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부품번호 | EL7641A 기능 |
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기능 | (EL7640A - EL7642A) TFT-LCD DC/DC | ||
제조업체 | Intersil Corporation | ||
로고 | |||
전체 19 페이지수
®
PRELIMINARY
Data Sheet
EL7640A, EL7641A, EL7642A
May 15, 2006
FN6270.0
TFT-LCD DC/DC with Integrated
Amplifiers
The EL7640A, EL7641A, and EL7642A integrate a high
performance boost regulator with 2 LDO controllers for VON
and VOFF, a VON-slice circuit with adjustable delay and
either one (EL7640A), three (EL7641A), or five amplifiers
(EL7642A) for VCOM and VGAMMA applications.
The boost converter in the EL7640A, EL7641A, and
EL7642A is a current mode PWM type integrating an 18V
NHchannel MOSFET. Operating at 1.2MHz, this boost can
operate in either P-mode for superior transient response, or
in PI-mode for tighter output regulation.
Using external low-cost transistors, the LDO controllers
provide tight regulation for VON, VOFF, as well as providing
start-up sequence control and fault protection.
The amplifiers are ideal for VCOM and VGAMMA
applications, with 150mA peak output current drive, 12MHz
bandwidth, and 12V/µs slew rate. All inputs and outputs are
rail-to-rail.
Available in the 32 Ld thin QFN (5mm x 5mm) Pb-free
packages, the EL7640A, EL7641A, and EL7642A are specified
www.DataSheet4U.com
for operation over the -40°C to +85°C temperature range.
Ordering Information
PART NUMBER PART TAPE & PACKAGE PKG.
(Note)
MARKING REEL (Pb-Free) DWG. #
EL7640AILTZ
7640AILTZ - 32 Ld 5x5 MDP0051
Thin QFN
EL7640AILTZ-T7 7640AILTZ 7” 32 Ld 5x5 MDP0051
Thin QFN
EL7640AILTZ-T13 7640AILTZ 13” 32 Ld 5x5 MDP0051
Thin QFN
EL7641AILTZ
7641AILTZ - 32 Ld 5x5 MDP0051
Thin QFN
EL7641AILTZ-T7 7641AILTZ 7” 32 Ld 5x5 MDP0051
Thin QFN
EL7641AILTZ-T13 7641AILTZ 13” 32 Ld 5x5 MDP0051
Thin QFN
EL7642AILTZ
7642AILTZ - 32 Ld 5x5 MDP0051
Thin QFN
EL7642AILTZ-T7 7642AILTZ 7” 32 Ld 5x5 MDP0051
Thin QFN
EL7642AILTZ-T13 7642AILTZ 13” 32 Ld 5x5 MDP0051
Thin QFN
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb
and Pb-free soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements
of IPC/JEDEC J STD-020.
Features
• Current mode boost regulator
- Fast transient response
- 1% accurate output voltage
- 18V/3A integrated FET
- >90% efficiency
• 2.6V to 5.5V VIN supply
• 2 LDO controllers for VON and VOFF
- 2% output regulation
- VON-slice circuit
• High speed amplifiers
- 150mA short-circuit output current
- 12V/µs slew rate
- 12MHz -3dB bandwidth
- Rail-to-rail inputs and outputs
• Built-in power sequencing
• Internal soft-start
• Multiple overload protection
• Thermal shutdown
• 32 Ld 5x5 thin QFN package
• Pb-free plus anneal available (RoHS compliant)
Applications
• TFT-LCD panels
• LCD monitors
• Notebooks
• LCD-TVs
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
EL7640A, EL7641A, EL7642A
Electrical Specifications VIN = 3V, VBOOST = VSUP = 12V, VSRC = 20V, Over temperature from -40°C to 85°C.
