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LM2984T Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM2984T Datasheet(HTML) 3 Page - National Semiconductor (TI) |
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3 / 16 page  Electrical Characteristics (Continued) V IN = 14V, Ibuf = 5 mA, Cbuf = 10 µF, unless otherwise indicated. Boldface type refers to limits over the entire operating tem- perature range, −40˚C ≤ T A ≤ +125˚C, all other limits are for TA = Tj = 25˚C (Note 8) . Parameter Conditions Typical Limit Units (Note 4) V buffer (Pin 10) Output Noise Voltage 10 Hz–100 kHz, I OUT = 100 mA 100 µV Long Term Stability 20 mV/1000 hr Ripple Rejection f o = 120 Hz 70 60/50 dB min Dropout Voltage I buf = 100 mA 0.35 0.50/0.80 V max Current Limit 0.23 0.15/0.15 A min Maximum Operational Continuous DC 32 26/26 V min Input Voltage Maximum Line V buf ≤ 6V, Rbuf = 100Ω, 65 60/60 V min Transient T ≤ 100 ms Reverse Polarity V buf ≥ −0.6V, Rbuf = 100Ω −30 −15/−15 V min Input Voltage DC Reverse Polarity Input T ≤ 100 ms, R buf = 100Ω −55 −35/−35 V min Voltage Transient Electrical Characteristics V IN = 14V, Istby = 1 mA, Cstby = 10 µF, unless otherwise indicated. Boldface type refers to limits over the entire operating tem- perature range, −40˚C ≤ T A ≤ +125˚C, all other limits are for TA = Tj = 25˚C (Note 8) . Parameter Conditions Typical Limit Units (Note 4) V standby (Pin 9) Output Voltage 1 mA ≤ I O ≤ 7.5 mA 5.00 4.85/4.75 V min 6V ≤ V IN ≤ 26V 5.15/5.25 V max Line Regulation 9V ≤ V IN ≤ 16V 2 25/25 mV max 7V ≤ V IN ≤ 26V 5 50/50 mV max Load Regulation 0.5 mA ≤ I OUT ≤ 7.5 mA 6 50/50 mV max Output Impedance 5 mA dc and1mArms,fo = 120 Hz 0.9 Ω Quiescent Current I stby = 7.5 mA 1.2 2.0/4.0 mA max I stby = 2 mA 0.9 1.5/4.0 mA max Output Noise Voltage 10 Hz–100 kHz, I stby = 1 mA 100 µV Long Term Stability 20 mV/1000 hr Ripple Rejection f o = 120 Hz 70 60/50 dB min Dropout Voltage I stby = 1 mA 0.26 0.50/0.60 V max I stby = 7.5 mA 0.38 0.60/0.70 V max Current Limit 15 12/12 mA min Maximum Operational 4.5V ≤ V stby ≤ 6V, 65 60/60 V min Input Voltage R stby = 1000Ω Maximum Line V stby ≤ 6V, T ≤ 100 ms, 65 60/60 V min Transient R stby = 1000Ω Reverse Polarity V stby ≥ −0.6V, −30 −15/−15 V min Input Voltage DC R stby = 1000Ω Reverse Polarity Input T ≤ 100 ms, R stby = 1000Ω −55 −35/−35 V min Voltage Transient 3 www.national.com |
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