UC2843B Ver la hoja de datos (PDF) - Unisonic Technologies

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UC2843B

HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

Unisonic Technologies 

UC2843B

LINEAR INTEGRATED CIRCUIT

 APPLICATION INFORMATION (Cont.)

Shutdown Technique (cont.)

A fraction of the triangular-wave oscillator can be summed resistively with the current-sense signal providing

slope compensation for converters, which requiring duty cycles over 50%. Please note that capacitor C forms a filter

with R2 to suppress the leading-edge switch spikes.

VREF

0.1µ F

RT

RT/CT

ISENSE

CT

R1

R2

C

ISENSE

RSENSE

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

8 of 9

QW-R103-048.E

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