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.

特性 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