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TL3842BDR-8 Datasheet(PDF) 5 Page - Texas Instruments |
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TL3842BDR-8 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 21 page www.ti.com Reference Section Electrical Characteristics Oscillator Section (1) Electrical Characteristics TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS SLVS610A – AUGUST 2006 – REVISED SEPTEMBER 2006 V CC = 15 V (1), R T = 10 kΩ, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP(2) MAX MIN TYP(2) MAX Output voltage IO = 1 mA, TJ = 25°C 4.95 5 5.05 4.9 5 5.1 V Line regulation VCC = 12 V to 25 V 6 20 6 20 mV Load regulation IO = 1 mA to 20 mA 6 25 6 25 mV Average temperature 0.2 0.4 0.2 0.4 mV/ °C coefficient of output voltage Output voltage, worst-case VCC = 12 V to 25 V, 4.9 5.1 4.82 5.18 V variation IO = 1 mA to 20 mA Output noise voltage f = 10 Hz to 10 kHz, TJ = 25°C 50 50 µV Output-voltage long-term drift After 1000 h at TJ = 25°C 5 25 5 25 mV Short-circuit output current –30 –100 –180 –30 –100 –180 mA (1) Adjust VCC above the start threshold before setting it to 15 V. (2) All typical values are at TJ = 25°C. V CC = 15 V (2), R T = 10 kΩ, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) TL284xB TL384xB PARAMETER TEST CONDITIONS UNIT MIN TYP(3) MAX MIN TYP(3) MAX TJ = 25°C, RT = 62 kΩ, CT = 1 nF, Min = 225 kHz, 49 52 55 49 52 55 Initial accuracy kHz Max = 275 kHz TJ = Full range 48 56 48 56 Voltage stability VCC = 12 V to 25 V 0.2 1 0.2 1 % Temperature stability 5 5 % Amplitude Peak to peak 1.7 1.7 V TJ = 25°C, RT/CT = 2 V 7.8 8.3 8.8 7.8 8.3 8.8 Discharge current mA RT/CT = 2 V 7.5 8.8 7.6 8.8 (1) Output frequency equals oscillator frequency for the TL3842B and TL3843B. Output frequency is one-half the oscillator frequency for the TL3844B and TL3845B. (2) Adjust VCC above the start threshold before setting it to 15 V. (3) All typical values are at TJ = 25°C. 5 Submit Documentation Feedback |
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