參數(shù)資料
型號: LM3916N
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 顯示驅動器
英文描述: Dot/Bar Display Driver
中文描述: LED DISPLAY DRIVER, PDIP18
封裝: PLASTIC, DIP-18
文件頁數(shù): 14/27頁
文件大小: 509K
代理商: LM3916N
Application Hints
(Continued)
Other Applications
For increased resolution, it’s possible to obtain a display with
a smooth transition between LEDs. This is accomplished by
superimposing an AC waveform on top of the input level as
shown in Figure 14 The signal can be a triangle, sawtooth or
sine wave from 60 Hz to 1 kHz. The display can be run in ei-
ther dot or bar mode.
DS007971-19
5 mA
I
LED
28 mA
V
REF
= 5V
FIGURE 12. Independent Adjustment of Reference Voltage and LED Intensity for Multiple Drivers
DS007971-20
1.25V
V
REF
10V
1.5 mA
I
LED
25 mA
Optional circuit for improved intensity matching at low currents. See text.
FIGURE 13. Wide-Range Adjustment of Reference Voltage and LED intensity for Multiple Drivers
L
www.national.com
14
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