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UA7812CKCS Scheda tecnica(PDF) 4 Page - Texas Instruments |
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UA7812CKCS Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 19 page www.ti.com uA7805 Electrical Characteristics uA7808 Electrical Characteristics µA7800 SERIES POSITIVE-VOLTAGE REGULATORS SLVS056L – MAY 1976 – REVISED NOVEMBER 2006 at specified virtual junction temperature, V I = 10 V, IO = 500 mA (unless otherwise noted) µA7805C PARAMETER TEST CONDITIONS TJ(1) UNIT MIN TYP MAX 25 °C 4.8 5 5.2 IO = 5 mA to 1 A, VI = 7 V to 20 V, Output voltage V PD ≤ 15 W 0 °C to 125°C 4.75 5.25 VI = 7 V to 25 V 3 100 Input voltage regulation 25 °C mV VI = 8 V to 12 V 1 50 Ripple rejection VI = 8 V to 12 V, f = 120 Hz 0 °C to 125°C 62 78 dB IO = 5 mA to 1.5 A 15 100 Output voltage regulation 25 °C mV IO = 250 mA to 750 mA 5 50 Output resistance f = 1 kHz 0 °C to 125°C 0.017 Ω Temperature coefficient of output voltage IO = 5 mA 0 °C to 125°C –1.1 mV/ °C Output noise voltage f = 10 Hz to 100 kHz 25 °C 40 µV Dropout voltage IO = 1 A 25 °C 2 V Bias current 25 °C 4.2 8 mA VI = 7 V to 25 V 1.3 Bias current change 0 °C to 125°C mA IO = 5 mA to 1 A 0.5 Short-circuit output current 25 °C 750 mA Peak output current 25 °C 2.2 A (1) Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33- µF capacitor across the input and a 0.1-µF capacitor across the output. at specified virtual junction temperature, V I = 14 V, IO = 500 mA (unless otherwise noted) µA7808C PARAMETER TEST CONDITIONS TJ(1) UNIT MIN TYP MAX 25 °C 7.7 8 8.3 IO = 5 mA to 1 A, Output voltage V VI = 10.5 V to 23 V, PD ≤ 15 W 0 °C to 125°C 7.6 8.4 VI = 10.5 V to 25 V 6 160 Input voltage regulation 25 °C mV VI = 11 V to 17 V 2 80 Ripple rejection VI = 11.5 V to 21.5 V, f = 120 Hz 0 °C to 125°C 55 72 dB IO = 5 mA to 1.5 A 12 160 Output voltage regulation 25 °C mV IO = 250 mA to 750 mA 4 80 Output resistance f = 1 kHz 0 °C to 125°C 0.016 Ω Temperature coefficient of output voltage IO = 5 mA 0 °C to 125°C –0.8 mV/ °C Output noise voltage f = 10 Hz to 100 kHz 25 °C 52 µV Dropout voltage IO = 1 A 25 °C 2 V Bias current 25 °C 4.3 8 mA VI = 10.5 V to 25 V 1 Bias current change 0 °C to 125°C mA IO = 5 mA to 1 A 0.5 Short-circuit output current 25 °C 450 mA Peak output current 25 °C 2.2 A (1) Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33- µF capacitor across the input and a 0.1-µF capacitor across the output. 4 Submit Documentation Feedback |
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