555 ESTAVEL

216

07:55:12

Oscilador 555 - Estável

F = Min = 0 / F = Max 500KHz

Ra e Rb não pode ser menor que 1kOhms.
Valores Típicos dos capacitores esta entre 100pF e 1500 uF.
Corrente Máxima de saída PIN3 de até 200 mA mas com carga indutivas é interessante usar um circuito drive.
TH = Ln(2) * (R1+R2) * C
TL =  Ln(2) * R2 * C
f = 1 / período = 1 / (Ln(2) * C * (R1 *2* R2)

published 2 years ago

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