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LM2931IBPX-5.0 데이터시트(PDF) 6 Page - National Semiconductor (TI) |
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LM2931IBPX-5.0 데이터시트(HTML) 6 Page - National Semiconductor (TI) |
6 / 18 page Electrical Characteristics for Fixed 5V Version (Continued) V IN = 14V, IO = 10mA, TJ = 25˚C, C2 = 100 µF (unless otherwise specified) (Note 2) Parameter Conditions LM2931A-5.0 LM2931-5.0 Units Typ Limit (Note 3) Typ Limit (Note 3) Load Regulation 5 mA ≤ I O ≤ 100mA 14 50 14 50 mV MAX Output Impedance 100mA DC and 10mArms, 100Hz -10kHz 200 200 m Ω Quiescent Current I O ≤ 10mA, 6V ≤ VIN ≤ 26V 0.4 1.0 0.4 1.0 mA MAX −40˚C ≤ T J ≤ 125˚C I O = 100mA, VIN = 14V, TJ = 25˚C 15 30 5 15 mA MAX mA MIN Output Noise Voltage 10Hz -100kHz, C OUT = 100µF 500 500 µV rms Long Term Stability 20 20 mV/1000 hr Ripple Rejection f O = 120 Hz 80 55 80 dB MIN Dropout Voltage I O = 10mA I O = 100mA 0.05 0.3 0.2 0.6 0.05 0.3 0.2 0.6 V MAX Maximum Operational Input Voltage 33 26 33 26 V MIN Maximum Line Transient R L = 500Ω,VO ≤ 5.5V, T = 1ms, τ≤ 100ms 70 60 70 50 V MIN Reverse Polarity Input Voltage, DC V O ≥ −0.3V, RL = 500Ω −30 −15 −30 −15 V MIN Reverse Polarity Input Voltage, Transient T = 1ms, τ≤ 100ms, R L = 500Ω −80 −50 −80 −50 V MIN Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device beyond its rated operating conditions. Note 2: See circuit in Typical Applications. To ensure constant junction temperature, low duty cycle pulse testing is used. Note 3: All limits are guaranteed for TJ = 25˚C (standard type face) or over the full operating junction temperature range of −40˚C to +125˚C (bold type face). Note 4: The maximum power dissipation is a function of maximum junction temperature TJmax, total thermal resistance θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is PD =(TJmax −TA)/θJA. If this dissipation is exceeded, the die temperature will rise above 150˚C and the LM2931 will go into thermal shutdown. For the LM2931 in the TO-92 package, θJA is 195˚C/W; in the SO-8 package, θJA is 160˚C/W, and in the TO-220 package, θJA is 50˚C/W; in the TO-263 package, θJA is 73˚C/W; and in the 6-Bump micro SMD package θJA is 290˚C/W. If the TO-220 package is used with a heat sink, θJA is the sum of the package thermal resistance junction-to-case of 3˚C/W and the thermal resistance added by the heat sink and thermal interface. If the TO-263 package is used, the thermal resistance can be reduced by increasing the P.C. board copper area thermally connected to the package: Using 0.5 square inches of copper area, θJA is 50˚C/W; with 1 square inch of copper area, θJA is 37˚C/W; and with 1.6 or more square inches of copper area, θJA is 32˚C/W. Note 5: Human body model, 100 pF discharged through 1.5 k Ω. Electrical Characteristics for Adjustable Version V IN = 14V, VOUT = 3V, IO = 10 mA, TJ = 25˚C, R1 = 27k, C2 = 100 µF (unless otherwise specified) (Note 2) Parameter Conditions Typ Limit Units Limit Reference Voltage 1.20 1.26 V MAX 1.14 V MIN I O ≤ 100 mA, −40˚C ≤ Tj ≤ 125˚C, R1 = 27k 1.32 V MAX Measured from V OUT to Adjust Pin 1.08 V MIN Output Voltage Range 24 V MAX 3V MIN Line Regulation V OUT + 0.6V ≤ VIN ≤ 26V 0.2 1.5 mV/V MAX Load Regulation 5 mA ≤ I O ≤ 100 mA 0.3 1 % MAX Output Impedance 100 mA DC and 10 mArms, 100 Hz–10 kHz 40 m Ω/V Quiescent Current I O = 10 mA 0.4 1 mA MAX I O = 100 mA 15 mA During Shutdown R L = 500Ω 0.8 1 mA MAX www.national.com 6 |
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