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TPS5401DGQ Datasheet(PDF) 4 Page - Texas Instruments |
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TPS5401DGQ Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 41 page  TPS5401 SLVSAB0 – DECEMBER 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) TJ = –40°C to 150°C, VIN = 3.5 V to 42 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN) Switching-frequency range using RT 100 2500 kHz mode fSW Switching frequency RT = 200 kΩ 450 581 720 kHz Switching-frequency range using 300 2200 kHz CLK mode Minimum CLK input pulse width 40 ns RT/CLK high threshold 1.9 2.2 V RT/CLK low threshold 0.5 0.7 V RT/CLK falling edge to PH rising Measured at 500 kHz with RT resistor in series 60 ns edge delay PLL lock-in time Measured at 500 kHz 100 ms SLOW-START AND TRACKING (SS/TR PIN) Charge current VSS/TR = 0.4 V 2 mA SS/TR-to-VSENSE matching VSS/TR = 0.4 V 45 mV SS/TR-to-reference crossover 98% nominal 1 V SS/TR discharge current (overload) VVSENSE = 0 V, VSS/TR = 0.4 V 112 mA SS/TR discharge voltage VVSENSE = 0 V 54 mV POWER GOOD (PWRGD PIN) VVSENSE falling 92% VSENSE low threshold Vref VVSENSE rising 94% VVSENSE rising 109% VSENSE high threshold Vref VVSENSE falling 107% Hysteresis VVSENSE falling 2% Output-high leakage VVSENSE = Vref, VPWRGD = 5.5 V, 25°C 10 nA On-resistance IPWRGD = 3 mA, VVSENSE < 0.77 V 50 Ω Minimum VIN for defined output VPWRGD < 0.5 V, IPWRGD = 100 mA 0.95 1.5 V 4 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): TPS5401 |
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