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SG2524D Datasheet(PDF) 3 Page - Texas Instruments |
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SG2524D Datasheet(HTML) 3 Page - Texas Instruments |
3 / 24 page SG2524, SG3524 REGULATING PULSEWIDTH MODULATORS SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions MIN MAX UNIT VCC Supply voltage 8 40 V Reference output current 0 50 mA Current through CT terminal –0.03 –2 mA RT Timing resistor 1.8 100 k Ω CT Timing capacitor 0.001 0.1 µF TA Operating free air temperature SG2524 –25 85 °C TA Operating free-air temperature SG3524 0 70 °C electrical characteristics over recommended operating free-air temperature range, VCC = 20 V, f = 20 kHz (unless otherwise noted) reference section PARAMETER TEST CONDITIONS† SG2524 SG3524 UNIT PARAMETER TEST CONDITIONS† MIN TYP‡ MAX MIN TYP‡ MAX UNIT Output voltage 4.8 5 5.2 4.6 5 5.4 V Input regulation VCC = 8 V to 40 V 10 20 10 30 mV Ripple rejection f = 120 Hz 66 66 dB Output regulation IO = 0 mA to 20 mA 20 50 20 50 mV Output voltage change with temperature TA = MIN to MAX 0.3% 1% 0.3% 1% Short-circuit output current§ Vref = 0 100 100 mA † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C § Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: s + N n +1 (xn * X)2 N * 1 oscillator section PARAMETER TEST CONDITIONS† MIN TYP‡ MAX UNIT fosc Oscillator frequency CT = 0.001 µF, RT = 2 kΩ 450 kHz Standard deviation of frequency§ All values of voltage, temperature, resistance, and capacitance constant 5% ∆f Frequency change with voltage VCC = 8 V to 40 V, TA = 25°C 1% ∆fosc Frequency change with temperature TA = MIN to MAX 2% Output amplitude at OSC OUT TA = 25°C 3.5 V tw Output pulse duration (width) at OSC OUT CT = 0.01 µF, TA = 25°C 0.5 µs † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values, except for temperature coefficients, are at TA = 25°C § Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: s + N n +1 (xn * X)2 N * 1 |
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