TL494M PULSE-WIDTH-MODULATION CONTROL CIRCUIT

TL494MPULSE-WIDTH-MODULATION CONTROL CIRCUITSGLS041A – D3883, SEPTEMBER 1991 – REVISED MAY 1993TYPICAL CHARACTERISTICSOscillator Frequency – Hz100 k40 k10 k4 k1 k40010040OSCILLATOR FREQUENCY ANDFREQUENCY VARIATION †vsTIMING RESISTANCE–2%–1%CT = 1 µF0%0.1 µF0.01 µFVCC = 15 VTA = 25°C0.001 µF∆f† = 1%101 k 4 k 10 k 40 k 100 k 400 k 1 MRT – Timing Resistance – Ω† Frequency variation (∆f) is the change in oscillator frequency that occurs over the full temperature range.Figure 51009080AMPLIFIER VOLTAGE AMPLIFICATIONvsFREQUENCYVCC = 15 V∆VO = 3 VTA = 25°CVoltage Amplification – dB7060504030201001 10 100 1 k 10 k 100 k 1 Mf – Frequency – HzFigure 6Printed 8 in U.S.A.POST OFFICE BOX 655303 • DALLAS, TEXAS 75265SGLS041A