L298N Motor
Features:
Module name:dual H bridge motor drive module
Work mode:H bridge drive (double road)
Main control chip:L298N
Logical voltage:5V
Drive voltage:5v-35v
Logical current:0mA-36mA
Driving current:2A(MAX single bridge)
Storage temperature :- 20 ℃ to + 135 ℃
Maximum power: 25W
Weight: 30 g
Peripheral dimensions : 43*43*27mm
Product features:
This module USES L298N as the main drive chip, with strong driving ability, low heat and strong anti-interference ability.
Through this module can use the built-in 78 m05 drive power supply parts of their work, but in order to avoid the voltage regulator chip damage, when using the driving voltage is greater than 12 v, please use the external power supply 5 v logic.
This module USES a large capacity filter capacitance, a continuation protection diode, can improve reliability.
Notes:
1. When you are driving voltage (above logo for the 12 v input, can actually accept input range is 7 to 12 v) for 7 v to 12 v, can make to onboard power supply 5 v logic, when using the onboard after 5 v power supply, interface of + 5 v
The power supply does not input voltage, but can yield 5V voltage for external use.
2. When the driving voltage is higher than 12V, it is less than or equal to 24V
(the chip manual proposes to support 35V, but according to the book
When the maximum voltage is applied to the maximum voltage of 298 conservative applications to 24V, for example, the motor with a rated voltage of 18V shall be driven.
You must first remove the board 5V output to enable the jumper cap. Then 5V is accessed outside the 5V output port
The 5V enables the power to be a control signal with a level of 5V. When the signal input is valid, and when the power supply is normal in the motor drive module, the motor drive module outputs the current. Otherwise, even if the power supply is normal, there is no current on the motor.
Voltage to L298N internal logic circuit power supply. (this is a high-pressure, unconventional app!)
PWM Module
Product parameters:
Dual H-bridge motor drive, you can drive two DC motors or a four-wire two-phase stepper motor;
Module supply voltage 2V-10V;
Signal input voltage 1.8-7V;
Single - channel operating current of 1.5A, the peak current up to 2.5A, low standby current (less than 0.1uA);
Built-in anti-co-state conduction circuit, the input is vacant, the motor will not malfunction;
Built-in thermal protection circuit with hysteresis (TSD), no need to worry about the motor stall;
Product size: 24.7 * 21 * 5mm (LWH), ultra-small size, suitable for assembly and automotive;
Mounting hole diameter: 2 mm.
INx connected to the microcontroller IO or other signal source, MOTOR-A and MOTOR-B terminating motor
Product Highlights:
Imported original professional motor-driven chip, built-in low-resistance MOS switch, low heat, no heat sink, small size, power, your battery is ideal for power supply.
(L298N internal transistor switch, low efficiency, high heat, to be heat, bulky, very easy to burn on the market L298N, are not using the original chip, the product can be a perfect alternative.
Dual 1.5A * 2, the peak current to 2.5A, built-in thermal protection circuit, do not be afraid of the motor stall burned out, the temperature dropped automatically restored. (Currently on the market of intelligent car voltage and current are in this range)
Small size, light weight, 0 standby current, is the ideal model for your car
Precautions:
Positive and negative power supply reversed will certainly cause circuit damage.
Output short circuit to the ground or output short circuit, and the motor stall case, the chip will be thermal protection, but close to or exceed 10V voltage and peak current of more than 2.5A cases will also cause the chip burned.
