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NCP1081 Datasheet(PDF) 10 Page - ON Semiconductor |
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NCP1081 Datasheet(HTML) 10 Page - ON Semiconductor |
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NCP1081 http://onsemi.com 10 Table 3. OPERATING CONDITIONS Symbol Parameter Min. Typ. Max. Units Conditions CURRENT CONSUMPTION IvportP1 VPORTP internal current consumption (Note 12) − 2.5 3.5 mA DC−DC controller off IvportP2 VPORTP internal current consumption (Note 13) − 4.7 6.5 mA DC−DC controller on THERMAL SHUTDOWN TSD Thermal shutdown threshold 150 − − °C Tj Tj = junction temperature Thyst Thermal hysteresis − 15 − °C Tj Tj = junction temperature THERMAL RATINGS Ta Ambient temperature −40 − 85 °C Tj Junction temperature − − 125 150 °C °C Parametric values guaranteed Max 1000 hours 12.Conditions a. No current through the pass−switch b. DC−DC controller inactive (SS shorted to RTN) c. No external load on VDDH and VDDL d. VPORTP = 57 V 13.Conditions a. No current through the pass−switch b. Oscillator frequency = 100 kHz c. No external load on VDDH and VDDL d. Aux winding not used e. 2 nF on GATE, DC−DC controller enabled f. VPORTP = 57 V |
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