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L9110S 4-Channel Dual H-Bridge DC Motor Driver Module 2.5–12V 800mA
L9110S 4-Channel Dual H-Bridge DC Motor Driver Module 2.5–12V 800mA
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L9110S 4-Channel Dual H-Bridge DC Motor Driver Module — 2.5–12V / 800mA
The L9110S motor driver module integrates two L9110S H-bridge driver ICs, providing 4 independent output channels to control 2 DC motors bidirectionally. With a supply range of 2.5V–12V and 800mA per channel, it is the compact, low-cost solution for Arduino robot cars, line-following robots, and dual-motor embedded systems.
Key Specifications
| Parameter | Value |
|---|---|
| Driver IC | 2× L9110S (HG7881) |
| Supply Voltage | 2.5V – 12V DC |
| Output Current (per channel) | 800mA continuous (1.5A peak) |
| Number of Channels | 4 (controls 2 motors) |
| Motor Control | Bidirectional (forward/reverse per motor) |
| PWM Speed Control | Yes (via IA/IB input pins) |
| Logic Input Voltage | 2.5V – 12V (same as supply) |
| Built-in Protection | Thermal shutdown, overcurrent |
| Module Size | ~28 × 21mm |
Motor Control Truth Table (per motor)
| IA | IB | Motor Action |
|---|---|---|
| HIGH | LOW | Forward |
| LOW | HIGH | Reverse |
| LOW | LOW | Coast (stop) |
| HIGH | HIGH | Brake |
Why Choose L9110S Module?
- Dual Motor Control — Controls 2 DC motors independently with direction and PWM speed
- 2.5V–12V Supply — Works with 3.7V LiPo, 5V USB, 6V AA pack, and 12V DC
- 800mA Per Channel — Suitable for small to medium DC gear motors (TT motors, N20)
- Ultra-Compact — 28×21mm footprint; smallest dual motor driver in its class
- PWM Compatible — Connect Arduino PWM pins for variable speed control
Typical Applications
- Arduino 2WD/4WD robot car motor control
- Line-following robot differential drive
- Obstacle-avoidance robot motor driver
- Small conveyor belt and actuator control
- RC car motor driver replacement
- Dual-axis camera gimbal motor control
Arduino Wiring Example
Motor A: IA→pin 5 (PWM), IB→pin 6 (PWM). Motor B: IA→pin 9 (PWM), IB→pin 10 (PWM).analogWrite(5, 200); digitalWrite(6, LOW); // Motor A forward at ~78% speed
FAQ
Q: Can L9110S module drive stepper motors?
A: Not directly — it lacks the sequencing logic for stepper control. Use ULN2003 + 28BYJ-48 or A4988 for stepper motors.
Q: What’s the difference between L9110S and L298N?
A: L9110S is smaller, lower current (800mA vs 2A), and lower voltage (12V vs 46V). L298N suits higher-power motors; L9110S suits small robot motors.
Package Contents
- 1× L9110S 4-Channel Dual H-Bridge Motor Driver Module
