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參數資料
| 型號： | MAX1514ETP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | TFT-LCD Power-Supply Controllers |
| 中文描述： | SWITCHING CONTROLLER, 1725 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封裝： | 4 X 4 MM, 0.80 MM HEIGHT, MO-220-VGGD, TQFN-20 |
| 文件頁數： | 1/28頁 |
| 文件大小： | 540K |
| 代理商： | MAX1514ETP |
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General Description
The MAX1513/MAX1514 provide complete power-sup-
ply solutions for active-matrix thin-film transistor (TFT)
liquid-crystal displays (LCDs). Both devices include a
high-performance step-up regulator controller, three lin-
ear-regulator controllers, and an adjustable delay block
for startup sequencing. The MAX1513 includes an
additional linear-regulator controller and a high-perfor-
mance buffer amplifier. The MAX1513/MAX1514 can
operate from 2.7V to 5.5V input supplies and provide
overload protection with timer delay latch on all the reg-
ulated outputs.
The step-up regulator controller drives an external N-
channel MOSFET to generate the regulated supply volt-
age for the panel source-driver ICs. Its current-mode
control architecture provides fast transient response to
pulsed loads. The high switching frequency (up to
1.5MHz) allows the use of ultra-small inductors and
ceramic capacitors while achieving efficiencies over 85%
using lossless current sensing. The internal soft-start lim-
its the input surge current during startup.
The gate-on and gate-off linear-regulator controllers of
the MAX1513/MAX1514 provide regulated TFT gate-on
and gate-off supplies. The gate-on supply is activated
after an adjustable delay following the step-up regulator.
The logic linear-regulator controller can be used to cre-
ate a low-voltage logic supply. The gamma linear-regula-
tor controller of the MAX1513 can be used to generate a
gamma-correction reference supply or another general-
purpose supply rail. The MAX1513’s high-performance
buffer amplifier can drive the LCD backplane (VCOM)
or the gamma-correction divider string.
The MAX1513/MAX1514 are available in 4mm
4mm
20-pin thin QFN packages with a maximum thickness of
0.8mm, suitable for ultra-thin LCD panel design.
Applications
Notebook Computer Displays
LCD Monitors and TVs
Automotive Displays
Features
2.7V to 5.5V Input Supply Range
Input-Supply Undervoltage Lockout
Current-Mode Step-Up Controller
Fast Transient Response to Pulsed Load
High Efficiency
Lossless Current Sensing
430kHz/750kHz/1.5MHz Switching Frequency
Linear-Regulator Controllers for V
GON
, V
GOFF
Linear-Regulator Controller for Logic Supply
High-Performance Buffer Amplifier (MAX1513 Only)
Additional Linear-Regulator Controller
(MAX1513 Only)
Power-Up Sequence and V
GON
Delay Control
V
MAIN
, V
GON
, V
GOFF
, V
GAMMA
Shutdown Control
Timer-Delay Fault Latch for All Outputs
Thermal-Overload Protection
M
TFT-LCD Power-Supply Controllers
________________________________________________________________
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
19-3047; Rev 0; 10/03
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
20 Thin QFN 4mm x 4mm
20 Thin QFN 4mm x 4mm
MAX1513
ETP
MAX1514
ETP
Pin Configuration appears at end of data sheet.
EVALUATION KIT
AVAILABLE
MAX1513
MAX1514
SDFR
IN
V
GAMMA
V
IN
DEL
DRVL
FBL
V
LOGIC
V
MAIN
DRVG
FBG
SUPB
FBPB
OUTB
TO VCOM
V
MAIN
V
GOFF
V
GON
CS+
CS-
GATE
GND
FB
DRVP
FBP
DRVN
FBN
REF
Minimal Operating Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1514ETP+T | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1514ETP-T | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1515ETG | 功能描述:直流/直流開關調節器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX1515ETG+ | 功能描述:直流/直流開關調節器 3A 1MHz Step-Down DDR Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX1515ETG+T | 功能描述:直流/直流開關調節器 3A 1MHz Step-Down DDR Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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