UC3846 Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

UC3846

SMPS Controller

Fairchild Semiconductor 

UC3846

Td

OUTPUT DEADTIME(Td)

Figure 1. UC3846 Oscillator Circuit





Output deadtime is determined by the external capacitor, CT, according to the formula:

For large values of RT: Td (us) = l45CT (uF) Oscillator frequency is approximately

Td(us)=

145

CT(

µF

)









-1---2-----–-----R--1-------2T----3--(----.--K--6------Ω----------)

by

the formula:

fT(KHz)=

-----------------2----.-2-------------------

RT(KΩ)CT(µF)

Figure 2. Error Amplifier Output Configuration

5

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