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KA7809R Scheda tecnica(PDF) 7 Page - Fairchild Semiconductor |
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KA7809R Scheda tecnica(HTML) 7 Page - Fairchild Semiconductor |
7 / 28 page KA78XX/KA78XXA 7 Electrical Characteristics (KA7812/KA7812R) (Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =19V, CI= 0.33 µF, CO=0.1µF, unless otherwise specified) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions KA7812/KA7812R Unit Min. Typ. Max. Output Voltage VO TJ =+25 oC 11.5 12 12.5 5.0mA ≤ IO≤1.0A, PO≤15W VI = 14.5V to 27V 11.4 12 12.6 V Line Regulation (Note1) Regline TJ =+25 oC VI = 14.5V to 30V - 10 240 mV VI = 16V to 22V - 3.0 120 Load Regulation (Note1) Regload TJ =+25 oC IO = 5mA to 1.5A - 11 240 mV IO = 250mA to 750mA - 5.0 120 Quiescent Current IQ TJ =+25 oC- 5.1 8.0 mA Quiescent Current Change ∆IQ IO = 5mA to 1.0A - 0.1 0.5 mA VI = 14.5V to 30V - 0.5 1.0 Output Voltage Drift ∆VO/∆TIO = 5mA - -1 - mV/ oC Output Noise Voltage VN f = 10Hz to 100KHz, TA =+25 oC- 76 - µV/Vo Ripple Rejection RR f = 120Hz VI = 15V to 25V 55 71 - dB Dropout Voltage VDrop IO = 1A, TJ=+25 oC- 2 - V Output Resistance rO f = 1KHz - 18 - m Ω Short Circuit Current ISC VI = 35V, TA=+25 oC - 230 - mA Peak Current IPK TJ = +25 oC- 2.2 - A |
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