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TPS54218 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS54218 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 40 page TPS54218 SLVS974C – SEPTEMBER 2009 – REVISED DECEMBER 2014 www.ti.com Electrical Characteristics (continued) –40°C ≤ TJ ≤ 150°C, 2.95 ≤ VVIN ≤ 6 V (unless otherwise noted) over operating free-air temperature range PARAMETER TEST CONDITIONS MIN TYP MAX UNIT HIGH-SIDE POWER MOSFET (PH) Measured at 50% points on PH, IOUT = 2 60 tON(min) Minimum on time ns Measured at 50% points on PH, VVIN = 5 V, 110 IOUT = 0 A Prior to skipping off pulses, tOFF(min) Minimum off time 60 ns (VBOOT – VPH) = 2.95 V, IOUT = 2 tRISE Rise time VVIN = 5 V 1.5 V/ns tFALL Fall time VVIN = 5 V 1.5 V/ns BOOT (BOOT) RBOOT BOOT charge resistance VVIN = 5 V 16 Ω VUVLO(Boot) BOOT-PH UVLO VVIN = 2.95 V 2.1 V SOFT-START (SS ) ICHG Charge current VSS = 0.4 V 1.8 μA VSSxREF SS to reference crossover 98% nominal 0.9 V VDSCHG(SS) SS discharge voltage (overload) VVSENSE = 0 V 20 μA SS discharge current (UVLO, IDSCHG(SS) VVIN = 5 V, VSS = 0.5 V 1.25 mA EN, thermal fault) POWER GOOD (PWRGD) VVSENSE falling (fault) 91% VVSENSE rising (good) 93% VTH(PG) VSENSE threshold VVSENSE rising (fault) 107% VREF VVSENSE falling (Good) 105% VHYST(PG) Hysteresis VVSENSE falling 2% IPH(lkg) Output high leakage VVSENSE = VREF, VPWRGD = 5.5 V 2 nA RPG Power Good on-resistance 100 Ω VOL Low-level output voltage IPWRGD = 3.5 mA 0.3 V Minimum input voltage for valid VMIN(PG) VPWRGD < 0.5 V , IOUT = 100 μA 1.2 1.6 V output 6 Submit Documentation Feedback Copyright © 2009–2014, Texas Instruments Incorporated Product Folder Links: TPS54218 |
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