Description
Product Overview
The DC 5V L9110 Dual-Channel Motor Driver Module is a compact, high-efficiency H-bridge driver board designed for controlling two small DC motors or a single 4-wire bipolar stepper motor . Built around the popular L9110S motor driver IC, this module integrates two independent H-bridge circuits into a tiny footprint, allowing you to independently control the speed and direction of two DC motors .
This module is a favorite among hobbyists and professionals for smart car projects, DIY robots, and small automation systems . It offers a simple control interface: use standard PWM (Pulse Width Modulation) signals for speed control and standard digital outputs (High/Low) to change the motor’s direction . The control logic is straightforward, with all critical signal pins broken out to easy-to-use 2.54mm headers.
One of the biggest advantages of this module is its miniaturized size. The board measures approximately 27mm × 20mm, making it ideal for portable and space-constrained applications . Despite its small footprint, it features built-in flyback diodes for protection against motor-induced voltage spikes, ensuring the stability and longevity of your main control circuit . Whether you are building a line-follower robot or a wireless smart car, this driver provides the essential drive power you need.
Key Features
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Dual Channel H-Bridge: Two independent H-bridge channels that can control two DC motors (bidirectional) or one 4-wire stepper motor simultaneously .
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5V Power Supply: Designed to operate with a 5V DC power supply (2.5V–12V range, optimized for 5V systems), compatible with Arduino and USB power sources .
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3A Peak Current Output: Each channel supports a continuous current of up to 800mA (0.8A) , with a peak current capability of up to 2.5A .
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PWM & Direction Control: Supports PWM for smooth speed regulation and standard digital logic for motor direction control .
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Built-in Protection Diodes: Onboard flyback diodes suppress reverse currents generated by the motor, protecting the IC from damage .
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Simple Pin Interface: 4 control pins (A-IA, A-IB, B-IA, B-IB) and 4 motor output terminals (Motor A/B) .
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Compact Size: Extremely small board dimension, fitting perfectly into small robotic chassis .
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Operating Voltage | 5V DC (2.5V – 12V range) |
| Continuous Output Current (Per Channel) | 800mA / 1.0A |
| Peak Output Current (Per Channel) | 2.5A |
| Number of Channels | 2 (Independent) |
| Control Logic Level | 3.3V / 5V (TTL/CMOS Compatible) |
| Speed Control Method | PWM (Pulse Width Modulation) |
| Standby Current | < 1µA |
| Operating Temperature | -20°C to +80°C |
| Dimensions | Approx. 27mm × 20mm × 14mm |
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