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TPS549A20 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS549A20 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 47 page  5 TPS549A20 www.ti.com SLUSC79A – NOVEMBER 2015 – REVISED DECEMBER 2015 Product Folder Links: TPS549A20 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated (1) Voltage values are with respect to the SW pin. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT Input voltage range EN –0.1 7 V SW –3 20 VBST –0.1 25.5 VBST(1) –0.1 5.5 VDD 4.5 25 VIN 1.5 20 ADDR, SDA, SCL, FB, MODE, VO –0.1 5.5 Output voltage range PGOOD –0.1 7 V ALERT TRIP, VREG –0.1 5.5 Ambient temperature, TA –40 125 °C (1) Tested at these VOUT_ADJUSTMENT settings: –9.0%, –8.25%, –5.25%, –2.25%, 0.0%, 3.00%, 6.00%, 9.0% (2) Tested at these VOUT_MARGIN settings: –11.62%, –10.74%, –7.06%, –3.15%, 0%, 3.7%, 7.74%, 12.05% 6.4 Electrical Characteristics over operating free-air temperature range, VDD = 12V, VREG = 5 V, VEN = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT IVDD VDD bias current TA = 25°C, No load Power conversion enabled (no switching) 1350 1850 µA IVDDSTBY VDD standby current TA = 25°C, No load Power conversion disabled 850 1150 µA IVIN(leak) VIN leakage current TA = 25°C, VEN = 0 V 0.5 µA VREF OUTPUT VVREF Reference voltage FB w/r/t GND, TA = 25°C 597 600 603 mV VVREFTOL Reference voltage tolerance FB w/r/t GND, -40°C ≤ TJ ≤ 85°C –0.5 0.5 % FB w/r/t GND, –40°C ≤ TJ ≤ 125°C –1.0 1.0 OUTPUT VOLTAGE IFB FB input current VFB = 600 mV 50 100 nA IVODIS VO discharge current VVO = 0.5 V, Power Conversion Disabled 6 uA INTERNAL DAC REFERENCE VDACTOL1 DAC voltage tolerance 1 FB w/r/t GND, 0°C ≤ TA ≤ 85°C, with certain VOUT_ADJUSTMENT settings only (1) –6.0 6.0 mV VDACTOL2 DAC voltage tolerance 2 FB w/r/t GND, 0°C ≤ TA ≤ 85°C, with certain VOUT_MARGIN settings only (2) –6.0 6.0 mV VDACTOL3 DAC voltage tolerance 3 FB w/r/t GND, 0°C ≤ TA ≤ 85°C, with VOUT_ADJUSTMENT=0Dh and VOUT_MARGIN=70h for 5% –6.0 6.0 mV VDACTOL4 DAC voltage tolerance 4 FB w/r/t GND, 0°C ≤ TA ≤ 85°C, with VOUT_ADJUSTMENT=13h and VOUT_MARGIN=07h for -5% –6.0 6.0 mV |
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