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LM3915 Dot/Bar Display Driver

LM3915 Dot/Bar Display Driver
Out Of Stock
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LM3915 Dot/Bar Display Driver
  • Stock: Out Of Stock
  • Brand: xcluma
  • Model: BE-000677
  • Weight: 10.00g
  • MPN: BE-000677
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Rs110.00
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DESCRIPTION:
The LM3915 is a monolithic integrated circuit that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing a logarithmic 3 dB/step analog display. One pin changes the display from a bar graph to a moving dot display. LED current drive is regulated and programmable, eliminating the need for current limiting resistors. The whole display system can operate from a single supply as low as 3V or as high as 25V.
The IC contains an adjustable voltage reference and an accurate ten-step voltage divider. The high-impedance input buffer accepts signals down to ground and up to within 1.5V of the positive supply. Further, it needs no protection against inputs of ±35V. The input buffer drives 10 individual comparators referenced to the precision divider. Accuracy is typically better than 1 dB.
 
FEATURES:
  • Provides a Logarithmic 3dB Analog Display from Analog Voltage Input
  • Drives LED's, LCD's or Vacuum Flourescents
  • Bar or Dot Display Mode
  • Expandable to 100 Steps
  • Internal Voltage Reference from 1.2V to 12V
  • Operates with single supply of 3V to 25V
  • Inputs operate down to ground
  • Output current programmable from 1 mA to 30 mA
  • Input withstands ±35V without damage or false outputs
  • Outputs are current regulated, open collectors
  • Directly drives TTL or CMOS
  • The internal 10-step divider is floating and can be referenced to a wide range of voltages

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Tags: integrated circuit, lm3915, lm 3915,

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