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TPS5420QDRQ1 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS5420QDRQ1 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 22 page ELECTRICAL CHARACTERISTICS TPS5420-Q1 www.ti.com................................................................................................................................................... SLVS752B – NOVEMBER 2007 – REVISED JUNE 2008 TJ = –40°C to 125°C, VIN = 5.5 V to 36 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE (VIN PIN) VSENSE = 2 V, Not switching, PH pin open 3 4.4 mA IQ Quiescent current Shutdown, ENA = 0 V 18 50 µA UNDERVOLTAGE LOCKOUT (UVLO) Start threshold voltage, UVLO 5.3 5.5 V Hysteresis voltage, UVLO 330 mV VOLTAGE REFERENCE TJ = 25°C 1.202 1.221 1.239 Voltage reference accuracy V IO = 0 A to 2 A 1.196 1.221 1.245 OSCILLATOR Internally set free-running frequency 400 500 600 kHz Minimum controllable on time 150 200 ns Maximum duty cycle 87% 89% ENABLE (ENA PIN) Start threshold voltage, ENA 1.3 V Stop threshold voltage, ENA 0.5 V Hysteresis voltage, ENA 450 mV Internal slow-start time (0 ~ 100%) 5.4 8 10 ms CURRENT LIMIT Current limit 3 4 6.5 A Current-limit hiccup time 13 16 21 ms THERMAL SHUTDOWN Thermal shutdown trip point 135 162 °C Thermal shutdown hysteresis 14 °C OUTPUT MOSFET VIN = 5.5 V 150 rDS(on) High-side power MOSFET switch m Ω VIN = 10 V to 36 V 110 230 Copyright © 2007–2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS5420-Q1 |
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