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Description
Dot/bar Display Driver
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Introduce this Module:
The LM3915 is a monolithic IC Chip that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing a logarithmic 3 dB/step analog display. One pin change the display from a bar graph to a moving dot display. Light-Emitting Diode 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 3 Voltage or as high as 25V.
Some Core Parameters:
SPECIAL FEATURES :
● 3dB/step, 30dB Range
● Drives LEDs, LCDs, or Vacuum Fluorescents
● Bar or Dot Display Mode Externally IC Chip Selectable by User
● Expandable to Displays of 90dB
● Internal Voltage Reference from 1.2Volt to 12Volt
● Operates with Single Power Supply of 3Volt to 25Volt
● Inputs Operate Down to Ground
● Output Current Programmable from 1milliampere to 30milliampere
● Outputs are Current Regulated, Open Collectors
● Directly Drives TTL or CMOS
How it Uses in the work:
Internal Circuit Diagram:
LM3915 Pinout Connections:
Absolute maximum ratings:
● Power Dissipation: 1365mW
● Supply Voltage: 25V
● Voltage on Output Drivers: 25V
● Input Signal Overvoltage: 35V
● Divider Voltage: - 100mV to V+
● Reference Load Current: 10mA
● Storage Temperature Range: - 55℃ to +150℃
Preview of the first 3 pages of the data sheet
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10000 buyer reviews from United States
suhail salloum
Length of registration:5 years
Very satisfied with
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06/27/2018
Matthew Hernandez
Length of registration:7 years
I recently purchased an IC LM3915N-1 from your company and am very pleased with the product. The IC is very easy to use and has a wide range of applications. I have used it to create an audio level indicator for my home audio system and it works great. The IC is very reliable and has a long life span. I would highly recommend your product to anyone looking for a reliable and easy to use IC. Thank
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03/17/2023
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LM3915
LM3915 has several brands around the world that may have alternate names for LM3915 due to regional differences or acquisition. LM3915 may also be known as the following names:
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