DRV8833 vs L298N vs TB6612FNG: Which Motor Driver Should You Use?

Choosing a motor driver depends on your motor’s voltage, current draw, heat dissipation and available power supply. The L298N is a familiar option for many 6–12V hobby motor projects, the DRV8833 suits compact, low-voltage robots, and the TB6612FNG is a more efficient MOSFET-based alternative for small DC motors. For a single-cell LiPo robot, the DRV8833 is often a good starting point; for larger motors, compare the driver’s actual current and thermal limits before choosing.

This guide compares the DRV8833 dual-channel DC motor driver with the L298N and TB6612FNG, including voltage ranges, current limits, heat, Arduino wiring and practical use cases.

Quick Verdict: Which Motor Driver Is Best?

For most small line followers and compact battery-powered robots, start by comparing the DRV8833 and TB6612FNG. Choose the L298N when its voltage range and module features suit your build—not simply because it is familiar.

DRV8833 vs L298N vs TB6612FNG: Specifications Compared

The table below compares common breakout modules, not just the driver ICs. Ratings vary with the board layout, cooling, supply voltage and operating conditions.

The DRV8833's listed Robocraze module supports 2.7–10.8V and up to 1.2A continuous per channel, with a 2A peak rating. The TB6612FNG supports about 1.2A continuous per channel and a 3.2A peak rating. The common L298N module is listed for 5–35V motor supplies and up to 2A, but it loses more voltage and can generate substantially more heat. Actual current capability depends on the board and thermal conditions.

Robocraze

+4

Price comparison in India

These are product-page price snapshots observed during research, not guaranteed checkout prices. Prices and stock can change.

The L298N listing showed a sold-out status when checked, so verify availability before choosing it. The cheapest board is not necessarily the best value: consider motor efficiency, voltage drop, heat, cooling requirements and the current your motors actually draw.

Robocraze

+2

L298N vs MOSFET Drivers: Why Efficiency Matters

The L298N uses bipolar transistor output stages, while the DRV8833 and TB6612FNG use MOSFET-based H-bridges. This difference affects how much of the supply voltage reaches the motor and how much power the driver converts into heat.

L298N: Familiar, but less efficient

The L298N is popular in educational robotics because many modules include screw terminals, a heatsink, clear pin labels and convenient speed-control inputs. Its higher motor-supply voltage range can also be useful for certain hobby builds.

Its main drawback is the voltage drop across its output transistors. The motor may receive noticeably less voltage than the supply provides, and the lost power becomes heat. This can reduce motor speed and battery efficiency, especially in low-voltage projects.

DRV8833: Compact and suitable for low-voltage builds

The DRV8833 is designed for lower-voltage motor control. Its MOSFET output stage generally wastes less power than the L298N, making it a good fit for compact robots using small DC motors and 1-cell or 2-cell LiPo batteries, provided the voltage and current stay within the driver's limits.

The IC includes protection features such as overcurrent, undervoltage and overtemperature protection. However, protection does not make the driver immune to excessive load current or poor thermal design.

TI.com

+1

TB6612FNG: An efficient alternative

The TB6612FNG is also a MOSFET-based dual motor driver. It provides independent motor control, PWM speed inputs and a standby pin. It is often a strong alternative to the L298N for small robots where reducing heat and wasted battery power matters.

The DRV8833 and TB6612FNG are similar in broad application, but their supply ranges, pinouts and current ratings are not identical. Choose based on the exact motor, battery and breakout-board specification rather than assuming either is universally better.

Robocraze

+1

Wiring a DRV8833 to Arduino

The DRV8833 can control two brushed DC motors independently. Each motor uses two output terminals, and the microcontroller controls direction and speed through the driver’s input pins.

A common breakout exposes the following connections, though labels vary by board.

Connect the motor battery to the driver’s motor supply input, connect the motor leads to the output terminals, and connect the Arduino control pins to the corresponding input pins. The Arduino and motor driver must share a common ground. Follow your particular breakout’s labels, especially for sleep and fault pins.

Example Arduino code

This example runs motor A in one direction, stops it, and then runs it in the opposite direction. It assumes your breakout uses AIN1 and AIN2 as the two control inputs and does not require a separate sleep pin to be enabled.

const int AIN1 = 5;
const int AIN2 = 6;

void setup() {
  pinMode(AIN1, OUTPUT);
  pinMode(AIN2, OUTPUT);
}

void loop() {
  // Forward
  digitalWrite(AIN1, HIGH);
  digitalWrite(AIN2, LOW);
  delay(2000);

  // Stop / coast
  digitalWrite(AIN1, LOW);
  digitalWrite(AIN2, LOW);
  delay(1000);

  // Reverse
  digitalWrite(AIN1, LOW);
  digitalWrite(AIN2, HIGH);
  delay(2000);

  // Stop / coast
  digitalWrite(AIN1, LOW);
  digitalWrite(AIN2, LOW);
  delay(1000);
}

This is a basic direction-control example. To vary speed, use PWM on a supported input and confirm the breakout's truth table. Some driver states produce braking rather than coasting, so check the datasheet if the stopping behaviour matters.

How to Choose a Motor Driver for Your Robot

Before buying a driver, check the motor's rated voltage and its stall current—the current drawn when the shaft is prevented from turning. Startup current can approach stall current, so a motor that normally draws 300mA may need much more current momentarily.

Use this decision checklist:

1. Check the motor voltage. The driver's motor-supply range must cover your battery voltage throughout its operating and charging range.

2. Check continuous current. Compare the motor's expected operating current with the driver's per-channel continuous rating under realistic cooling conditions.

3. Check stall current. Make sure the driver can tolerate the startup and stall conditions your design may encounter, or use current limiting and suitable protection.

4. Consider heat. An efficient MOSFET driver may be preferable for a battery-powered robot that runs for long periods.

5. Confirm logic compatibility. Make sure the driver accepts the Arduino or ESP32's logic voltage.

6. Check the pinout and features. Standby pins, fault outputs, PWM requirements and board layout vary.

7. Choose for the real load. Do not use a motor driver's peak current rating as if it were a continuous rating.

For a typical small robot, start by comparing the DRV8833 motor driver and TB6612FNG motor driver. If your motors exceed their current limits, move to a driver designed for that load rather than relying on a peak-current number.

For a practical example of motor drivers in a complete robot, see Build a Line-Follower Robot Using Robocraze Parts. You can also read the motor driver guide for a broader explanation of H-bridges, speed control and motor-driver selection.

Conclusion

The DRV8833, L298N and TB6612FNG can all control two DC motors, but they suit different projects. The L298N supports higher motor-supply voltages on common modules, although its larger voltage drop and heat loss can make it less suitable for efficient low-voltage builds. The DRV8833 is a strong option for compact battery-powered robots, while the TB6612FNG offers efficient motor control with a dedicated standby input.

For most small line followers and DIY robots, compare the DRV8833 and TB6612FNG first. If your motor requires more current than either can safely provide, select a higher-rated driver based on stall current and thermal performance—not peak current alone.

The DRV8833 2 Channel DC Motor Driver is a practical starting point for low-voltage robotics, provided your motors fit its voltage and current limits.