LM1391N DATASHEET PDF

LMN Texas Instruments Phase Locked Loops – PLL datasheet, inventory, & pricing. LMN Datasheet PDF, pdf, pinout, equivalent, replacement, schematic, manual, data, circuit, parts, datasheet. National Semiconductor LMN: available from 2 distributors. Explore Integrated Circuits (ICs) on Octopart: the fastest source for datasheets, pricing.

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Search the history of over billion web pages on the Internet. Full text of ” sprague:: Exact replacement in all applications is not guaranteed and the user should compare the specifications of the competitive and recommended Sprague replacement. IfSprague device includes internal pull-down resistors. TSome differences in specified switching speed with the Lm1391j device being superior for use with inductive loads.

ISprague device includes internal pull-down resistors.

LMN in stock = 0

For all monolithic integrated circuits except Hall effect devices, Sprague Electric Co. Headquarters of the Semiconductor Division is located in Worcester, Mass. All semiconductor wafer fabrication is done in the Worcester plant, as are all services integral to its support. Volume as- sembly operations are located both in Worcester and in Manila, Philippines. Sprague Electric is a leading manufacturer of vol- ume integrated circuits serving the consumer, indus- trial controls, and peripherals markets.

Production process technologies include complementary metal-gate MOS, high-voltage and high-current bipolar, and high-performance bipolar linear. This breadth of process technology makes it possible for Sprague Electric to manufacture optimal cost- performance integrated circuits.

Quality Control and Reliability All critical points in the manufacturing processes of Sprague Electric integrated circuits are carefully monitored for compliance to engineering specifi- cations. Lot sampling as- sures meeting customer A. Calibration of test standards and equipment is per- formed at periodic intervals in order to maintain test accuracy.

Sprague Electric Company conducts a continuing reliability assurance program to detect deviations in device characteristics. Test samples are taken at ran- dom from each lot and are subjected to testing for performance evaluation and specification com- pliance.

Routinely, finished samples are subjected to all electrical performance tests. A copy of the quality control inspection plan used for specific integrated circuits is available on request.

If an individual bulletin and this data book are compared, the latest revision takes precedence. Their high reliability and small size make them an ex- cellent choice for applications where space is at a premium. Therefore, techni- ques similar to those used for handling MOS devices should be employed.

These drivers re- place most of the discrete components normally required to drive multiplexed gas discharge displays from MOS calculator or clock circuits. The Series and high-voltage display drivers are intended for use in the anode portion of the display and are available with either 5 Series or 6 Series drivers per dual in-line package.

Applications The Series and may be used in a variety of low-voltage to high- voltage interfacing applications such as are found in MOS calculators, digital clocks, etc.

Their high reliability and small size make them an excellent choice for those applications where space is at a premium. Type UHP replaces most of the discrete components normally required to drive multiplexed gas-discharge displays with MOS calculator or clock circuits. The high-voltage bipolar interface is designed for use in the anode portion of a display.

It has six drivers per package. Positive negative current is defined as current going into coming out of the specified device pin. Pull-down resistors are incor- porated into each output and no external components are required for most fluorescent display applications. The highest voltage parts suffix A-l are also used in gas-discharge display applications as anode digit drivers. Twenty- four standard devices are listed, so that a circuit designer may select the optimum device for his application.

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Input characteristics, number of drivers, package style, and output voltage are tabulated for each device in the Device Type Number Designation chart. Positive daasheet current is defined as going into coming out of the specified device pin. The inputs include pull-down resistors for direct connection to open-drain PMOS logic. Applications with a greater number of digits rnay use any combination of daasheet for minimum package count.

The devices can be used in a wide variety of low- to high-voltage applications. High reliability, small size, ease of installation, and low cost make them an ideal choice for many applications. Tech- niques similar to those used for handling MOS devices should be employed. These drivers reduce substantially the number of discrete components required with panels Beckman, Burroughs, Dale, Matsushita, NEC, Pan- tek, etc in calculator, clock and instrumentation applications.

The UDN-7 A driver requires extemal current limiting and is intended for higher-current applications or where individual outputs are operated at different current levels i.

All inputs have pull-down resistors for direct connection to open-drain PMOS logic. These devices provide output currents suitable for display segments in a wide variety of display sizes and number of display om1391n.

Either a fixed split supply operation or a feedback-controlled scheme is allowed. Applications The Series UDN-7 A drivers can be used in a wide variety of low- level to high-voltage applications utilizing gas discharge displays such as those found in calculators, clocks, point-of-sale terminals, and instru- ments.

Their high reliability combined with minimum size, ease of installa- tion, and the cost advantages of a complete monolithic interface make them the ideal choice in many applications. A typical application showing the use of these devices, and their counterpart anode drivers, is shown.

