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LM2633 Scheda tecnica(PDF) 8 Page - National Semiconductor (TI) |
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LM2633 Scheda tecnica(HTML) 8 Page - National Semiconductor (TI) |
8 / 40 page Absolute Maximum Ratings (Note 11) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Voltages from the indicated pins to GND/PGND: VIN, KS1, KS2, SW1, SW2 −0.3V to 31V ILIM1, ILIM2 −0.3V to 31V VID0-VID4 −0.3V to 5V VLIN, VDD1, VDD2, PGOOD −0.3V to 6V FB1, FB2, SENSE2, G3, FB3, OUT3 −0.3V to 6V CBOOT1 −0.3V to SW1+ 7V CBOOT2 −0.3V to SW2+ 7V ON/SS1, ON/SS2 −0.3V to 5V FPWM −0.3V to 7V Power Dissipation (T A = 25˚C), (Note 12) 1.56W Junction Temperature +150˚C ESD Rating (Note 14) 2kV Ambient Storage Temperature Range −65˚C to +150˚C Soldering Dwell Time, Temperature (Note 13) Wave Infrared Vapor Phase 4 sec, 260˚C 10sec, 240˚C 75sec, 219˚C Operating Ratings(Note 11) VIN (VIN and VLIN5 tied together) 4.5V to 5.5V VIN (VIN and VLIN5 separate) 5.0V to 30V Junction Temperature 1 0˚C to +125˚C Junction Temperature 2 −40˚C to +125˚C VDD1, VDD2 4.5V to 5.5V Electrical Characteristics V CC = +15V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for TA =T J = +25˚C. Limits appearing in boldface type apply over 0˚C to +125˚C. Symbol Parameter Conditions Min Typ Max Units SYSTEM ∆V out1_load Channel 1 Load Regulation (Note 17) V COMP1 moves from 0.5V to 1.5V, VID4:0=01101 0mV ∆V out2_load Channel 2 Load Regulation (Note 17) V COMP2 moves from 0.5V to 1.5V 1.5 mV ∆V fb Line Regulation (for the two switching regulators) 5.0V ≤ VIN ≤ 30V, VID4:0=01101 2mV I vin Input Supply Current with the Switching Channels ON V FB = 0.9V, no VLIN5 DC Current (Note 18) 1.5 2.4 mA I vin_sd Input Supply Current with the IC Shut Down V ON/SS1 =VON/SS2 =0V (Note 19) 10 18 µA V vlin5 VLIN5 Output Voltage I VLIN5 = 0 to 25mA, 5.5V < VIN < 30V 4.7 5.0 5.3 V I ilim_pos ILIM1 and ILIM2 Pins Sink Current 8 10 12 µA V ilim_neg Negative Current Limit (SWx vs PGNDx voltage) 45 mV I ss_sc Soft Start Charge Current 0.5 2.25 5 µA I ss_sk Soft Start Sink Current In UVLO or thermal shutdown 2 µA V ss_on Soft Start ON Threshold 1.2 V V ssto Soft Start Timeout Threshold (Note 20) 3.5 V V uvd UV_DELAY Threshold VLIN5 = 5V (Note 21) 2.1 V I delay UV_DELAY Source Current 1.0 5 9.0 µA I vid VID4:0 Internal Pull Up Current 613 µA www.national.com 8 |
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