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TPS55010 Fiches technique(PDF) 6 Page - Texas Instruments |
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TPS55010 Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 46 page TPS55010 SLVSAV0B – APRIL 2011 – REVISED OCTOBER 2014 www.ti.com Electrical Characteristics (continued) TJ = –40°C TO 150°C, VIN = 2.95V TO 6V (unless otherwise noted) DESCRIPTION CONDITIONS MIN TYP MAX UNIT RT/CLK RT/CLK voltage R(RT/CLK) = 195 kΩ 0.5 V RT/CLK high threshold 1.6 2.2 V RT/CLK low threshold 0.4 0.6 V BOOT Boot UVLO 2.5 V SS Slow Start Charge current V(SS) = 0.4 V 0.5 2.2 4 µA SS to VSENSE matching V(SS) = 0.4 V 35 mV SS to reference Crossover 98% reference 1.1 V SS discharge current (overload) VSENSE = 0 V 325 µA SS discharge voltage VSENSE = 0V 46 mV SS discharge current (UVLO, EN, thermal fault) V(SS) = 0.5 V 1.2 mA VIN UVLO to SS start time 100 µs FAULT Pin VSENSE falling 91 % VREF VSENSE threshold VSENSE rising 108 % VREF Output high leakage VSENSE = VREF, V(FAULT) = 5.5 V 2 nA Output low I(FAULT) = 3 mA 0.3 V Minimum VIN for valid output V(FAULT) < 0.5 V at 100 µA 1.6 V 7.6 Timing Requirements MIN TYP MAX UNIT RT/CLK Minimum CLK pulse width 75 ns 7.7 Switching Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PH ton Minimum on time Measured at 10% to 10% of VIN 130 ns toff Minimum off time V(BOOT-PH) ≥ 3 V 0% RT/CLK Switching frequency using CLK mode 300 2000 kHz Switching frequency using RT mode 100 2000 kHz Switching Frequency R(RT/CLK) = 195 kΩ 400 500 600 kHz PLL lock in time 50 µs RT/CLK falling edge to PH rising edge 90 ns delay SS Slow Start VIN UVLO to SS start time 100 µs 6 Submit Documentation Feedback Copyright © 2011–2014, Texas Instruments Incorporated Product Folder Links: TPS55010 |
Numéro de pièce similaire - TPS55010_15 |
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Description similaire - TPS55010_15 |
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