Therefore, techniques similar to those used for handling MOS devices should be employed. All voltage measurements are referenced to pin 9 unless otherwise specified. Recommended V KK operating range: It is difficult to fabricate devices capable of sustaining volts or greater with standard IC processes of today. The earliest and a great many recent gas discharge interface schemes used discrete components, but that has been an lm3191n cumbersome and expensive solution.

In most datashewt, the small displays have gone to LEDs. However, the larger display applications are still an opportunity for gas discharge since character size and cost are not directly related.

Add to this the potential for use with feedback con- trolled supplied, poorly regulated d-c supplies, the wide variety of numbers of display digits, the range of digit sizes in use or contemplatedetc. Our direction was determined by two factors: The split supply would provide the volts needed to ionize the dis- play and the resistor capability would greatly aid the incorporation of functions previously done by discrete components – including both input and output seg- ment current limiting, pulldown open drain PMOSpullup and pulldown reference for IC outputs, datasheeg a high impedance voltage divider for the output OFF bias.

All level shifting is accomplished via use of PNP or NPN transistors, and the capacitors previously re- quired were negated. Additional digits or segments beyond the eight provided in an 1 8-lead DIP may be driven by combinations of packages beyond the minimum two necessary.

Included in this series of high voltage interface are two digit driver packages: Digit Interface The digit driver is the more complex of the two and its schematic is shown in Figure 2. Input ad- dress polarity is positive active high in TTL par- lance and the circuit is designed to interface from TTL 4. Input datashete limiting and one-half of the pull-down for open drain PMOS is the function of R 5 ; R 6 adds the second half of the pull-down to the ground bus.

The protective value of R 4 and R 5 lm139n be noted; a junction failure in Q t has the two resistors as a current limiter to the MOS or TTL output and will minimize the likelihood of destroying the low level logic outputs. A positive input 4.

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Ion All inputs at 0. Other inputs at 0.

Recommended Vkk operating range: Problems from leading zero blanking, low temperature, low ambient light, etc. Sogmont Intarfoca The segment driver circuit is shown in Figure 3 and the value of R 2 segment limiting is determined via masking for the appropriate display current. Its datasheeet pull-up resistor Rj is also changed to some known ratio of R 2.

The ground terminal 9 is referenced near, or connected directly to ground, and the V KK line is typically a – 90 to – volts. An added intent is the measure of protection furnished the MOS by the very high impedance of Rj.

LM1391N описание схема включения

Address polarity is again active high. The input may be raised a maximum of 20 volts above ground and will function with input levels obtained from CMOS and open collector TTL 4. Emitter follower Q 4 and Q 5 sources current to the pull-up bus connected to the various outputs as they are turned on during the display scan.

Minimum Component Interface The impact of this new product family may be seen in the typical digital clock of Figure 5. Total component count is approximately 30 pieces, and the board layout is straightforward and uses single-sided board. Many calculator interface schemes use con- siderable numbers of components 70 to typically to drive gas discharge panels. Other applications will benefit similarly with this series of circuits.

Summary Display technology and usage has emerged at a mind boggling rate in the past several years — largely due to the fantastic growth rate of calculators.

LMN datasheet(6/6 Pages) NSC | LM Phase-Locked Loop

Gas discharge panels are a fine combination of aesthetics, reliability, low cost, large character size, multiplexing capability, etc. The planar gas discharge display is a long way from ob- scurity, and the availability of this family of ICs should open up new areas as well as satisfying existing systems. The intent from the inception of this program has been datasheft produce and provide a standard, inexpensive and easy to use interface for gas discharge displays.

A great many potential applications exist for these circuits in consumer and commercial products.

From the calculator and digital clock areas this product also will find use in automotive dashboards, point- of-sale systems, electronic cash registers and scales, and instrumentation. The market for displays is still very elastic, and many applications for gas discharge panels are l,1391n to appear.

The Sprague con- tribution to this market is this series of state-of-the- art interface ICs. Expansion at a phenomenal pace continues, encompassing a multitude of products, particularly high-volume consumer products calculators, clocks, games, and watches. Products have been and are being developed, using microprocessors and displays, that never previously existed. To augment this microprocessor revolution, semiconductor manufacturers are developing many new interface circuits useful with displays, although some of these will not be exclu- sively for display systems.

LM1391N, LM1391P, LM139A

To accomplish this, the present boundaries of device design, process, packaging, and electrical parameters will require continual extension and expansion. Some of this buffer lm1391 will serve display systems. Figures 1, 2, and 3 show some Sprague interface ICs that represent buffer circuits; other vendors supply similar, or identical, high-current or high-voltage buffers to allow operation of displays from low-level logic.

Two basic changes have occurred relatively recently: Creation of sourcing functions Figures 2 and 3 ; useful for LED, gas-discharge, vacuum fluorescent, incandescent, and electromagnetic displays, depending upon device ratings. The need for complex, smart or high-order interface.