Output
Package
Option
ADP3041ARU –40°C to +85°C 4.5 V to 12 V TSSOP-20
ADP3041ARUZ* –40°C to +85°C 4.5 V to 12 V TSSOP-20
*Z = Pb-free part.
D1
L1
VIN
CIN
RSD
SW PGND
ADP3041
IN AGND
SD FB
NC COMP
AVCC
SS
R1
R2
RC CC
CSS
COUT
VCMI
VCMO
G1I G1O
G2I G2O
G3I G3O
G4I G4O
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Mnemonic
SW
IN
SD
NC
AVCC
VCMI
G1I
G2I
G3I
G4I
G4O
G3O
G2O
G1O
VCMO
SS
COMP
FB
AGND
PGND
Function
Switching Output
Main Power Supply Input
Shutdown Input
No Connection
Buffers Power Supply Input
VCOM Buffer Input
Gamma 1 Buffer Input
Gamma 2 Buffer Input
Gamma 3 Buffer Input
Gamma 4 Buffer Input
Gamma 4 Buffer Output
Gamma 3 Buffer Output
Gamma 2 Buffer Output
Gamma 1 Buffer Output
VCOM Buffer Output
Soft Start Capacitor Timer Set
Compensation Input
Feedback Voltage Sense Input
Analog Signal Ground
Ground Return for Power Transistor
Figure 1. Typical Application
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADP3041 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
–4– REV. D

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ADP3041 전자부품, 판매, 대치품
10
5
1k
0 10k
–5
TA = 25؇C
–10 VS = ؎8V
VIN = 50mV rms
–15 CL = 40pF
AV = +1
–20
560
150
–25
–30
–35
–40
100k
1M 10M
FREQUENCY (Hz)
100M
TPC 13. Resistive Loading vs. Frequency Response
25
TA = 25؇C
20 VS = ؎8V
VIN = 50mV rms
15 RL = 10k
AV = +1
10
5
50pF
0
–5
–10
1040pF
100pF
–15
–20 540pF
–25
100k
1M 10M
FREQUENCY (Hz)
100M
TPC 14. Capacitive Loading vs. Frequency Response
500
450
400
350
300 VS = 4.5V
250
200
150
100
50 VS = 16V
0
100
1k
10k 100k 1M 10M
FREQUENCY (Hz)
TPC 15. Closed-Loop Output Impedance vs. Frequency
ADP3041
18
16
TA = 25؇C
14 VS = 16V
AV = +1
12 RL = 10k
DISTORTION < 1%
10
8
6
4
2
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
TPC 16. Closed-Loop Output Swing vs. Frequency
160
140
TA = 25؇C
VS = 16V
120
100
80
+PSRR
60
40
؊PSRR
20
0
–20
–40
100
1k
10k 100k 1M 10M
FREQUENCY (Hz)
TPC 17. Power Supply Rejection Ratio vs. Frequency,
VS = 16 V
160
140
TA = 25؇C
VS = 4.5V
120
100
+PSRR
80
60 ؊PSRR
40
20
0
–20
–40
100
1k
10k 100k 1M 10M
FREQUENCY (Hz)
TPC 18. Power Supply Rejection Ratio vs. Frequency,
VS = 4.5 V
REV. D
–7–

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관련 데이터시트

부품번호상세설명 및 기능제조사
ADP3041

TFT LCD Panel Power Module

Analog Devices
Analog Devices

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