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TPS54326RGTT Fiches technique(PDF) 4 Page - Texas Instruments |
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TPS54326RGTT Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 30 page VO VFB VREG5 SS GND PG EN VCC VIN VBST SW2 SW1 PGND2 PGND1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 POWERPAD TPS54326 SLVSA13E – OCTOBER 2009 – REVISED JUNE 2012 www.ti.com ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range, VCC, VIN = 12V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ON-TIME TIMER CONTROL tON On time VIN = 12 V, VO = 1.05 V 145 ns tOFF(MIN) Minimum off time TA = 25°C, VFB = 0.7 V 260 310 ns SOFT START ISSC SS charge current VSS = 0 V 1.4 2 2.6 μA ISSD SS discharge current VSS = 0.5 V 0.1 0.2 mA POWER GOOD VFB rising (good) 85 90 95 VTHPG Threshold % VFB falling (fault) 85 IPG Sink current PG = 0.5 V 2.5 5 mA OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION VOVP Output OVP trip threshold OVP detect 115 120 125 % tOVPDEL Output OVP prop 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 x 1.7 UVLO Wake up VREG5 voltage 3.55 3.8 4.05 UVLO Threshold V Hysteresis VREG5 voltage 0.23 0.35 0.47 DEVICE INFORMATION PWP PACKAGE (TOP VIEW) 4 Copyright © 2009–2012, Texas Instruments Incorporated Product Folder Link(s) :TPS54326 |
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