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UA7912CKTER Fiches technique(PDF) 4 Page - Texas Instruments |
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UA7912CKTER Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 10 page µA7900 SERIES NEGATIVEVOLTAGE REGULATORS SLVS058D − JUNE 1976 − REVISED APRIL 2004 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics at specified virtual junction temperature, VI = −14 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS TJ† µA7908C UNITS PARAMETER TEST CONDITIONS TJ† MIN TYP MAX UNITS ‡ 25 °C −7.7 −8 −8.3 Output voltage‡ IO = 5 mA to 1 A, P ≤ 15 W VI = −10.5 V to −23 V, 0 °C to 125°C −7.6 −8.4 V Input regulation VI = −10.5 V to −25 V 12.5 160 mV Input regulation VI = −11 V to −17 V 4 80 mV Ripple rejection VI = −11.5 V to −21.5 V, f = 120 Hz 0 °C to 125°C 54 60 dB Output regulation IO = 5 mA to 1.5 A 15 160 mV Output regulation IO = 250 mA to 750 mA 5 80 mV Temperature coefficient of output voltage IO = 5 mA 0 °C to 125°C −0.6 mV/ °C Output noise voltage f = 10 Hz to 100 kHz 25 °C 200 µV Dropout voltage IO = 1 A 25 °C 1.1 V Bias current 25 °C 1.5 2 mA Bias current change VI = −10.5 V to −25 V 0.15 1 mA Bias current change IO = 5 mA to 1 A 0.08 0.5 mA Peak output current 25 °C 2.1 A † Pulse-testing techniques are used to 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 2- µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. electrical characteristics at specified virtual junction temperature, VI = −19 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS TJ† µA7912C UNITS PARAMETER TEST CONDITIONS TJ† MIN TYP MAX UNITS ‡ 25 °C −11.5 −12 −12.5 Output voltage‡ IO = 5 mA to 1 A, P ≤ 15 W VI = −14.5 V to −27 V, 0 °C to 125°C −11.4 −12.6 V Input regulation VI = −14.5 V to −30 V 5 80 mV Input regulation VI = −16 V to −22 V 3 30 mV Ripple rejection VI = −15 V to −25 V, f = 120 Hz 0 °C to 125°C 54 60 dB Output regulation IO = 5 mA to 1.5 A 15 200 mV Output regulation IO = 250 mA to 750 mA 5 75 mV 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 300 µV Dropout voltage IO = 1 A 25 °C 1.1 V Bias current 25 °C 2 3 mA Bias current change VI = −14.5 V to −30 V 0.04 0.5 mA Bias current change IO = 5 mA to 1 A 0.06 0.5 mA Peak output current 25 °C 2.1 A † Pulse-testing techniques are used to 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 2- µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. |
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