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UCC28221PW Datasheet(PDF) 3 Page - Texas Instruments |
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UCC28221PW Datasheet(HTML) 3 Page - Texas Instruments |
3 / 24 page UCC28220, UCC28221 SLUS544A − SEPTEMBER 2003 − REVISED AUGUST 2004 3 www.ti.com ABSOLUTE MAXIMUM RATINGS over operating free-air temperature (unless otherwise noted)†} Parameter UCC2822X UNIT High voltage start-up input, VIN 110 V Supply voltage, VDD 15 V Output current (OUT1, OUT2) dc , IOUT(dc) ±10 mA OUT1/ OUT2 capacitive load 200 pF REF output current, IREF 10 mA Current sense inputs, CS1, CS2 −1.0 to 2.0 V Analog inputs (CHG, DISCHG, SLOPE, REF, CNTRL) −0.3 to 3.6 V Analog inputs (SS, LINEOV, LINEUV, LINEHYS) −0.3 to 7.0 V Power dissipation at TA = 25°C (PW package) 400 mW Power dissipation at TA = 25°C (D package) 650 mW Junction operating temperature, TJ −55 to 150 °C Storage temperature, Tstg −65 to 150 °C Lead temperature (soldering, 10 sec.), Tsol 300 °C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute−maximum−rated conditions for extended periods may affect device reliability. ‡ All voltages are with respect to GND. Currents are positive into, negative out of the specified terminal. Consult Packaging Section of the Databook for thermal limitations and considerations of packages. ELECTRICAL CHARACTERISTICS: VDD = 12 V, 0.1-µF capacitor from VDD to GND, 0.1-µF capacitor from REF to GND, FOSC = 1 MHz, TA = −40°C to 105 °C, TA = TJ, (unless otherwise noted). PARAMETER TEST CONDITION MIN TYP MAX UNITS Overall Section Operating VDD range 8 14 V Quiescent current SS = 0 V, no switching, Fosc = 1 MHz 1.5 3 4 mA Operating current Outputs switching, Fosc = 1 MHz 1.6 3.5 6 mA Startup Section Startup current UCC28220 VDD < (UVLO−0.8) 200 A Startup current UCC28221 VDD < (UVLO−0.8) 500 µA UVLO start threshold UCC28220 9.5 10 10.5 UVLO start threshold UCC28221 12.3 13 13.7 V UVLO stop threshold 7.6 8 8.4 V UVLO hysteresis UCC28220 1.8 2 2.2 V UVLO hysteresis UCC28221 4.8 5 5.2 JFET ON threshold SS = 0, outputs not switching, VDD decreasing 9.5 10 10.5 V JFET ON threshold SS = 2 V,Cntrl = 2 V, output switching, VDD decreasing; same threshold as UVLO stop 7.6 8 8.4 V High voltage JFET current VIN = 36 V to 76 V, VDD = 0 V 16 48 100 High voltage JFET current VIN = 36 V to 76 V, VDD = 10 V 4 16 40 mA High voltage JFET current VIN = 36 V to 76 V, VDD < UVLO 4 12 40 mA JFET leakage VIN = 36 V to 76 V, VDD = 14 V 100 µA |
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