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UC1843-HIREL bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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4 / 10 page ELECTRICAL CHARACTERISTICS Temp Stability + V REF (max) * VREF (min) TJ(max) * TJ (min) VREF(max) and VREF(min) are the maximum and minimum reference voltages measured over (6) Gain defined as: A + D VPIN 1 DVPIN 3 , 0 v VPIN 3 v 0.8 V UC1843-HiRel SLUS896A – AUGUST 2009 – REVISED AUGUST 2009 .................................................................................................................................................. www.ti.com Unless otherwise stated, these specifications apply for –55°C ≤ TA ≤ 125°C; VCC = 15 V (1); R T = 10 kW; CT = 3.3 nF,TA = TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT REFERENCE SECTION Output Voltage TJ = 25°C, IO = 1 mA 4.95 5.00 5.05 V Line Regulation 12 ≤ VIN ≤ 25 V 6 20 mV Load Regulation 1 ≤ I0 ≤ 20 mA 6 25 Temperature Stability See (2)(3) 0.2 0.4 mV/°C Total Output Variation Line, load, tempature (2) 4.9 5.1 V Output Noise Voltage 10 Hz ≤ f ≤ 10 kHz, TJ = 25°C (2) 50 µV Long Term Stability TA = 125°C, 1000 Hrs (2) 5 25 mV Output Short Circuit –30 –100 –180 mA OSCILLATOR SECTION Initial Accuracy TJ = 25°C (4) 47 52 57 kHz Voltage Stability 12 ≤ VCC ≤ 25 V 0.2% 1% Temperature Stability TMIN ≤ TA ≤ TMAX (2) 5% Amplitude VPIN 4 peak-to-peak (2) 1.7 V ERROR AMP SECTION Input Voltage VPIN 1 = 2.5 V 2.45 2.50 2.55 V Input Bias Current –0.3 –1 µA AVOL 2 ≤ VO ≤ 4 V 65 90 dB Unity Gain Bandwidth TJ = 25°C (2) 0.7 1 MHz PSRR 12 ≤ VCC ≤ 25 V 60 70 dB Output Sink Current VPIN 2 = 2.7 V, VPIN 1 = 1.1 V 2 6 mA Output Source Current VPIN 2 = 2.3 V, VPIN 1 = 5 V –0.5 –0.8 VOUT High VPIN 2 = 2.3 V, RL = 15 kΩ to ground 5 6 V VOUT Low VPIN 2 = 2.7 V, RL = 15 kΩ to Pin 8 0.7 1.1 CURRENT SENSE SECTION Gain See (5)(6) 2.85 3 3.15 V/V Maximum Input Signal VPIN 1 = 5 V (5) 0.9 1 1.1 V PSRR 12 ≤ VCC ≤ 25 V (2) (5) 70 dB Input Bias Current –2 –10 µA Delay to Output VPIN 3 = 0 V to 2 V (2) 150 300 ns OUTPUT SECTION ISINK = 20 mA 0.1 0.4 Output Low Level ISINK = 200 mA 1.5 2.2 V ISOURCE = 20 mA 13 13.5 Output High Level ISOURCE = 200 mA 12 13.5 Rise Time TJ = 25°C, CL = 1 nF (2) 50 150 ns Fall Time TJ = 25°C, CL = 1nF (2) 50 150 (1) Adjust VCC above the start threshold before setting at 15 V. (2) These parameters, although specified, are not 100% tested in production. (3) Temperature stability, sometimes referred to as average temperature coefficient, is described by the equation: the appropriate temperature range. Note that the extremes in voltage do not necessarily occur at the extremes in temperature. (4) Output frequency equals oscillator frequency. (5) Parameter measured at trip point of latch with VPIN 2 = 0. 4 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): UC1843-HiRel |
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