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TPS51116 Fiches technique(PDF) 6 Page - Texas Instruments |
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TPS51116 Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 42 page TPS51116 SLUS609H – MAY 2004 – REVISED JULY 2009................................................................................................................................................................ www.ti.com ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range, VV5IN = 5 V, VLDOIN is connected to VDDQ output (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DUTY CONTROL TON Operating on-time VIN = 12 V, VVDDQSET = 0 V 520 TON0 Startup on-time VIN = 12 V, VVDDQSNS = 0 V 125 ns TON(min) Minimum on-time TA = 25°C (3) 100 TOFF(min) Minimum off-time TA = 25°C (3) 350 ZERO CURRENT COMPARATOR Zero current comparator VZC -6 0 6 mV offset OUTPUT DRIVERS Source, IDRVH = -100 mA 3 6 RDRVH DRVH resistance Sink, IDRVH = 100 mA 0.9 3 Ω Source, IDRVL = -100 mA 3 6 RDRVL DRVL resistance Sink, IDRVL = 100 mA 0.9 3 LL-low to DRVL-on(3) 10 TD Dead time ns DRVL-off to DRVH-on(3) 20 INTERNAL BST DIODE VFBST Forward voltage VV5IN-VBST , IF = 10 mA, TA = 25°C 0.7 0.8 0.9 V VVBST = 34 V, VLL = 28 V, VVDDQ = 2.6 V, IVBSTLK VBST leakage current 0.1 1.0 µA TA = 25°C PROTECTIONS VPGND-CS , PGOOD = HI, VCS < 0.5 V 50 60 70 VOCL Current limit threshold mV VPGND-CS , PGOOD = LO, VCS < 0.5 V 20 30 40 TA = 25°C, VCS > 4.5 V, PGOOD = HI 9 10 11 ITRIP Current sense sink current µA TA = 25°C, VCS > 4.5 V, PGOOD = LO 4 5 6 TRIP current temperature RDS(on) sense scheme, On the basis TCITRIP 4500 ppm/°C coefficient of TA = 25°C (3) Overcurrent protection (VV5IN-CS - VPGND-LL), VV5IN-CS = 60 mV, VOCL(off) -5 0 5 COMP offset VCS > 4.5 V (3) mV Current limit threshold setting VR(trip) VV5IN-CS (3) (4) 30 150 range POWERGOOD COMPARATOR PG in from lower 92.5% 95.0% 97.5% VTVDDQPG VDDQ powergood threshold PG in from higher 102.5% 105.0% 107.5% PG hysteresis 5% IPG(max) PGOOD sink current VVTT = 0 V, VPGOOD = 0.5 V 2.5 7.5 mA TPG(del) PGOOD delay time Delay for PG in 80 130 200 µs (3) Specified by design. (4) V5IN references to PWP packaged devices should be interpreted as V5FILT references to RGE packaged devices. 6 Submit Documentation Feedback Copyright © 2004–2009, Texas Instruments Incorporated Product Folder Link(s): TPS51116 |
Numéro de pièce similaire - TPS51116_12 |
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Description similaire - TPS51116_12 |
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