L298N DC stepping motor drive board
1. This module uses L298N as the main driver chip, which has the characteristics of strong driving ability, low heat generation and strong anti-interference ability.
2. This module can use the built-in 78M05 to power up and work through the drive power supply. However, in order to avoid damage to the regulator chip, when using a drive voltage greater than 12V, please use the external 5V logic power supply.
3. This module uses large-capacity filter capacitor and freewheeling protection diode, which can improve reliability.
![](https://ae01.alicdn.com/kf/S82e4f477a2dc47b3a34cbaa2611b92b9Q.png)
Module parameters
![](https://ae01.alicdn.com/kf/Sd796559fb30b4090a24fba88202628af7.png)
![](https://ae01.alicdn.com/kf/Sad907e9f2e3d449f8fbb1b5c32e21764H.png)
L298N DC motor drive module
Function analysis
![](https://ae01.alicdn.com/kf/Sb5cd207984eb4d61bf826b8c64500703N.png)
Module parameters
![](https://ae01.alicdn.com/kf/S1955453892d54863a83f5a3bfa140105x.png)
Stepper motor drive:
The ENA and ENB on the board are effective at high level, and the level here refers to TTL level.
ENA is the enabling end of A1 and A2, and ENB is the enabling end of B1 and B2.
BJ is connected to common terminal of stepping motor.
The control logic of the stepping motor is as follows, where A B C D is the four coils of the stepping motor, 1 indicates that there is current flowing, and 0 indicates that there is no current flowing. The coil wiring diagram is shown in the figure below (taking the four-phase stepping motor as an example).
![](https://ae01.alicdn.com/kf/S31d65336bacf48328407172fd6a865cb7.png)
L298N stepping motor drive IC chip
Product introduction
L298N is a high voltage and high current motor driver chip. The chip adopts 1-pin package. The main features are: high working voltage, up to 46V; The output current is large, the instantaneous peak current can reach 3A, and the continuous working current is 2A; The rated power is 25W. It contains two H-bridge high voltage earth pole full-bridge drivers, which can be used to drive DC motors, stepping motors, relay coils and other inductive loads; Adopt standard logic level signal control; It has two enabling control terminals, which operate at low voltage without input signal; The resistance can be detected externally and the change can be fed back to the control circuit. Make L298N chip drive the motor. This chip can drive a two-phase stepping motor or a four-phase stepping motor, and can also drive two DC motors.
Module parameters
![](https://ae01.alicdn.com/kf/S545a0932530948d491692acbf2b5131fh.png)
L298N motor drive board module
Product introduction
The L298N dynamic module, using L298N chip, can directly drive two 3-30V DC motors, and provides 5V output interface, which can supply power to the 5V single-chip microcomputer circuit system, support 3.3VMCU control, can easily control the speed and direction of the DC motor, and can also control the 2-phase stepping motor.
Module parameters
![](https://ae01.alicdn.com/kf/S9632021de6b9440a9a662297589859b0S.png)
Wiring diagram
1. Double-motor connection:
![](https://ae01.alicdn.com/kf/S9c8dcb6873284193aa32bf2315b7a5b2A.png)
2. Stepping motor connection:
![](https://ae01.alicdn.com/kf/Sd9e8bdf22217420bb328f33b4c0e65318.png)
L298N DC motor drive module blue
Module parameters
![](https://ae01.alicdn.com/kf/S5bfb78b6fc8f490697fe9b58b127c6fdv.png)
Product description
Stepper motor drive:
The ENA and ENB on the board are effective at high level, and the level here refers to TTL level.
ENA is the enabling end of A1 and A2, and ENB is the enabling end of B1 and IB2.
BJ is connected to common terminal of stepping motor.
Mini L298N2 circuit DC motor drive board
Product introduction
The motor drive module is very suitable for use on battery-powered cars, toy cars, robots, etc., with a power supply voltage of 2V~10V. It can drive two DC motors or one 4-wire 2-phase stepping motor at the same time, which can realize the function of positive and reverse rotation and speed regulation. Each current can reach 1.5A continuous current, and the peak current can reach 2.5A. It has thermal protection and can recover automatically.
Product features:
1. It adopts imported original professional motor drive chip, built-in low conductivity internal resistance MOS switch tube, small heat generation, no heat sink, small size, power saving, and is your ideal choice for battery power supply.
2. Dual circuit 1.5A * 2, peak current up to 2.5A, built-in overheat protection circuit, without fear of motor locked-rotor burning ring, automatic recovery after temperature drop.
3. Small size, quality, 0 standby current.
Module parameters
Double-circuit H-bridge motor drive can drive two DC motors or one four-wire two-phase stepping motor at the same time;
Module power supply voltage 2V-10V
Signal terminal
Input voltage 1.8-7V
Single-circuit working current 1.5A, peak current up to 2.5A, low standby current (less than 0.1uA)
Built-in anti-common-state conduction circuit, when the input end is suspended, the motor will not misoperate;
Built-in overheat protection circuit (TSD) with hysteresis effect, no need to worry about motor lock-up;
Product size: 24.7 * 21 * 5mm (length, width and height), ultra-small size, suitable for assembly and vehicle;
Installation hole diameter: 2mm
Weight 5G
DC motor drive logic truth table
Inx is connected to single chip computer I0 or other signal sources, and MOTOR-A is connected to MOTOR-B to terminate the motor
![](https://ae01.alicdn.com/kf/Sd4ca4115cd7e4b06ba99d4ea850a3894E.png)
Note: "1" represents high level; "0" represents low level; "PWM" represents pulse width modulation wave, which adjusts the duty cycle to change the speed. IN1 and IN2 control DC motor A: IN3 and IN4 control DC motor B; The two ways are completely independent. The input terminal Inx has the function of preventing common-state conduction, which is equivalent to low-level input when it is suspended.
