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參數(shù)資料
| 型號： | 5S25.030LCD |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 83K |
| 代理商： | 5S25.030LCD |
A
.38 Watt LCDSingle Series DC/DC Converters
2401 Stanwell Drive Concord, California 94520 Ph: 925/687-4411 or 800/542-3355 Fax: 925/687-3333 www.calex.com Email: sales@calex.com
1
eco: 010918-2, 9/2001
Features
!
3 or 5 Volt Inputs
!
Positive or Negative LCD Bias Output
!
Simple 4 Terminal Operation
!
Low Cost
!
Small Sealed SIP Package
!
5 Year Warranty
Description
The LCD Series of DC/DC converters provides a low cost way
to derive the bias voltage for LCD displays in systems where
only 3 or 5 volt digital voltages are available.
The LCD series converts 3 or 5 volt inputs to an isolated 25
volts DC at up to 750 milliwatts of power. The simple 4 terminal
operation allows for quick system design.
The isolated output allows the LCD converter to be
connected in either a positive output mode for color displays
or as a negative bias for monochrome displays.
The LCD series is packaged in an environmentally rugged
plastic case. The use of special potting compounds allows the
converters to be water washed and operate over the full -40°
to 85°C industrial temperature range.
Applications Information
Connecting To Your System
Figure 1 shows the input and output connections for the LCD
series of converters. The output should be bypassed with at
least a 4.7 μF tantalum capacitor. For lower noise operation,
especially at low temperatures this value may be increased to
10 or 20 μF as required.
Figure 1.
The output of the LCD series should be bypassed with a 4.7 to 20μF
tantalum. The input may need to be bypassed if the converter is
more than 1 to 2 inches from the input source or if the source
impedance is high.
The input should be bypassed if it is more than about 1 or
2 inches from the input supply or if the input source impedance
is large. A 1 to 20 μF tantalum works well for the input bypass.
Figure 2.
The LCD series may be connected to supply either a positive or
negative LCD bias voltage as shown.
For a positive LCD Bias voltage connect pin 3 to pin 2 and
take the positive bias voltage from pin 4. For a negative bias
voltage connect pin 4 to pin 2 and take the negative bias
voltage from pin 3. These connections are shown in figure 2.
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Specifications subject to change without notice.
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