L293D Dual H-Bridge Motor Driver IC 16-Pin DIP for Arduino & Robotics
Key Highlights
- ✓Dual H-bridge driver (controls up to two motors simultaneously) Enables bidirectional control (forward / reverse) of DC motors High-voltage / high-current capability, suitable for inductive loads Separate logic supply and motor supply pins Internal clamp diodes for inductive transient suppression Thermal shutdown protection High noise immunity on inputs Enable pins to turn each half-bridge channel on/off Compatible with TTL / CMOS logic levels
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Here are key electrical specifications drawn from datasheets
Parameter Value / Range Notes / Conditions Supply Voltage (VCC for motors, VCC2) 4.5 V to 36 V Motor / load supply range for L293D ALLDATASHEET +2 STMicroelectronics +2 Logic Supply (VCC1) ~ 4.5 V to 5 V (or compatible with TTL) Logic side supply, separate from motor supply ALLDATASHEET +1 Continuous Output Current per Channel 600 mA Up to 600 mA per channel in normal operation STMicroelectronics +2 SparkFun +2 Peak (Non-Repetitive) Output Current 1.2 A For short bursts / peaks STMicroelectronics +1 Logic “0” Input Voltage Tolerance Up to 1.5 V The input “low” threshold can go up to that, giving some noise margin ALLDATASHEET +1 Maximum Switching Frequency Up to ~5 kHz Suitable for PWM up to this range STMicroelectronics +1 Propagation / Transition Times ~ 200 ns to ~ 750 ns (various) Times vary per input/output transitions SparkFun +2 hades.mech.northwestern.edu +2 Protection Features Thermal shutdown, internal clamp diodes Helps protect device under fault / overload conditions STMicroelectronics +1 Mounting / Package 16-pin DIP (common) Through-hole version commonly used