Unless Otherwise Specified. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP
OPERATIONAL AMPLIFIERS
VSUP
ISUP
VOS
IB
CMIR
Supply Operating Range
Supply Current per Amplifier
Offset Voltage
Input Bias Current
Common Mode Input Range
4.5
600
3
-50
0
CMRR
Common Mode Rejection Ratio
60 90
AOL
VOH
Open Loop Gain
Output Voltage High
IOUT = 100µA
VSUP
-15
110
VSUP
-2
IOUT = 5mA
VSUP VSUP
-250 -150
VOL
ISC
ICONT
PSRR
Output Voltage Low
Short-Circuit Current
Continuous Output Current
Power Supply Rejection Ratio
IOUT = -100µA
IOUT = -5mA
2
100
100 150
±50
60 100
BW-3dB
GBWP
-3dB Bandwidth
Gain Bandwidth Product
12
8
SR Slew Rate
12
POSITIVE LDO
VFBP
Positive Feedback Voltage
VFTP
VFBP Fault Trip Level
IBP Positive LDO Input Bias Current
∆VPOS/
∆IPOS
FBP Load Regulation
IDRVP
Sink Current
ILEAKP
DRVP Off Leakage Current
tSSP
Soft-Start Period
NEGATIVE LDO
IDRVP = 100µA, TA = 25°C
IDRVP = 100µA
VFBP falling
VFBP = 1.4V
VDRVP = 25V, IDRVP = 0 to 20µA
VFBP = 1.1V, VDRVP = 10V
VFBP = 1.4V, VDRVP = 30V
CDEL = 100nF
1.176
1.176
0.82
-50
1.2
1.2
0.9
0.5
24
0.1
7
VFBN
VFTN
IBN
IDRVN
ILEAKN
tSSN
FBN Regulation Voltage
VFBN Fault Trip Level
Negative LDO Input Bias Current
FBN Load Regulation
Source Current
DRVN Off Leakage Current
Soft-start Period
IDRVN = 0.2mA, TA = 25°C
IDRVN = 0.2mA
VFBN rising
VFBN = 250mV
VDRVN = -6V, IDRVN = 2µA to 20µA
VFBN = 500mV, VDRVN = -6V
VFBP = 1.35V, VDRVP = 30V
CDEL = 100nF
0.173
0.171
380
-50
2
0.203
0.203
430
0.5
4
0.1
7
MAX
18
800
12
+50
VSUP
30
150
1.224
1.229
0.98
50
10
0.233
0.235
480
50
10
UNIT
V
µA
mV
nA
V
dB
dB
mV
mV
mV
mV
mA
mA
dB
MHz
MHz
V/µs
V
V
V
nA
%
mA
µA
ms
V
V
mV
nA
%
mA
µA
ms
4 FN6270.0
May 15, 2006
4페이지 EL7640A, EL7641A, EL7642A
Typical Performance Curves
100
90
80
70
60
50
40
30
20
10
0
0
VIN=3V
VIN=5V
200 400 600 800 1000 1200
LOAD CURRENT (mA)
FIGURE 1. BOOST EFFICIENCY AT VOUT = 12V (PI MODE)
94
92
90
88
86
84 VIN=3V
VIN=5V
82
80
78
0 200 400 600 800 1000 1200
LOAD CURRENT (mA)
FIGURE 2. BOOST EFFICIENCY AT VOUT = 12V (P MODE)
0
-0.1 VIN=3V
-0.2
-0.3
-0.4 VIN=5V
-0.5
-0.6
0
200 400 600 800 1000 1200
LOAD CURRENT (mA)
FIGURE 3. BOOST LOAD REGULATION vs LOAD CURRENT
(PI MODE)
0
-2
-4
-6
-8
-10
-12
-14
0
VIN=5.0V
VIN=3.3V
200 400 600 800 1000 1200
LOAD CURRENT (mA)
FIGURE 4. BOOST LOAD REGULATION vs LOAD CURRENT
(P MODE)
0.12
0.1
0.08
0.06
0.04
0.02
0
3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
FIGURE 5. BOOST LINE REGULATION vs INPUT VOLTAGE
(PI MODE)
3.5
3
2.5
2
1.5
1
0.5
0
3
3.5 4
4.5 5
5.5
INPUT VOLTAGE (V)
6
FIGURE 6. BOOST LINE REGULATION vs INPUT VOLTAGE
(P MODE)
7 FN6270.0
May 15, 2006
7페이지 | |||
구 성 | 총 19 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
EL7641 | (EL7640 - EL7642) FT-LCD DC/DC | Intersil Corporation |
EL7641A | (EL7640A - EL7642A) TFT-LCD DC/DC | Intersil Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |