DESCRIPTION
The Device is a monolithic integrated high volt-age, high current four channel driver designed toaccept standard DTL or TTL logic levels and driveinductive loads (such as relays solenoides, DCand stepping motors) and switching power tran-sistors.To simplify use as two bridges each pair of chan-nels is equipped with an enable input. A separatesupply input is provided for the logic, allowing op-eration at a lower voltage and internal clamp di-odes are included.This device is suitable for use in switching appli-cations at frequencies up to 5 kHz. The L293D is assembled in a 16 lead plasticpackaage which has 4 center pins connected to-gether and used for heatsinkingThe L293DD is assembled in a 20 lead surfacemount which has 8 center pins connected to-gether and used for heatsinking.