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CS8281YDP5 Datasheet(PDF) 3 Page - Cherry Semiconductor Corporation |
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CS8281YDP5 Datasheet(HTML) 3 Page - Cherry Semiconductor Corporation |
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3 / 6 page  Definition of Terms 3 VIN ENABLE VOUT 1 System Condition 60V 3V 2.4V 5V 0V Turn On Load Dump Low VIN Line Noise, Etc. VOUT2 Short Circuit Thermal Shutdown Turn Off 5V 0V 14V 5V 2.0V 0.8V 14V 26V 31V 5V 5V 2.4V 5V 5V 5V 0V VOUT 2 5V 5V 0V 5V VOUT 1 Short Circuit 0V 5V 5V Typical Circuit Waveform PACKAGE LEAD # LEAD SYMBOL FUNCTION Package Lead Description 5 Lead D2PAK 1VIN Supply voltage to IC, usually direct from battery. 2VOUT1 5V regulated output which is activated by ENABLE input. 3 Gnd Ground connection. 4VOUT2 Standby output 5V, 100mA capability; always on. 5 ENABLE CMOS compatible input lead; switches VOUT1. When ENABLE is high, VOUT1 is active. Current Limit Peak current that can be delivered to the output. Dropout Voltage The input-output voltage differential at which the circuit ceases to regulate against further reduction in input volt- age. Measured when the output voltage has dropped 100mV from the nominal value obtained at 14V input, dropout voltage is dependent upon load current and junc- tion temperature. Input Output Differential The voltage difference between the unregulated input volt- age and the regulated output voltage for which the regula- tor will operate. Input Voltage The DC voltage applied to the input terminals with respect to ground. 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 condi- tions after 1000 hours with maximum rated voltage and junction temperature. Quiescent Current The part of the positive input current that does not con- tribute to the positive load current. i.e., 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. Short Circuit Current Limit Peak current that can be delivered by the output when forced to 0V. Temperature Stability of VOUT The percentage change in output voltage for a thermal varia- tion from room temperature to either temperature extreme. |
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