參數(shù)資料
型號: MAX1518B
廠商: Maxim Integrated Products, Inc.
元件分類: DC/DC變換器
英文描述: TFT-LCD DC-DC Converter with Operational Amplifiers
中文描述: TFT-LCD DC-DC轉(zhuǎn)換器,帶有運算放大器
文件頁數(shù): 1/25頁
文件大?。?/td> 1308K
代理商: MAX1518B
General Description
The MAX1518B includes a high-performance step-up
regulator, two linear-regulator controllers, and high-cur-
rent operational amplifiers for active-matrix, thin-film tran-
sistor (TFT), liquid-crystal displays (LCDs). Also included
is a logic-controlled, high-voltage switch with adjustable
delay.
The step-up DC-DC converter provides the regulated
supply voltage for the panel source driver ICs. The con-
verter is a high-frequency (1.2MHz) current-mode regu-
lator with an integrated 14V n-channel MOSFET that
allows the use of ultra-small inductors and ceramic
capacitors. It provides fast transient response to pulsed
loads while achieving efficiencies over 85%.
The gate-on and gate-off linear-regulator controllers
provide regulated TFT gate-on and gate-off supplies
using external charge pumps attached to the switching
node. The MAX1518B includes five high-performance
operational amplifiers. These amplifiers are designed to
drive the LCD backplane (VCOM) and/or the gamma-
correction divider string. The device featureS high out-
put current (±150mA), fast slew rate (13V/μs), wide
bandwidth (12MHz), and rail-to-rail inputs and outputs.
The MAX1518B is available in a 32-pin thin QFN pack-
age with a maximum thickness of 0.8mm for ultra-thin
LCD panels.
Applications
Notebook Computer Displays
LCD Monitor Panels
Automotive Displays
Features
2.6V to 6.5V Input Supply Range
1.2MHz Current-Mode Step-Up Regulator
Fast Transient Response to Pulsed Load
High-Accuracy Output Voltage (1.5%)
Built-In 14V, 2.4A, 0.16
n-Channel MOSFET
High Efficiency (90%)
Linear-Regulator Controllers for V
GON
and V
GOFF
High-Performance Operational Amplifiers
±150mA Output Short-Circuit Current
13V/μs Slew Rate
12MHz, -3dB Bandwidth
Rail-to-Rail Inputs/Outputs
Logic-Controlled, High-Voltage Switch with
Adjustable Delay
Timer-Delay Fault Latch for All Regulator Outputs
Thermal-Overload Protection
0.6mA Quiescent Current
Minimal Operating Circuit
M
TFT-LCD DC-DC Converter with
Operational Amplifiers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
STEP-UP
CONTROLLER
GATE-ON
CONTROLLER
SWITCH
CONTROL
GATE-OFF
CONTROLLER
REF
V
CN
V
CP
V
MAIN
LX
FB
PGND
AGND
DRVP
FBP
V
CP
V
GON
V
CN
V
GOFF
DEL
CTL
DRVN
FBN
NEG4
REF
POS4
NEG5
POS5
OUT4
OUT5
BGND
NEG2
POS2
OP3
POS3
OUT2
OUT3
POS1
OUT1
NEG1
SUP
COM
DRN
SRC
COMP
IN
V
IN
MAX1518B
OP2
OP1
OP5
OP4
19-3244; Rev 0; 10/05
EVALUATION KIT
AVAILABLE
PART
TEMP
RANGE
PIN-PACKAGE
PKG
CODE
MAX1518BETJ
-40
°
C to
+100
°
C
32 Thi n QFN 5m m x 5m m T3255-4
Pin Configuration appears at end of data sheet.
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參數(shù)描述
MAX1518BETJ+ 功能描述:LCD 驅(qū)動器 TFT-LCD DC-DC Conv w/Op Amps RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
MAX1518BETJ+T 功能描述:LCD 驅(qū)動器 TFT-LCD DC-DC Conv w/Op Amps RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
MAX1518ETJ 功能描述:LCD 驅(qū)動器 RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
MAX1518ETJ+ 功能描述:LCD 驅(qū)動器 TFT-LCD DC-DC Conv w/Op Amps RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
MAX1518ETJ+T 功能描述:LCD 驅(qū)動器 TFT-LCD DC-DC Conv w/Op Amps RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube