Part Number: LM, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor. LM datasheet, LM circuit, LM data sheet: NSC – Dot/Bar Display Driver,alldatasheet, datasheet, Datasheet search site for Electronic. LM datasheet, LM circuit, LM data sheet: TI1 – LM Dot/Bar Display Driver,alldatasheet, datasheet, Datasheet search site for Electronic.

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The LM is very versatile. A feature not completely illustrated by the block diagram is.

LM Datasheet(PDF) – National Semiconductor (TI)

High currents should not share. Expanded scale meter applications may have. This technique can be extended for larger numbers. The connection for cascading datxsheet.

The VU scale divisions differ slightly from a linear scale. As long as the input signal voltage is below the threshold of.

The most difficult problem occurs when large LED currents. Current flowing out of the signal input.

Output Leakage, Each Collector. As the input voltage. Useful in other applications are the linear LM and the logarithmic LM The input buffer drives 10 individual com. A LED current of. In most applications, pin 9 is.


National Semiconductor certifies that the products and packing materials meet the provisions of the Lm316 Products Stewardship.

The reference voltage is impressed across. R2 and R3, so that appropriate selection of these values.

Dot/Bar Display Driver

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. Specifications are not guaranteed for parameters where no limit. Block Diagram of Mode Pin Function. To display signals of 40 dB or 70 dB. The differential input voltage which must be.

Display will change to bar as soon as the LED so selected begins to light. The maximum junction temperature of the LM is ? Capacitor C1 is required if leads to the LED supply are 6″ or longer.

VU meter is a relatively slow full-wave averaging type, speci. Specified and tested with 10V across the inter.

Display circuits such as the extended range VU meter using. The high-impedance input n Bar or dot display mode externally selectable by user buffer accepts signals down to ground and up to within 1. A high input imped.

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The whole display system can operate from a. Outputs may be run in saturation with no adverse effects. Replacing conventional meters with an LED bar graph results in a faster responding, more rugged Display with high visibility that retains the ease of interpretation of an Analog Display The LM is extremely easy to apply.


Typical standby supply current all. Extreme care is required as the. LED 1 with a 10k resistor. The ability to modu. Signal Range Pin 5. Further, it needs no protection against.

One more resistor programs the full-scale anywhere from 1. The internal step divider is floating and can be. The simplified LM block diagram is included to give the. National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves.

LED 10 pin 10 output current is. Optional circuit for improved intensity matching at low currents. F aluminum electrolytic capacitor. The high-impedance input Buffer accepts dqtasheet down to ground and up to within 1.