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參數(shù)資料
| 型號： | EL9202ILZ-T7 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 4/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP VCOM PROGRAMMABLE 24-QFN |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 應(yīng)用： | TFT-LCD 面板：VCOM 驅(qū)動器 |
| 輸出類型： | 滿擺幅 |
| 電路數(shù)： | 4 |
| -3db帶寬： | 44MHz |
| 轉(zhuǎn)換速率： | 80 V/µs |
| 電流 - 電源： | 10.5mA |
| 電流 - 輸出 / 通道： | 65mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 24-QFN（5x4） |
| 包裝： | 帶卷 (TR) |
12
FN7438.1
October 30, 2008
Non-Volatile Memory (EEPROM)
Programming
When the CTL pin exceeds 4.9V, the non-volatile
programming cycle will be activated. The CTL signal needs
to remain above 4.9V for more than 200s. The level and
timing needed to program the non-volatile memory is given
below. It then takes a maximum of 100ms for the
programming to be completed inside the device (see PT
specification in Table Electrical Specifications on page 3.
FIGURE 28. EEPROM PROGRAMMING
Amplifiers’ Operating Voltage, Input, and Output
The amplifiers 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 of 4.5V to 16.5V. Most amplifier specifications are
stable over both the full supply range and operating
temperatures of -40°C to +85°C. Parameter variations with
operating voltage and/or temperature are shown in the See
The input common-mode voltage range of the amplifiers
extends 500mV beyond the supply rails. The output swings
of the those typically extend to within 100mV of positive and
negative supply rails with load currents of 5mA. Decreasing
load currents will extend the output voltage range even
closer to the supply rails. Figure 27 shows the input and
output waveforms for the device in the unity-gain
configuration. Operation is from 5V supply with a 1k
Ω load
connected to GND. The input is a 10VP-P sinusoid. The
output voltage is approximately 9.8VP-P.
FIGURE 29. OPERATION WITH RAIL-TO-RAIL INPUT AND
OUTPUT
Short-Circuit Current Limit
The amplifiers will limit the short circuit current to ±180mA if
the output is directly shorted to the positive or the negative
supply. If an output is shorted indefinitely, the power
dissipation could easily increase such that the device may
be damaged. Maximum reliability is maintained if the output
continuous current never exceeds ±65mA. This limit is set by
the design of the internal metal interconnects.
Output Phase Reversal
The amplifiers are immune to phase reversal as long as the
input voltage is limited from VS- -0.5V to VS+ +0.5V.
Figure 28 shows a photo of the output of the device with the
input voltage driven beyond the supply rails. Although the
device's output will not change phase, the input's
overvoltage should be avoided. If an input voltage exceeds
supply voltage by more than 0.6V, electrostatic protection
diodes placed in the input stage of the device begin to
conduct and over-voltage damage could occur.
FIGURE 30. OPERATION WITH BEYOND-THE-RAILS INPUT
Unused Amplifiers
It is recommended that any unused amplifiers in a dual and
a quad package be configured as a unity gain follower. The
inverting input should be directly connected to the output
and the non-inverting input tied to the ground plane.
Power Supply Bypassing and Printed Circuit
Board Layout
The amplifiers can provide gain at high frequency. As with
any high-frequency device, good printed circuit board layout
is necessary for optimum performance. Ground plane
construction is highly recommended, lead lengths should be
as short as possible and the power supply pins must be well
bypassed to reduce the risk of oscillation. For normal
operation, a 0.1F ceramic capacitor should be placed from
VS to pin to GND. A 4.7F tantalum capacitor should then be
connected in parallel, placed in the region of the amplifier.
CTLPT
TIME
4.9V
CTL VOLTAGE
OUT
UT
IN
P
U
T
5V
10s
AV = 1
VS = 5V
TA = +25°C
VIN = 10VP-P
1V
10s
VS = 2.5V
AV = 1
TA = +25°C
VIN = 6VP-P
EL9200, EL9201, EL9202
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