Product Summary

The uaa145 is a bipolar integrated circuit, designed to provide phase control for industrial applications. The uaa145 permits the number of components in thyristor drive circuits to be drastically reduced. Applications of the uaa145 include: Industrial power control and Silicon controlled rectifier.

Parametrics

uaa145 absolute maximum ratings: (1) Positive supply voltage Vs: 18V; (2) Shift voltage: 5V; (3) Reverse voltage, control input -VRI: 15V; (4) Negative supply curre -IS: 25mA; (5) Negative supply current ±Isync: 20mA; (6) Control input pulse current Ii: 5mA; (7) Control input pulse current Io: 20mA; (8) Total power dissipation Tamb≤70°C Ptot: 550mW; (9) Junction temperature Tj: 125°C; (10) Junction temperature Tamb: -25 to 70°C; (11) Storage temperature range Tstg: -25 to +125°C.

Features

uaa145 features: (1) Separate pulse output synchronized by mains half wave; (2) Output pulse-width is freely adjustable; (3) Phase angle variable from >0 to <180°; (4) High-impedance phase shift input; (5) Less than 3° pulse symmetry between two half-cycles or phase of different integrated circuits; (6) Output pulse blocking.

Diagrams

uaa145 block diagram

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