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UA7808CKCS 数据表(PDF) 5 Page - Texas Instruments |
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UA7808CKCS 数据表(HTML) 5 Page - Texas Instruments |
5 / 12 page μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 uA7805 Electrical Characteristics at specified virtual junction temperature, VI = 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 VI = 8 V to 12 V, f = 120 Hz 62 78 Ripple rejection(2) 0°C to 125°C dB VI = 8 V to 12 V, f = 120 Hz (KCT) 68 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. (2) This parameter is validated by design and verified during product characterization. It is not tested in production. uA7808 Electrical Characteristics at specified virtual junction temperature, VI = 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, VI = 10.5 V to 23 V, Output voltage 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 VI = 11.5 V to 21.5 V, f = 120 Hz 55 72 Ripple rejection(2) 0°C to 125°C dB VI = 11.5 V to 21.5 V, f = 120 Hz 62 (KCT) 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 (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. (2) This parameter is validated by design and verified during product characterization. It is not tested in production. Copyright © 1976–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 |
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