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TPS5172RHAR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS5172RHAR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 42 page  TPS51727 SLUS806A – APRIL 2008 – REVISED MAY 2008 .............................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) over recommended free-air temperature range, V5IN = V5FILT = 5.0 V GFB = PGND = GND, VFB = VOUT (Unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TIMERS: SLEW RATE, ISLEW, ON-TIME AND I/O TIMING ISLEW 1 RSLEW to GND Current RSLEW = 125 kΩ from ISLEW to GND 9.90 10.00 10.15 µA ISLEW 2 RSLEW to VREF Current RSLEW = 45 kΩ from VREF to ISLEW 9.5 10.2 10.8 µA ISLEW = |10 µA|, EN goes ‘HI’ (soft-start), VID Slew, Non-OVP SLSTRT VFB VID Change Slew Rate 9 13 16 mV/ µs Fault = Soft-stop Time from VVFB out of +200 mV VDAC boundary to PGOOD TPGDDGLTO PGOOD Deglitch Time 40 74 100 µs low Time from VVFB out of –300 mV VDAC boundary to PGOOD TPGDDGLTU PGOOD Deglitch Time 50 105 150 µs low VTON = GND, VLLx = 12 V, VVFB = 1 V 285 370 460 VTON = REF, VLLx = 12 V, VVFB = 1 V 200 250 300 TTON On-Time Control ns VTON = 3.3V, VLLx = 12 V, VVFB = 1 V 160 195 230 VTON = V5FILT, VLLx = 12 V, VFB = 1 140 170 200 TMIN Controller Minimum OFF time Fixed Value 95 129 155 ns TVIDDBNC VID Debounce Time (2) 100 ns TPCNTBNC PCNT Debounce Time(2) 100 ns TVCCVID VID Change to VFB Change(2) 1500 ns TENPGD EN Low to PGOOD Low 20 74 100 ns TPGDVCC PGOOD Low to VFB Change(2) 100 ns TTHALDGLT THAL Deglitch Time 0.7 1.1 3.0 ms RSFTSTP Soft-stop Transitor Resistance 600 850 1100 Ω PROTECTION: OVP, UVP, PGOOD, THAL, "FAULTS OFF" AND INTERNAL THRMAL SHUTDOWN VOVPH Fixed OVP Voltage VVFB > VOVPH for 1 µs, DRVL turns ON 1.65 1.70 1.75 V Measured at the VFB pin wrt / VID code. Device latches OFF, VPGDH PGOOD High Threshold 180 220 255 mV begins soft-stop Measured at the VFB pin wrt / VID code. IC latches off, VPGDL PGOOD Low Threshold –365 –325 –285 mV begins soft-stop VTHRM Thermal Alarm Voltage Measured at THRM; THAL goes LO 0.72 0.75 0.82 V ITHRM THRM Current Measure ITHRM to GND 57 61 67 µA VNOFLT All Faults OFF VTHRM > (VV5FILT + VTH); not latched 4.75 4.90 5.00 V THINT Not final tested. Latch off controller, attempt soft-stop 160 °C Internal Controller Thermal Shutdown(2) Not final tested. Controller starts again after temperature has THHYS Thermal Shutdown Hysteresis(2) 10 °C dropped LOGIC PINS: I/O VOLTAGE AND CURRENT VTHALL THAL Pull Down Voltage Pull down voltage with 20-mA sink current 0.15 0.4 V ITHALLK THAL Leakage Current Hi-Z Leakage Current, Apply 5-V in off state –2.0 0.2 2.0 µA VPGL PGOOD Pull Down Voltage Pull down voltage with 3-mA sink current 0.1 0.4 V IPGLK PGOOD Leakage Current Hi-Z Leakage Current, Apply 5 V in off state –2.0 0.1 2.0 µA VLV_H LV I/O Logic High PCNT, VID0, VID1, VID2, VID3, VID4 0.6 0.7 V VLV_L LV I/O Logic Low PCNT, VID0, VID1, VID2, VID3, VID4 0.3 0.4 V Leakage current, VVID = VPCNT = 1.0 V, VSLP = 3.3 V, VEN = 0 ILV_LK LV I/O Leakage –1.0 0.01 1.0 µA V IVIDLK LV I/O Leakage Leakage current, VVID = VPCNT = 1.0 V, VEN = 3.3 V 5 10 15 µA VV3P3H I/O 3.3 V Logic High EN, SLP 1.3 2.3 V VV3P3L I/O 3.3 V Logic Low EN, SLP 0.8 1.1 V IENH I/O 3.3 V Leakage Leakage current, VEN = 3.3 V 10.0 25.0 µA ISLPH I/O 3.3 V Leakage Leakage current, VEN = 3.3 V; VSLP = 3.3 V 20.0 45.0 µA IVIDL VVID0 = VVID1 = VVID2 = VVID3 = VVID4 = 0 V, VEN = 3.3 V –3 –1.5 1 µA IDACS VDACS = 5 V, VEN = 3.3 V 25 75 µA ISELECT VTRIPSEL = VOSRSEL = VTONSEL = 5 V –2 1.5 5 µA (2) Ensured by design. Not production tested. 6 Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPS51727 |
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