SunFounder Smart Car Kit V2.0, Руководство пользователя

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L298N is a high voltage, large current driver chip manufactured by ST, which uses a 15-pin
package.
Its main features are as follows:
• High operating voltage, which can be up to 40 volts.
• Large output current - the instantaneous peak current can be up to 3A.
• With 25W rated power.
• Two built-in H-bridge, high voltage, large current, full bridge driver, which can be used to
drive DC motors, stepper motors, relay coils and other inductive loads.
• Using standard logic level signal to control.
• Able to drive a two-phase or four-phase stepper motor, and two-phase DC motors.
Its pin functions are as shown below:
Pin Name Description
1
15
Sense A
Sense B
The sense resistor is connected between this pin and ground to
control the current of the load.
2
3 Out 1
Out 2
Outputs of the Bridge A; the current that flows through the load
connected between these two pins is monitored at pin 1.
4 Vs
Supply Voltage for the Power Output Stages.
A non-inductive 100nF capacitor must be connected between this
pin and ground.
5
7 Input1
Input2
TTL Compatible Inputs of the Bridge A.
6
11
Enable A
Enable B
TTL Compatible Enable Input: the L state disables the bridge A
(enable A) and/or the bridge B (enable B).
8 GND
GND
9 Vss
Supply Voltage for the Logic Blocks. A100nF capacitor must be
connected between this pin and ground.
10
12 Input3
Input4
TTL Compatible Inputs of the Bridge B.
13
14 Out 3
Out 4 Outputs of the Bridge B. The current that flows through the load
connected between these two pins is monitored at pin 15.
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