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CS8147YT5 Datasheet(PDF) 6 Page - ON Semiconductor |
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CS8147YT5 Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 12 page CS8147 http://onsemi.com 6 DEFINITION OF TERMS Dropout Voltage – The input–output voltage differential at which the circuit ceases to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V input, dropout voltage is dependent upon load current and junction temperature. Current Limit – Peak current that can be delivered to the output. Input Voltage – The DC voltage applied to the input terminals with respect to ground. Input Output Differential – The voltage difference between the unregulated input voltage and the regulated output voltage for which the regulator will operate. Line Regulation – The change in output voltage for a change in the input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that the average chip temperature is not significantly affected. Load Regulation – The change in output voltage for a change in load current at constant chip temperature. Long Term Stability – Output voltage stability under accelerated life–test conditions after 1000 hours with maximum rated voltage and junction temperature. Output Noise Voltage – The rms AC voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Quiescent Current – The part of the positive input current that does not contribute to the positive load current. The regulator ground lead current. Ripple Rejection – The ratio of the peak–to–peak input ripple voltage to the peak–to–peak output ripple voltage. Temperature Stability of VOUT – The percentage change in output voltage for a thermal variation from room temperature to either temperature extreme. Figure 14. Typical Circuit Waveform 14 V 0 V 0 V 2.0 V 0.8 V VIN ENABLE VOUT1 VOUT2 60 V 10 V 5.0 V 31 V 10 V 5.0 V 3.0 V 5.0 V 5.0 V 26 V 10 V 5.0 V 0 V 0 V 10 V 5.0 V 0 V 0 V 10 V 5.0 V 14V 0 V 0 V Load Dump Low VIN Line Noise, Etc. VOUT Short Circuit Thermal Shutdown Turn Off Turn On Figure 15. Test & Applications Circuit VIN GND ENABLE VOUT1 VOUT2 Tuner IC Control C1* 0.1 µF C2** 10 µF 5.0V 10V * C1 is required if the regulator is located away from the power source filter. ** C2 is required for stability. |
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