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參數(shù)資料
| 型號： | ISL24003 |
| 廠商： | Intersil Corporation |
| 英文描述： | Multi-Channel Buffers Plus VCOM Driver(多通道緩沖器和VCOM驅(qū)動器) |
| 中文描述： | 多通道加的VCOM驅(qū)動緩沖器（多通道緩沖器和威科姆驅(qū)動器） |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 535K |
| 代理商： | ISL24003 |
8
FN6118.0
December 7, 2005
Description of Operation and Application
Information
Product Description
The ISL24003 are fabricated using a high voltage CMOS
process. They exhibit rail to rail input and output capability
and have very low power consumption. When driving a load
of 10K and 12pF, the buffers have a -3dB bandwidth of
10MHz and exhibit 9V/μs slew rate. The V
COM
amplifier has
a -3dB bandwidth of 12MHz and exhibit 10V/μs slew rate.
Input, Output, and Supply Voltage Range
The ISL24003 are specified with a single nominal supply
voltage from 5V to 15V or a split supply with its total range
from 5V to 15V. Correct operation is guaranteed for a supply
range from 4.5V to 16.5V.
The input common-mode voltage range of the ISL24003
within 500mV beyond the supply rails. The output swings of
the buffers and V
COM
amplifier typically extend to within
100mV of the positive and negative supply rails with load
currents of 5mA. Decreasing load currents will extend the
output voltage even closer to each supply rails.
Output Phase Reversal
The ISL24003 are immune to phase reversal as long as the
input voltage is limited from V
S
- -0.5V to V
S
+ +0.5V.
Although the device's output will not change phase, the
input's over-voltage should be avoided. If an input voltage
exceeds supply voltage by more than 0.6V, electrostatic
protection diode placed in the input stage of the device begin
to conduct and over-voltage damage could occur.
Output Drive Capability
The ISL24003 do not have internal short-circuit protection
circuitry. The buffers will limit the short circuit current to
120mA and the V
COM
amplifier will limit the short circuit
current to 150mA if the outputs are directly shorted to the
positive or the negative supply. If the output is shorted
indefinitely, the power dissipation could easily increase such
that the part will be destroyed. Maximum reliability is
maintained if the output continuous current never exceeds
10mA for the buffers and 60mA for the V
COM
amplifier.
These limits are set by the design of the internal metal
interconnections.
The Unused Buffers
It is recommended that any unused buffers should have their
inputs tied to ground plane.
Power Dissipation
With the high-output drive capability of the ISL24003, it is
possible to exceed the 125°C “absolute-maximum junction
temperature” under certain load current conditions.
Therefore, it is important to calculate the maximum junction
temperature for the application to determine if load
conditions need to be modified for the buffer to remain in the
safe operating area.
The maximum power dissipation allowed in a package is
determined according to:
where:
T
JMAX
= Maximum junction temperature
T
AMAX
= Maximum ambient temperature
θ
JA
= Thermal resistance of the package
P
DMAX
= Maximum power dissipation in the package
The maximum power dissipation actually produced by an IC
is the total quiescent supply current times the total power
supply voltage, plus the power in the IC due to the loads, or:
when sourcing, and:
when sinking.
where:
i = 1 to total number of buffers
V
S
= Total supply voltage of buffer and V
COM
I
SMAX
= Total quiescent current
V
OUT
i = Maximum output voltage of the application
V
OUT
= Maximum output voltage of V
COM
I
LOAD
i = Load current of buffer
I
LA
= Load current of V
COM
If we set the two P
DMAX
equations equal to each other, we
can solve for the R
LOAD
's to avoid device overheat. The
package power dissipation curves provide a convenient way
to see if the device will overheat. The maximum safe power
dissipation can be found graphically, based on the package
type and the ambient temperature. By using the previous
equation, it is a simple matter to see if P
DMAX
exceeds the
device's power derating curves.
P
DMAX
T
- T
JA
--------------------------------------------
=
P
DMAX
V
S
+
V
S
I
S
I
LA
Σ
i
V
S
+
(
V
OUT
i
)
I
LOAD
i
]
(
V
OUT
)
×
–
+
×
–
×
+
×
=
P
DMAX
V
OUT
V
S
I
S
I
LA
Σ
i
V
(
OUT
i
[
V
S
-
)
I
LOAD
i
]
(
V
S
-
)
×
–
+
×
–
×
+
×
=
ISL24003
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL24003 WAF | 制造商:Intersil Corporation 功能描述: |
| ISL24003IRZ | 功能描述:IC BUFFER 18CH VCOM DRVR 44-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| ISL24003IRZ-T7 | 功能描述:IC BUFFER 18CH VCOM DRVR 44-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 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 供應(yīng)商設(shè)備封裝:8-uMax-EP 包裝:管件 |
| ISL24005IRTZ | 制造商:Intersil Corporation 功能描述:PB-FREE 14-CH PROGRAMMABLE SWITCHABLE I2C TFT-L - Bulk |
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