SLE4520

The SLE4520 is a kind of pulse-width modulator. It converts an 8-bit data word into a rectangular signal of corresponding width. Three independently operating channels consisting of a latch, loadable counter and zero detector are used for this purpose.

There are some features SLE4520 as follows: (1)digital singe synthesis for controlling the speed and torque of three-phase motors; (2)2-chip solution (e.g. SAB 8051 with SLE 4520) for easy configuration of a powerful frequency converter; (3)motor frequencies from 0 to 3 kHz selectable at a switching frequency up to 23.4 kHz; (4)adaptation to different output stages through programmable dead time; (5)functional and performance features determined by dedicated software.

The following is about the absolute maximum ratings SLE4520: (1)supply voltage, VDD: -0.3 to 6 V; (2)input voltage, VI: -0.3 to VDD+0.3 V; (3)storage temperature, Tstg: -50 to 125 ; (4)total power dissipation, Ptot: 500 mW; (5)power dissipation per output, PO: 50 mW.