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TPS74401 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS74401 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 22 page www.ti.com 2.85 2.65 2.45 2.25 2.05 1.85 1.65 1.45 1.25 0 500 1000 1500 2000 2500 I (mA) OUT 3000 +125 C ° +25 C ° - ° 40 C 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 2.0 2.5 3.0 3.5 4.0 4.5 V (V) BIAS 5.0 T = J +125 C ° T =+25 C ° J T = J - ° 40 C 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 - 40 - 20 0 20 40 60 80 100 120 V =2.375V BIAS V =5.5V BIAS 765 750 735 720 705 690 675 - 40 - 20 0 20 40 60 80 100 120 Time(20 s/div) m V OUT 50mV/div I OUT 1A/div OutputOpen OutputShorted V =0.8V OUT 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 2 4 6 8 10 12 PGCurrent(mA) TPS74401 SBVS066D – DECEMBER 2005 – REVISED AUGUST 2006 TYPICAL CHARACTERISTICS (continued) At TJ = +25°C, VOUT = 1.5V, VIN = VOUT(TYP) + 0.3V, VBIAS = 3.3V, IOUT = 50mA, CIN = 1µF, CBIAS = 1µF, CSS = 0.01µF, and COUT = 10µF, unless otherwise noted. IBIAS vs IOUT AND TEMPERATURE IBIAS vs VBIAS AND VOUT Figure 21. Figure 22. SOFT-START CHARGING CURRENT (ISS) IBIAS SHUTDOWN vs TEMPERATURE vs TEMPERATURE Figure 23. Figure 24. LOW-LEVEL PG VOLTAGE vs PG CURRENT OUTPUT SHORT-CIRCUIT RECOVERY Figure 25. Figure 26. 9 Submit Documentation Feedback |
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