This 5 V HCMOS integrated circuit is intended primarily for application in three-phase, sinusoidally commutated brushless motor, induction motor, AC servomotor or UPS PWM modulator control systems. It injects the required deadtime to convert a single phase leg PWM command into the two separate logic signals required to drive the upper and lower semiconductor switches in a PWM inverter. It also provides facilities for output disable and fast overcurrent and fault condition shutdown.

Features

• 5 V HCMOS logic implementation maintains low power at high speed

• Schmitt trigger inputs and CMOS logic levels improve noise immunity

• Simultaneously injects equal dead-time in up to three output phases

• Replaces 10-12 standard SSI/MSI logic devices

• Allows a wide range of PWM modulation strategies

• Directly drives high speed optocouplers

Applications

• 1- and 3- Phase Motion Controls

• 1- and 3- Phase UPS Systems

• General Power Conversion Circuits

• Pulse Timing and Waveform Generation

• General Purpose Delay and Filter

• General Purpose Three Channel One Shot