DataSheet8.cn


PDF ( 数据手册 , 数据表 ) G5520A

零件编号 G5520A
描述 Bias Power Supply
制造商 Global Mixed-mode Technology
LOGO Global Mixed-mode Technology LOGO 


1 Page

No Preview Available !

G5520A 数据手册, 描述, 功能
Global Mixed-mode Technology
G5520A
Bias Power Supply for TFT LCD Panels
Features
„ 2.5V to 5.5V Input Supply Range
„ Active-High Enable Control
„ 1.2MHz Current-Mode Boost Regulator
Š Fast Transient Response to Pulse Load
Š ±1% Accurate Output Voltage
Š Built-In 20V/1.8A, 0.7Ω N-Channel MOSFET
Š High Efficiency up to 90%
Š Over-Current Protection
Š Output Under-Voltage Protection
„ High-Performance Operational Amplifier
Š ±150mA Output Short-Circuit Current
Š 12V/μs Slew Rate
Š 12MHz, -3dB Bandwidth
Š Rail-to-Rail Input and Output
„ 600kHz Negative Charge Pump Driver for VGL
„ 600kHz Positive Charge Pump Driver for VGH
„ Power-On Sequence Control
„ Thermal-Overload Protection
„ TQFN3X3-16 Package
Applications
„ Photo Frame
„ GPS
„ UMPC
General Description
The G5520A includes a high-performance boost regu-
lator, a VCOM buffer (unity gain OPA), a VGH charge
pump driver, and a VGL charge pump driver for ac-
tive-matrix thin-film transistor (TFT) liquid-crystal dis-
plays (LCDs).
The boost converter provides the regulated supply
voltage for the panel source driver ICs. The converter
is a high switching frequency (1.2MHz) current mode
regulator with an integrated 20V N-Channel 0.7Ω
MOSFET that allows the use of ultra-small inductors
and ceramic capacitors. It provides fast transient re-
sponse to pulsed loading while achieving efficiency
over 90%. The device can produce output voltage as
high as 18V from an input as low as 2.8V.
The VCOM buffer can drive the LCD VCOM voltage that
features high short-circuit current (150mA), fast slew
rate (12V/μs), wide bandwidth (12MHz) and rail-to-rail
input/output.
A positive and a negative charge-pump driver provide
adjustable regulated output voltages VGH and VGL to
bias the TFT. Both the charge-pump driver operate
with 600kHz switching frequency.
The G5520A includes internal power-up sequencing,
over/under voltage protections of the boost converter,
and over temperature protection to ensure in safe op-
erating.
The G5520A are available in a 16-pin 3X3TQFN
packages.
Ordering Information
ORDER
NUMBER
MARKING
G5520AR41U 5520A
Note: R4:TQFN3X3-16
1: Bonding Code
U: Tape & Reel
TEMP.
RANGE
-40°C to +85°C
PACKAGE
(Green)
TQFN3X3-16
Pin Configuration
DRVN 1
REF 2
AGND 3
NC 4
Thermal
Pad
12 FB
11 IN
10 LX
9 PGND
Ver: 0.2
Oct 21, 2013
G5520A TQFN3X3-16
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
1












页数 1 页
下载[ G5520A.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
G5520ABias Power SupplyGlobal Mixed-mode Technology
Global Mixed-mode Technology

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap