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TPS40071PWP датащи(PDF) 4 Page - Texas Instruments |
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TPS40071PWP датащи(HTML) 4 Page - Texas Instruments |
4 / 30 page TPS40070 TPS40071 SLUS582J – DECEMBER 2003 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) TA = –40°C to 85°C, VIN = 12 Vdc, RT = 90.9 kΩ, IKFF = 300 A, fSW = 500 kHz, all parameters at zero power dissipation (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SHORT CIRCUIT CURRENT PROTECTION IILIM Current sink into current limit 80 105 125 µA VILIM(ofst) Current limit offset voltage VILIM = 11.5 V, (VSW - VILIM) VDD = 12 V –75 –50 –30 mV tHSC Minimum HDRV pulse width During short circuit 135 225 ns Propagation delay to output(3) 50 ns tBLANK Blanking time(3) 50 ns tOFF Off time during a fault (SS cycle times) 7 cycles VSW Switching level to end precondition(3) (VDD - VSW) 2 V tPC Precondition time(3) 100 ns VILIM Current limit precondition voltage threshold(3) 6.8 V OUTPUT DRIVERS tHFALL High-side driver fall time(3) 36 CHDRV = 2200 pF, (HDRV - SW) ns tHRISE High-side driver rise time(3) 48 tHFALL High-side driver fall time(3) 72 CHDRV = 2200 pF, (HDRV - SW) ns VDD = 4.5 V, 0.2 V ≤ VSS≤ 4 V tHRISE High-side driver rise time(3) 96 tLFALL Low-side driver fall time(3) 24 CLDRV = 2200 pF ns tLRISE Low-side driver rise time(3) 48 tLFALL Low-side driver fall time(3) 48 CLDRV = 2200 pF, VDD= 4.5 V, ns 0.2 V ≤ VSS≤ 4 V tLRISE Low-side driver rise time(3) 96 IHDRV = -0.01 A, (VBOOST- VHDRV) 0.7 1.0 VOH High-level output voltage, HDRV V IHDRV = -0.1 A, (VBOOST - VHDRV) 0.95 1.30 (VHDRV - VSW), IHDRV = 0.01A 0.06 0.10 VOL Low-level output voltage, HDRV V (VHDRV - VSW), IHDRV = 0.1 A 0.65 1.0 (VDBP - VLDRV), ILDRV= -0.01A 0.65 1.00 VOH High-level output voltage, LDRV V (VDBP - VLDRV), ILDRV = -0.1 A 0.875 1.200 ILDRV = 0.01 A 0.03 0.05 VOL Low-level output voltage, LDRV V ILDRV = 0.1 A 0.3 0.5 ZERO CURRENT DETECTION IZERO Zero current threshold, TPS40070 –5 0 5 mV BOOST REGULATOR VBOOST Output voltage VDD = 12 V 15.2 17.0 V UVLO VUVLO Programmable UVLO threshold voltage RKFF = 90.9 kΩ, turn-on, VDD rising 6.2 7.2 8.2 Programmable UVLO hysteresis RKFF = 90.9 kΩ 1.10 1.55 2.00 V Fixed UVLO threshold voltage Turn-on, VDD rising 4.15 4.30 4.45 Fixed UVLO hysteresis 275 365 mV POWER GOOD VPG Powergood voltage IPG = 1 mA 370 500 VOH High-level output voltage, FB 770 mV VOL Low-level output voltage, FB 630 THERMAL SHUTDOWN Shutdown temperature threshold(3) 165 °C Hysteresis(3) 15 (3) Ensured by design. Not production tested. 4 Submit Documentation Feedback Copyright © 2003–2009, Texas Instruments Incorporated Product Folder Link(s): TPS40070 TPS40071 |
Аналогичный номер детали - TPS40071PWP |
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Аналогичное описание - TPS40071PWP |
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