DC Motor 6 Click

How does it work?

The main component of DC MOTOR 6 Click is the TB67H451AFNG, a PWM chopper-type brushed DC motor driver. This IC uses a proprietary BiCD manufacturing process, allowing this IC to be powered by a wide range of supply voltages, from 4.5 up to 44V. Due to a very low ON resistance of the MOSFETs, it can theoretically deliver up to 3A of current to the connected load. However, many external parameters affect both the maximum voltage and the current specifications, especially when the connected load is of a complex nature, such as the DC motor. In using TB67H451AFNG, the voltage should be applied to the pins of VM and VREF. The absolute maximum rating of VM supply voltage is 50V (no active). The usage range is 4.5 to 44V. The absolute maximum rating of VREF supply voltage is 5V. The usage range is 0 to 4V.

There are no special procedures of inputting a power supply and shutdown because the TB67H451AFNG incorporates the under voltage lockout (UVLO). However, under the unstable state of inputting the power supply (VM) and shutdown (transient area), setting the motor operation to OFF state is recommended. After the power supply is in the stable state, the motor should be operated by switching the input signal.The absolute maximum rating of motor output current is 3.5A. Its operating range is 3A or less. The maximum current of the actual usage is limited depending on the usage conditions (the ambient temperature, the wiring pattern of the board, the radiation path, and the exciting design). Configure the most appropriate current value after calculating the heat and evaluating the board under the operating environment.

This IC controls a motor operation by PWM constant current control. The peak current value (setting current value) can be determined by settings of the current-sensing resistor (R2) and the reference voltage (Vref). When both IN1 and IN2 pins are set to L for 1 ms (typ.) or more, the operation mode enters into the standby mode. When IN1 or IN2 is set to H, the mode returns from the standby mode, and enters to the operation mode.

The tBLK is intended to avoid inrush current detection. The TB67H451AFNG not only can be controlled by constant current PWM, but also by direct PWM; with IN control signals.

When the supply voltage to VM pin is 3.8V or less, the internal circuit is triggered; the internal reset circuit then turns off the output transistors. Once the UVLO is triggered, it can be cleared by reasserting the VM supply voltage to 4.0V or more (typ.)

Specifications

Pinout diagram

This table shows how the pinout on DC Motor 6 Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
Ctrl IN 1	IN1	1	AN	PWM	16	NC
Ctrl IN 2	IN2	2	RST	INT	15	NC
	NC	3	CS	RX	14	NC
	NC	4	SCK	TX	13	NC
	NC	5	MISO	SCL	12	NC
	NC	6	MOSI	SDA	11	NC
	NC	7	3.3V	5V	10	5V	Power Supply
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

DC Motor 6 Click electrical specifications

Software Support

We provide a library for the DC Motor 6 Click on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Library Description

The library contains functions for working with a DC Motor 6 click.

Key functions:

• void dcmotor6_set_direction( uint8_t dir ) – Set motor Direction

Examples description

The application is composed of three sections :

• System Initialization – Initializes all necessary gpio pins
• Application Initialization – Initializes driver init
• Application Task – Set the motor direction in clockwise and Counte clockwise direction.

void application_task ( )
{
    dcmotor6_set_direction( DCMOTOR6_MOTOR_DIR_CCW );
    Delay_ms( 2000 );
    dcmotor6_set_direction( DCMOTOR6_MOTOR_STOP );
    Delay_ms( 2000 );
    dcmotor6_set_direction( DCMOTOR6_MOTOR_DIR_CW );
    Delay_ms( 2000 );
    dcmotor6_set_direction( DCMOTOR6_MOTOR_STOP );
    Delay_ms( 2000 );
}

The full application code, and ready to use projects can be found on our LibStock page.

Other mikroE Libraries used in the example:

• GPIO

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

mikroSDK

This Click board™ is supported with mikroSDK – MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.

For more information about mikroSDK, visit the official page.