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"