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TPS51518 Fiches technique(PDF) 4 Page - Texas Instruments |
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TPS51518 Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 35 page TPS51518 SLUSAO8 – DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS over operating free-air temperature range, VV5IN= 5 V, VMODE= 5 V, VEN= 3.3 V (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT SUPPLY CURRENT IV5IN V5IN supply current TA = 25°C, No load, VEN = 5 V, VMODE = 5 V 560 μA IV5SDN V5IN shutdown current TA = 25°C, No load, VEN = 0 V 1 μA VREF OUTPUT VVREF Output voltage IVREF = 30 µA, w/r/t GSNS 2.000 V 0 µA ≦ IVREF < 30 µA, 0°C ≦ TA < 85°C –0.8% 0.8% VVREFTOL Output voltage tolerance 0 µA ≦ IVREF < 300 µA, –10°C ≦ TA < 105°C –1% 1% IVREFOCL Current limit VVREF-GSNS = 1.7 V 0.4 1.0 mA OUTPUT VOLTAGE VSLEWCLP SLEW clamp voltage VREFIN = 1 V 0.92 1.08 V gM Error amplifier transconductance VREFIN = 1 V 60 µS IVSNS VSNS input current VVSNS = 1.0 V –1 1 μA IVSNSDIS VSNS discharge current VEN = 0 V, VVSNS = 0.5 V, VMODE = 0 V 12 mA SMPS FREQUENCY fSW Switching frequency VIN = 12 V, VVSNS = 1.0 V, VMODE = 0 V 350 kHz tON(min) Minimum on-time DRVH rising to falling 40 ns tOFF(min) Minimum off-time DRVH falling to rising 320 DRIVERS Source, IDRVH = 50 mA 1.7 RDH High-side driver resistance Ω Sink, IDRVH = 50 mA 0.8 Source, IDRVL = 50 mA 1.1 RDL Low-side driver resistance Ω Sink, IDRVL = 50 mA 0.6 INTERNAL BOOT STRAP SW VFBST Forward voltage VV5IN-BST, TA = 25°C, IF = 10 mA 0.1 0.2 V IBST BST leakage current TA = 25°C, VBST = 33 V, VSW = 28 V 0.01 1.50 μA LOGIC THRESHOLD AND TIMING VVIDx(LL) VID1/VID0 low-level voltage 0.3 V VVIDx(LH) VID1/VID0 high-level voltage 0.9 V VVIDx(HYST) VID1/VID0 hysteresis voltage 0.4 V IVIDx(LLK) VID1/VID0 input leakage current –1 0 1 μA VEN(LL) EN low-level voltage 0.5 V VEN(LH) EN high-level voltage 1.5 V VEN(HYST) EN hysteresis voltage 0.25 V IEN(LLK) EN input leakage current –1 1 nA SOFT START/SLEW RATE ISS Soft-start current Soft-start current source 10 μA ISLEW Slew control current 50 μA 4 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS51518 |
Numéro de pièce similaire - TPS51518_15 |
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Description similaire - TPS51518_15 |
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