Description
L293D Dual H‑Bridge Motor Driver – High‑Speed, High‑Current Control
The L293D is a compact dual H‑bridge IC designed to drive DC motors, stepper motors, and small inductive loads. With four independent motor outputs, it supports bidirectional motion control and smooth acceleration by providing full‑bridge drive capability. The device operates from a 4.5 V to 36 V supply, delivering up to 600 mA of continuous current per channel and a 1 A peak, making it ideal for low‑to‑mid‑power robotic applications.
Its on‑chip protection features—built‑in flyback diodes, over‑current, and thermal shutdown—ensure reliable operation under varying load conditions. The logic interface is fully CMOS compatible (up to 5 V), allowing seamless integration with microcontrollers, FPGA boards, or dedicated motor control logic. The L293D also offers high switching speed and minimal electrical noise, enabling precise motor control without extensive external circuitry.
- Current Rating: 600 mA continuous per channel (1 A peak per channel)
- Supply Voltage: 4.5 V to 36 V with optimal performance at 28 V
- On‑Chip Protection: Integrated flyback diodes, over‑current, and thermal shutdown
- Common Use Case: Low‑ to mid‑power robotics, conveyor belts, and door actuators requiring bidirectional motor control
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