UC2844, UC2845 Datasheet - Unisonic Technologies

UC2844 - HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

The UTC UC2844/2845 are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count. The differences between UC2844 and UC2845 are the maximum duty cycle ranges and under-voltage lockout thres.

UC2844 Features

* Operation output switching frequency up to 500 kHz

* Output deadtime adjustable from 50% to 70%

* Automatic feed forward compensation

* Latching PWM for cycle-by-cycle current limiting

* High current totem pole output

* Internally trimmed reference with under voltage locko

UC2845-UnisonicTechnologies.pdf