LM3914V

20PLCC, LM3914V, 1365 mW, 25V, 10mA, National Semiconductor

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PartNumber:: LM3914V

Brand:: National Semiconductor - NS | Pack: PLCC | D/C: 09+

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Products Upload time: 2012-01-10

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Product Summary

The LM3914V is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog 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 of LM3914V is one that allows operation of the whole system from less than 3V.

Parametrics

LM3914V absolute maximum ratings: (1)Power Dissipation: Molded DIP (N): 1365 mW; (2)Supply Voltage: 25V; (3)Voltage on Output Drivers: 25V; (4)Input Signal Overvoltage: ±35V; (5)Divider Voltage: -100 mV to V+; (6)Reference Load Current: 10 mA; (7)Storage Temperature Range: -55℃ to +150℃; (8)Soldering Information Dual-In-Line Package Soldering (10 seconds): 260℃; (9)Plastic Chip Carrier Package: Vapor Phase (60 seconds): 215℃, Infrared (15 seconds): 220℃.

Features

LM3914V features: (1)Drives LEDs, LCDs or vacuum fluorescents; (2)Bar or dot display mode externally selectable by user; (3)Expandable to displays of 100 steps; (4)Internal voltage reference from 1.2V to 12V; (5)Operates with single supply of less than 3V; (6)Inputs operate down to ground; (7)Output current programmable from 2 mA to 30 mA; (8)No multiplex switching or interaction between outputs; (9)Input withstands ±35V without damage or false outputs; (10)LED driver outputs are current regulated, open-collectors; (11)Outputs can interface with TTL or CMOS logic; (12)The internal 10-step divider is floating and can be referenced to a wide range of voltages.