參數(shù)資料
型號(hào)： MAX9551EUA+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 9/12頁(yè)
文件大?。?/td> 0K
描述： IC BUFFER VCOM 8-UMAX
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
應(yīng)用： TFT-LCD 面板：VCOM 驅(qū)動(dòng)器
電路數(shù)： 2
電流 - 電源： 2mA
電流 - 輸出 / 通道： 55mA
電壓 - 電源，單路/雙路(±)： 6 V ~ 20 V，±3 V ~ 10 V
安裝類型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 8-uMax-EP
包裝： 管件
MAX9550/MAX9551/MAX9552
High-Current VCOM Drive Buffers
for TFT LCDs
6
_______________________________________________________________________________________
MAX9550
16V
SUPPLY
16V
SUPPLY
*C1 = 4.7F
CL =1F
*C2 = 0.1F
*PLACE 4.7F AND 0.1F CAPACITORS AS CLOSE TO PIN AS POSSIBLE.
**RS INCLUDES THE GENERATOR RESISTANCE.
NOTE: PLACE CL AS CLOSE TO OUT PIN AS POSSIBLE AND KELVIN
SENSE THE FEEDBACK LOOP CONNECTION AS SHOWN.
0V TO 1.5V AT 50kHz
CS = 0.1F
**RS = 2.2
IN+
OUT
VOUT
TEST LOAD
VREF
VDD
IN-
GND
Figure 1. Settling Time Test Circuit
Detailed Description
The MAX9550/MAX9551/MAX9552 operational transcon-
ductance amplifiers (OTA) hold the VCOM voltage sta-
ble while providing the ability to source and sink a high
current quickly (800mA typ) into a capacitive load such
as the backplane of a TFT-LCD panel. The output settles
to within 0.1% in less than 2s. The fast settling time is
achieved by increasing the transconductance of the
buffer as the output current increases (see the Typical
Operating Characteristics).
In addition, the MAX9550/MAX9551/MAX9552 directly
drive the capacitive load in the VCOM layer of the
TFT LCD without the need for a series resistor.
The MAX9550/MAX9551/MAX9552 unity-gain band-
width is:
GBW = gM / 2πCOUT
where COUT is the capacitive load at the output and gM
is the transconductance.
To insure buffer stability, place a 1F low-ESR capaci-
tor as close to the OUT pin as possible. However, this
value may be reduced if the TFT-LCD panel load pro-
vides some of the capacitance and the resistance in
series when this capacitance is low. Connect the feed-
back at OUT using a Kelvin connection at the low-ESR
capacitor.
Thermal Shutdown with Temperature
Hysteresis
The MAX9550/MAX9551/MAX9552 are capable of high
output currents and therefore, feature thermal-shutdown
protection with temperature hysteresis. When the die tem-
perature reaches +160°C, the devices shut down. When
the die cools down by 15°C, the devices turn on again.
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參數(shù)描述
MAX9551EUA+ 功能描述:LCD 驅(qū)動(dòng)器 VCOM Drive Buffer for TFT LCD RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)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
MAX9551EUA+T 功能描述:LCD 驅(qū)動(dòng)器 VCOM Drive Buffer for TFT LCD RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)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
MAX9552EUD+ 功能描述:LCD 驅(qū)動(dòng)器 VCOM Drive Buffer for TFT LCD RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)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
MAX9552EUD+T 功能描述:LCD 驅(qū)動(dòng)器 VCOM Drive Buffer for TFT LCD RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)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
MAX9552EVKIT+ 功能描述:LCD 驅(qū)動(dòng)器 Evaluation Kit for the MAX9552 RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)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
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