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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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TPS51117RGYRG4 Scheda tecnica(PDF) 4 Page - Texas Instruments |
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TPS51117RGYRG4 Scheda tecnica(HTML) 4 Page - Texas Instruments |
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4 / 31 page  TPS51117 SLVS631B – DECEMBER 2005 – REVISED SEPTEMBER 2009...................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (Continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INTERNAL BST DIODE VFBST Forward voltage VV5DRV-VBST, IF = 10 mA, TA = 25°C 0.7 0.8 0.9 V IVBSTLK VBST leakage current VBST = 34 V, LL = 28 V 0.1 1 μA UVLO/LOGIC THRESHOLD Wake up 3.7 3.9 4.1 V VUVLO V5FILT UVLO Threshold Hysteresis 200 300 400 mV EN_PSV low 0.7 1.0 1.3 V Hysteresis 150 200 250 mV EN_PSV logic input VEN_PSV EN_PSV float (set PWM_only mode) 1.7 1.95 2.25 V voltage EN_PSV high (set Auto_skip mode) 2.4 2.65 2.9 V Hysteresis 100 175 250 mV IEN_PSV EN_PSV source current EN_PSV = GND, absolute value(1) 1 μA POWERGOOD COMPARATOR PG in from lower (PGOOD goes high) 92.5% 95% 97.5% PG low hysteresis (PGOOD goes low) –4% –5.5% –7% VTHPG PG threshold PG in from higher (PGOOD goes high) 102% 105% 107% PG high hysteresis (PGOOD goes low) 4% 5.5% 7% IPGMAX PG sink current PGOOD = 0.5 V 2.5 7.5 mA TPGDEL PG delay Delay for PGOOD in 45 63 85 μs CURRENT SENSE ITRIP TRIP source current VTRIP < 0.3 V, TA = 25°C 9 10 11 μA ITRIP temperature TCITRIP On the basis of 25°C 4500 ppm/°C coefffecient Current limit threshold VRtrip VTRIP-GND voltage (1), all temperatures 30 200 mV range setting range Overcurrent limit VOCLoff (VTRIP-GND-VPGND-LL) voltage VTRIP-GND = 60 mV –10 0 10 mV comparator offset Negative overcurrent limit (VTRIP-GND-VLL-PGND) voltage VTRIP-GND = 60 mV, VUCLoff –9.5 0.5 10.5 mV comparator offset EN_PSV = float Zero crossing comparator VZCoff VPGND-LL voltage, EN_PSV = 3.3 V –9.5 0.5 10.5 mV offset UNDERVOLTAGE AND OVERVOLTAGE PROTECTION VOVP VFB OVP trip threshold OVP detect 111% 115% 119% VFB OVP propagation TOVPDEL See (1) 1.5 μs delay UVP detect 65% 70% 75% VUVP VFB UVP trip threshold Hysteresis 10% TUVPDEL VFB UVP delay 22 32 42 μs TUVPEN UVP enable delay After 1.7 × TSS, UVP protection engaged 1.4 2 2.6 ms THERMAL SHUTDOWN Shutdown temperature(1) 160 °C Thermal shutdown TSDN threshold Hysteresis(1) 12 °C (1) Ensured by design. Not production tested. 4 Submit Documentation Feedback Copyright © 2005–2009, Texas Instruments Incorporated Product Folder Link(s) :TPS51117 |
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