FM7021LB Micro H-Bridge DC Motor Driver (SOT23-6)

Drive small brushed DC motors, linear actuators, and voice coil motors (VCM) with absolute precision using the FM7021LB micro H-bridge driver. When designing ultra-compact robotics, custom micro-servos, or payload release mechanisms for drones, traditional motor drivers (like the L298N) are simply too heavy and bulky. This highly integrated IC solves that problem by packing a full bidirectional motor controller into a microscopic SOT23-6 footprint, allowing you to easily spin motors forward, backward, or brake them instantly using standard logic signals from any microcontroller.

Optimized for low-voltage systems, it perfectly bridges the gap between your 3.3V or 5V logic (STM32, ESP32, Arduino) and mechanical hardware. Despite its tiny size, it features a low saturation voltage, ensuring maximum power is delivered to the motor rather than being wasted as heat. With built-in thermal protection and an incredibly low standby current, the FM7021LB is the ultimate space-saving solution for battery-powered mechanical DIY projects and smart locks.

Key Features:

• Micro H-Bridge Topology: Provides full bidirectional control (Forward, Reverse, Brake, Coast) over small brushed DC motors or actuators.

• Space-Saving Design: The ultra-compact SOT23-6 package requires virtually no PCB space, making it perfect for embedding inside micro-servos or tiny mechanical housing.

• Logic Level Compatible: Easily controlled by standard 3.3V and 5V logic signals without the need for additional level shifters or pull-up resistors.

• Low Standby Current: Draws almost zero current when inactive, perfectly preserving the battery life of portable IoT devices and wireless mechanisms.

Specifications:

• Part Number: FM7021LB

• IC Type: Single-Channel DC Motor Driver (H-Bridge)

• Control Modes: Forward, Reverse, Brake, Stop

• Protections: Built-in Thermal Shutdown

• Package Type: SOT23-6 (SMD/SMT)