Wiring diagram
![](https://ae01.alicdn.com/kf/Sbb845e5db6da4b54ac0757e233ffab22z.png)
Independent drive of two DC motors;
INx is the control signal input terminal, and the signal voltage range is 1.8V-7V;
IN1 and IN2 control motor A, IN3 and IN4 control motor B.
matters needing attention:
1. The reverse connection between the positive and negative poles of the power supply will definitely cause circuit damage.
2. The chip will be thermally protected when the output is short-circuited to the ground or the output terminal is short-circuited, and the motor is blocked, but the chip will also be burned when the voltage is close to or more than 10V and the peak current is much more than 2.5A.
L298 motor drive module two-way
Product introduction
Double H-bridge, can drive two DC motors at the same time, single-circuit 7A high power, wide voltage 6.5V~27V; Optocoupler isolation input signal; With isolation and undervoltage protection; Comply with EMC design specifications for electromagnetic compatibility, with static discharge circuit. High-power double-circuit DC motor drive, stable and reliable, industrial grade.
connection
![](https://ae01.alicdn.com/kf/S4605cc16240b4bf3872f3a526e42f0f0n.png)
Note: The PWM generator can adjust the speed of two motors at the same time, and the GND at the signal end cannot share the ground with the PGND at the power supply end.
![](https://ae01.alicdn.com/kf/Sba4a437f6ad54f288846ceb17152a9b0d.png)
Product parameters
Power supply voltage: 6.5V-27V, the power supply must not be reversed or exceed 27V, otherwise the module may be burnt out. It is recommended to connect a 15A fuse in series at the power input end.
Two-way motor interface: the rated output current of each circuit is 7A, and the peak current is 50A. The motor interface must not be short-circuited. It is recommended to connect 10A fuse in series.
Control signal voltage: 3-6.5V, respectively enabling signal and positive and negative control signal.
Enable signal end: (ENA) input PWM can be adjusted, PWM frequency range is 0~10KHz, PWM limit is 10us.
Working temperature: - 25 ¡É~+80 ¡É
Product size: 55 * 55 * 16mm (length * width * height)
Installation hole diameter: 3mm. During installation, pay attention to prevent short circuit on the back circuit. Insulating pad or copper column can be added to raise the circuit board.
Weight: 20g
Motor parameters: for the motor with rated voltage of 24V, the motor with rated power of 115W and below or rated current of 7A and below shall be properly marked to work at full capacity for a long time.
For the motor with rated voltage of 12V, the motor with rated power of 40W and below or rated current of 7A and below shall be properly marked to work at full capacity for a long time.
Signal logic
Note: 0 bit is low level, 1 bit is high level, X bit is arbitrary level, and it is high level in the air.
![](https://ae01.alicdn.com/kf/S169fb97e0635443f946b80464b60a43a8.png)
matters needing attention
1. The driver power supply must not be connected reversely. It is recommended to connect a 15A fuse in series at the power interface, and the voltage should be between 6.5~27V. If the voltage is too high, the drive module may be burnt when powered on.
2. It is recommended that the rated output current of the power supply be more than 2 times of the rated current of the motor, so as not to cause the power supply to fail to provide the current required for the motor to start, resulting in the power supply voltage drop and the power supply voltage failing to meet the input voltage required by the driver, so that the drive module will conduct undervoltage protection to turn off the output and cause the motor to stop.
3. The motor interface must not be short-circuited, otherwise the drive module may be burned. It is recommended to connect a 10A fuse in series at the motor interface.
4. During the forward and reverse switching, it is necessary to brake for more than 0.1S before reversing. It is not allowed to reverse before the motor is stopped, otherwise the drive may be damaged.
5. When the drive module is powered off, do not directly or indirectly rotate the motor at high speed, or the electromotive force generated by the motor may burn the drive module. If the application needs to rotate the motor at high speed when the drive module is powered off, it is recommended to connect a relay (NO and COM terminals are connected in series) at the motor interface of the driver, and the relay coil shares power with the driver. In this way, when the power is off, the relay will disconnect the driver from the motor.
6. Note that the driver should not be affected by moisture, do not short-circuit the components on the driver board, and do not touch the pins and pads of the components on the board with your hands.
L298PÓÞ?×µá³??ÖØ?Ïõ??÷ù
The motor drive board can control two DC motors. Based on the L298P H-bridge chip, each drive current can be up to 2A. The VIN of the drive power supply and the main control board are the same. The on-board ED indicates the drive direction and speed. The drive line has a back electromotive force protection diode. It is a drive board with L298 H-bridge drive, mainly used to drive small DC motors. It allows you to use small current to control large current (directly drive the current of the motor).