KAmod Motor Driver TB6612FNG

Description

KAmod Motor Driver TB6612FNG - Dual DC Motor Driver

The KAmod Motor Driver TB6612FNG is a versatile, powerful, and easy-to-use motor driver module that allows for precise control of two DC motors (or one stepper motor) in terms of direction and speed, while also offering protection and a low-power mode. It is an ideal alternative to L298N-based modules.
The TB6612FNG integrated circuit, developed by Toshiba, contains two independent H-bridges using MOSFET transistors. Each H-bridge can control one DC motor. The module allows for controlling DC motors with a voltage ranging from 4.5 to 13.5 V (VM). The integrated circuit's logic circuits (VCC) should be powered with a voltage between 2.7 and 5.5 V. The TB6612FNG can deliver a continuous current of up to 1.2 A per channel. The peak transient current can be up to 3.2 A. If you need more current for a single motor, you can connect both channels (outputs and control inputs), obtaining up to 2 A of continuous current.

Basic Features and Parameters

• Motor Voltage (VM): 4.5 - 13.5 V
• Logic Voltage (VCC): 2.7 - 5.5 V
• Continuous Output Current: 1.2 A per channel
• Instantaneous Output Current: 3.2 A per channel
• Maximum PWM Frequency: 100 kHz
• Standby Mode
• Built-in Thermal Shutdown Circuit (TSD)
• Undervoltage Lockout (UVLO) Protection
• Built-in Filter Capacitors on the Motor (VM) and Logic (VCC) Power Lines
• LEDs Indicating Voltage on the Motor (VM) and Logic (VCC) Power Lines
• Connector Spacing: 20.32 mm (0.8 inch)
• Pin Pitch: 2.54 mm (0.1 inch)
• PCB dimensions: 22.86 x 25.4 mm

Standard Equipment

Code	Description
KAmod Motor Driver TB6612FNG	Assembled and powered-up module 2 x straight 8-pin goldpin header, 2.54 mm pitch

'Schematic

Motor Control

Each motor is controlled using two input signals (IN1 and IN2), which allow for the selection of one of four functional modes:

• Clockwise rotation (CW)
• Counterclockwise rotation (CCW)
• Short brake
• Slow stop (Stop / High impedance)

The two motor outputs (A and B) can be controlled separately, and the speed of each motor can be controlled using a PWM input signal with a frequency of up to 100 kHz. To bring the controller out of sleep mode, a high level must be applied to the STBY' (STANDBY) input. A low level (default) puts the system into sleep mode (low power consumption).

A(B)IN1	A(B)IN2	PWMA(B)	A(B)O1	A(B)O2	Action
H	H	H/L	L	L	Short brake
L	H	H	L	H	Counterclockwise rotation (CCW)
L	H	L	L	L	Short brake
H	L	H	H	L	Clockwise rotation (CW)
H	L	L	L	L	Short brake
L	L	H	OFF	OFF	Slow Stop (Stop / High Impedance)

An example of connecting motors with a common supply of VCC and VM can be found in the figure below:

An example of connecting the motors with separate power supplies for VCC and VM is shown in the figure below:

Indicator LEDs

The module is equipped with two LEDs: PWR VCC and PWR VM, which indicate the presence of each supply voltage.

Dimensions

The KAmod Motor Driver TB6612FNG board measures 22.86 x 25.4 mm. The pin spacing is 20.32 mm (0.8 inch), and the pin pitch is 2.54 mm (0.1 inch).

Links

• Datasheet of the TB6612FNG system
• CAD model (STEP)