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LM3914N Pinout Diagram

Part Series:LM3914N Series
Category:LED Drivers
Description:Led Driver, 10Outputs, Analogue Dimming, 3V-15V in, 1.34V/30mA out, DIP-18
Document:LM3914N-1/NOPB Datasheet PDF (29 Pages)

LM3914N LED Drivers Pinout Diagram

LM3914N-1/NOPB - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Through Hole
Number of Pins
18 Pin
Case/Package
DIP-18
Number of Outputs
10 Output
Input Voltage (DC)
3.00V ~ 15.0V
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LM3914N-1/NOPB - TI Function Overview

The LM3914N-1/NOPB is a monolithic IC that senses analogue voltage levels and drives 10 LEDs, providing a linear analogue display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V. The circuit contains its own adjustable reference and accurate 10-step voltage divider. The low-bias-current input buffer accepts signals down to ground or V-, yet needs no protection against inputs of 35V above or below ground. The buffer drives 10 individual comparators referenced to the precision divider. Indication non-linearity can thus be held typically to 1/2%, even over a wide temperature range.
Drives LEDs, LCDs or Vacuum Fluorescents
Bar or Dot Display Mode Externally Selectable by User
Expandable to Displays of 100 Steps
Operates with Single Supply of Less than 3V
Inputs Operate Down to Ground
Output Current Programmable from 2 to 30mA
No Multiplex Switching or Interaction Between Outputs
Input Withstands ±35V without Damage or False Outputs
LED Driver Outputs are Current Regulated, Open-collectors
Outputs can Interface with TTL or CMOS Logic
Internal 10-step Divider is Floating and can be Referenced to a Wide Range of Voltages
Green Product, No Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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