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TPS54356PWP Datasheet(PDF) 6 Page - Texas Instruments |
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TPS54356PWP Datasheet(HTML) 6 Page - Texas Instruments |
6 / 28 page TPS54352,TPS54353 TPS54354,TPS54355 TPS54356,TPS54357 SLVS519 − MAY 2004 www.ti.com 6 ELECTRICAL CHARACTERISTICS (CONTINUED) TJ = –40°C to 125°C, VIN = 4.5 V to 20 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CURRENT LIMIT Current limit VIN = 12 V 3.3 4.5 6.5 A Current limit hiccup time (1) fs = 500 kHz 4.5 ms THERMAL SHUTDOWN Thermal shutdown trip point (1) 165 _C Thermal shutdown hysteresis (1) 7 _C LOW SIDE MOSFET DRIVER (LSG PIN) Turn on rise time, (10%/90%) (1) VIN = 4.5 V, Capacitive load = 1000 pF 15 ns Deadtime (1) VIN = 12 V 60 ns Driver ON resistance VIN = 4.5 V sink/source 7.5 Ω Driver ON resistance VIN = 12 V sink/source 5 Ω OUTPUT POWER MOSFETS (PH PIN) Phase node voltage when disabled DC conditions and no load, ENA = 0 V 0.5 V Voltage drop, low side FET and diode VIN = 4.5 V, Idc = 100 mA 1.13 1.42 V Voltage drop, low side FET and diode VIN = 12 V, Idc = 100 mA 1.08 1.38 V rDS(ON) High side power MOSFET switch (2) VIN = 4.5 V, BOOT−PH = 4.5 V, IO = 0.5 A 150 300 m Ω rDS(ON) High side power MOSFET switch (2) VIN = 12 V, BOOT−PH = 8 V, IO = 0.5 A 100 200 m Ω (1) Ensured by design, not production tested. (2) Resistance from VIN to PH pins. |
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