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TPS658621A Fiches technique(PDF) 8 Page - Texas Instruments |
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TPS658621A Fiches technique(HTML) 8 Page - Texas Instruments |
8 / 105 page TPS658621A SLVSA58 – DECEMBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RESUME CONTROL TIMING TRESUME(H) RESUME pulse width high (1) 550 ms TRESUME(L) RESUME pulse width low (1) 1500 ms SEQUENCER REBOOT CONTROL Reboot started when normal state is set and VHOTRST Reboot control threshold V(HOT_RST) < VREBOOT for 0.4 V t > TDT(HRST) THRST(H) HOT_RST max pulse width 60 ms TDT(HRST) HOT_RST min detection pulse width HOT_RST deglitch 4 16 μs EXTERNAL SUPPLY DETECTION AND STATUS System voltage V(SYS) decreasing. 3.0 V VLOWSYS Minimum system voltage detection threshold Total accuracy, referenced to V(LOWSYS)TYP -2 2 % VHYS(LOWSYS) Minimum system voltage detection hysteresis V(SYS) increasing from decreasing trigger point 200 mV Minimum system voltage detection deglitch TDGL(LOWSYS) V(SYS) decreasing 5 ms time Input voltage detection threshold. Input voltage AC detected when V(AC)–V(BAT) > VIN(DT) AND V(AC) > VACMIN VIN(DT) 180 mV increasing, referenced to battery voltage USB detected when V(USB)–V(BAT) > VIN(DT) AC not detected: Input voltage removal threshold. Input voltage VIN(NDT) when V(AC)–V(BAT) < VIN(NDT) USB not detected when 65 mV decreasing, referenced to battery voltage V(USB)–V(BAT)< VIN(NDT) AC voltage decreasing , AC not detected when V(AC) < VACMIN 3.5 V VACMIN AC detection threshold, relative to GND Hysteresis, AC voltage increasing 200 mV TDGLAC(DT) AC Power detected deglitch AC voltage increasing 22.5 ms TDGLUSB(DT) USB Power detected deglitch USB voltage increasing 5.5 ms VIN(OVP) Input over voltage detection 5.8 6.0 6.3 V TDLY(INOVP) Input over voltage detection delay Rising AC or USB voltage 100 μs ANALOG COMPARATOR VCOMPDET Voltage threshold Enabled at sleep mode not set 1.21 1.245 1.28 V IQCDET Bias current (1) Always On 5 μA V(COMP):0 →1.5V→0, measured from input to TP Propagation time 50 μs NOPOWER:HI →LO (1) Not production tested. 8 ELECTRICAL SPECIFICATIONS Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TPS658621A |
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