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TPS53511 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS53511 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 24 page TPS53511 www.ti.com SLUSBG4A – MARCH 2013 – REVISED JANUARY 2014 ELECTRICAL CHARACTERISTICS (continued) over recommended free-air temperature range, VVIN = 12 V, PGND = GND (unless otherwise noted). () PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ON-TIME TIMER CONTROL tON On time VVIN = 12 V, VOUT = 1.05 V 145 ns tOFF(min) Minimum off time TA = 25°C, VVFB = 0.7 V 260 310 ns SOFT-START FUNCTION ISSC Soft-start charge current VSS = 0 V 1.4 2.0 2.6 µA ISSD Soft-start discharge current VSS = 0.5 V 0.1 0.2 mA POWER GOOD VVFB rising (good) 85% 90% 95% VTHPG(UV) Power good undervoltage threshold VVFB falling (fault) 85% VVFB rising (fault) 110% 115% 120% VTHPG(OV) Power good overvoltage threshold VVFB falling (good) 110% IPG Sink current VPG = 0.5 V 2.5 5.0 mA OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION VOVP Output OVP trip threshold OVP detect 110% 115% 120% tOVPDEL Output OVP propagation delay 5 µs UVP detect 65% 70% 75% VUVP Output UVP trip threshold Hysteresis 10% tUVPDEL Output UVP delay 0.25 ms tUVPEN Output UVP enable delay Relative to soft-start time tSS×1.7 UNDERVOLTAGE LOCKOUT Wake-up VREG5 voltage threshold 3.55 3.80 4.05 UVLO V Hysteresis VREG5 voltage threshold 0.23 0.35 0.47 Copyright © 2013–2014, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS53511 |
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