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UC2848 Fiches technique(PDF) 3 Page - Texas Instruments |
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UC2848 Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 13 page 3 UC1848 UC2848 UC3848 ELECTRICAL CHARACTERISTICS: Unless otherwise stated, all specifications are over the junction temperature range of −55°C to +125°C for the UC1848, −40°C to +85°C for the UC2848, and 0°C to +70°C for the UC3848. Test conditions are: VCC = 12V, CT = 400pF, CI = 100pF, IOFF = 100 µA, CDC = 100nF, Cvs = 100pF, and Ivs = 400µA, TA =TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Real Time Current Waveform Synthesizer Ion Amplifier Offset Voltage 0.95 1 1.05 V Slew Rate (Note 1) 20 25 V/ µs lib -2 -20 µA IOFF Current Mirror Input Voltage 0.95 1 1.05 V Current Gain 0.9 1 1.1 A/A Current Error Amplifier AVOL 60 100 dB Vio 12V ≤ VCC 20V, 0V VCM 5V 10 mV lib -0.5 -3 µA Voh IO = −200µA 3 3.3 V Vol IO = 200 µA 0.3 0.6 V Source Current VO = 1V 1.4 1.6 2.0 mA GBW Product f = 200kHz 5 8 MHz Slew Rate (Note 1) 810 V/ µs Oscillator Frequency TA = 25°C 240 250 260 kHz 235 265 kHz Ramp Amplitude 1.5 1.65 1.8 V Duty Cycle Clamp Max Duty Cycle V(DMAX) = 0.75 • VREF 73.5 76.5 79.5 % Volt Second Clamp Max On Time 900 1100 ns VCC Comparator Turn-on Threshold 13 14 V Turn-off Threshold 910 V Hysteresis 2.5 3 3.5 V |
Numéro de pièce similaire - UC2848 |
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Description similaire - UC2848 |
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