L298N IC

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L298N IC
2 irányú motor vezérlés, driver, dual motor meghajtó

Cikkszám: #8355

100% magyar cég! 100% magyar raktár!

(Bruttó) Ár: 790 Ft

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Szállítása már 1490Ft-tól, akár 1 munkanap...

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Az L298N kiváló dual motor meghajtó IC kisebb motorokhoz, de egyéb fogyasztók kapcsolására és PWM meghajtására is megfelelő, léptetőmotorokhoz is megfelelő. Az L298N IC tulajdonképpen az L298D kisebb IC nagytestvére, jól ismert bekötések, rengeteg tutorial és mintakapcsolás található analóg és digitális vezérlésekhez.

Külön többféle modulos L298D és L298N is megtalálható kínálatunkban.

Features and Specifications

Operating voltage range: +5 to +46V
Maximum supply voltage:50V
Maximum Input and Enable Voltage:+7V
Maximum current allowed to draw through each output: 3A
TTL control inputs
Total power dissipation:25W
Operating temperature: -23°C to 130°C
Storage Temperature: -40°C to 150°C

Note: Complete technical details can be found in the L298 Datasheet linked at the bottom of this page.

Whereto Use L298 IC

Here are few areas where L298 is preferred:

1. L298 is basically used where H- BRIDGE is required.

2. Where a high power motor driver is required. In the marked there are H-bridges like L293 which are used for low powered application while L298 is specially designed for high power applications.

3. Where current control and PWM operable single chip device is needed.

4. The chip is preferred when control unit can only provide TTL outputs

Also the chip does not need any additional components to be installed for operating.

How to Use L298 IC

For understanding the working of L298 IC, consider the simple circuit configuration shown below.

L298 Circuit Diagram

Here we are using one of H-BRIGES of l298 IC. As shown in circuit we have two push buttons Q1 and Q2 which act as controls inputs for bridge-A. These logic inputs are provided by Microcontroller or Microprocessor in application circuits. The four diodes are FLYBACK diodes used for protecting the IC form inductive voltage spikes. The enable pin is pulled high through a resistor so bridge-A will be functioning all the time. If it’s pulled to ground the bridge-A will be disabled no matter the input control logic.

After all the circuit is setup we need to press the buttons Q1 and Q2 to change the flow of current between pins OUT1 and OUT2. The logic control table is given as.

INPUTS	FUNCTION
Q1=HIGH, Q2=LOW	Forward current
Q1=LOW,Q2=HIGH	Reverse current
Q1=Q2	Fast MOTOR stop

So if only Q1 is pressed, the current flows from OUT1 to OUT2. With that MOTOR rotates clock wise direction. If only Q2 is pressed, the current flows from OUT2 to OUT1. With that MOTOR rotates anti clock wise direction. If both buttons are pressed or released simultaneously the MOTOR comes to stop immediately. In this way we can control the motor rotation using L298 chip.