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UC1844J Fiches technique(PDF) 3 Page - Texas Instruments |
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UC1844J Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 3 page 3 PARAMETER TEST CONDITIONS UC1842/3/4/5 UC2842/3/4/5 UC3842/3/4/5 UNITS MIN TYP MAX MIN TYP MAX Reference Section Output Voltage TJ = 25°C, IO = 1mA 4.95 5.00 5.05 4.90 5.00 5.10 V Line Regulation 12 ≤ VIN ≤ 25V 6 20 6 20 mV Load Regulation 1 ≤ I0 ≤ 20mA 6 25 6 25 mV Temp. Stability (Note 2) (Note 7) 0.2 0.4 0.2 0.4 mV/°C Total Output Variation Line, Load, Temp. (Note 2) 4.9 5.1 4.82 5.18 V Output Noise Voltage 10Hz ≤ f ≤ 10kHz, TJ = 25°C (Note2) 50 50 µV Long Term Stability TA = 125°C, 1000Hrs. (Note 2) 5 25 5 25 mV Output Short Circuit -30 -100 -180 -30 -100 -180 mA Oscillator Section Initial Accuracy TJ = 25°C (Note 6) 47 52 57 47 52 57 kHz Voltage Stability 12 ≤ VCC ≤ 25V 0.2 1 0.2 1 % Temp. Stability TMIN ≤ TA ≤ TMAX (Note 2) 5 5 % Amplitude VPIN 4 peak to peak (Note 2) 1.7 1.7 V Error Amp Section Input Voltage VPIN 1 = 2.5V 2.45 2.50 2.55 2.42 2.50 2.58 V Input Bias Current -0.3 -1 -0.3 -2 µA AVOL 2 ≤ VO ≤ 4V 65 90 65 90 dB Unity Gain Bandwidth (Note 2) TJ = 25°C 0.7 1 0.7 1 MHz PSRR 12 ≤ VCC ≤ 25V 60 70 60 70 dB Output Sink Current VPIN 2 = 2.7V, VPIN 1 = 1.1V 2 6 2 6 mA Output Source Current VPIN 2 = 2.3V, VPIN 1 = 5V -0.5 -0.8 -0.5 -0.8 mA VOUT High VPIN 2 = 2.3V, RL = 15k to ground 5 6 5 6 V VOUT Low VPIN 2 = 2.7V, RL = 15k to Pin 8 0.7 1.1 0.7 1.1 V Current Sense Section Gain (Notes 3 and 4) 2.85 3 3.15 2.85 3 3.15 V/V Maximum Input Signal VPIN 1 = 5V (Note 3) 0.9 1 1.1 0.9 1 1.1 V PSRR 12 ≤ VCC ≤ 25V (Note 3) (Note 2) 70 70 dB Input Bias Current -2 -10 -2 -10 µA Delay to Output VPIN 3 = 0 to 2V (Note 2) 150 300 150 300 ns UC1842/3/4/5 UC2842/3/4/5 UC3842/3/4/5 ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for -55°C ≤ TA ≤ 125°C for the UC184X; -40°C ≤ TA ≤ 85°C for the UC284X; 0°C ≤ TA ≤ 70°C for the 384X; VCC = 15V (Note 5); RT = 10k; CT = 3.3nF, TA=TJ. Note 2: These parameters, although guaranteed, are not 100% tested in production. Note 3: Parameter measured at trip point of latch with VPIN 2 =0. Note 4: Gain defined as A VPIN VPIN VPIN V =≤ ≤ ∆ ∆ 1 3 03 0 8 ,. Note 5: Adjust VCC above the start threshold before setting at 15V. Note 6: Output frequency equals oscillator frequency for the UC1842 and UC1843. Output frequency is one half oscillator frequency for the UC1844 and UC1845. Note 7: Temperature stability, sometimes referred to as average temperature coefficient, is described by the equation: Temp Stability V max VREF min TJ max TJ min REF = − − () ( ) () ( ) VREF (max) and VREF (min) are the maximum and minimum reference voltages measured over the appropriate temperature range. Note that the extremes in voltage do not necessarily occur at the extremes in temperature. |
Numéro de pièce similaire - UC1844J |
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Description similaire - UC1844J |
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