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TPS40322 Datasheet(PDF) 8 Page - Texas Instruments |
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TPS40322 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 47 page  TPS40322 SLUSAF8E – JULY 2011 – REVISED JANUARY 2016 www.ti.com Electrical Characteristics (continued) TJ = –40°C to 125°C, VVDD = 12 V, RRT = 40 kΩ, fSW = 500 kHz (unless otherwise noted), PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ENABLE AND SOFT START VIH High-level input voltage 0.55 0.7 1 V VIL Low-level input voltage 0.23 0.26 0.3 V ISS Soft-start source current 8 10 12 μA VSS Soft-start voltage level 0.8 V IDISCHG Soft-start discharge current 130 μA OVERCURRENT PROTECTION IILIM ILIM program current TJ = 25°C 9.5 10 10.5 μA tHICCUP Hiccup cycles to recover 6 Cycles CURRENT SENSE AMPLIFIER VDIFF Differential input voltage range –60 60 mV VCM Input common mode range 0 5.6 V ACS Current sensing gain 15 V/V VCSOUT Current sense amplifier output VCSIN = 20 mV, TJ = 25°C 270 300 330 mV fC0 Closed loop bandwidth(1) 3 MHz Current sense amplifier output difference VCSIN = 20 mV to both CS1 and CS2 –15 15 mV between CH1 and CH2 OVERVOLTAGE AND UNDERVOLTAGE PROTECTION VOVP Feedback voltage limit for OVP 679 700 735 mV VUVP Feedback voltage limit for UVP 475 500 525 mV GATE DRIVERS RHDHI High-side driver pull-up resistance VBOOT – VSW = 6.5 V, IHDRV = –40 mA 0.8 1.5 2.5 Ω RHDLO High-side driver pull-down resistance VBOOT – VSW = 6.5 V, IHDRV = 40 mA 0.5 1 1.6 Ω RLDHI Low-side driver pull-up resistance ILDRV = –40 mA 0.8 1.5 2.5 Ω RLDLO Low-side driver pull-down resistance ILDRV = 40 mA 0.35 0.6 1.3 Ω tHRISE High-side driver rise time CLOAD = 5 nF, See (1) 15 ns tHFALL High-side driver fall time CLOAD = 5 nF, See (1) 12 ns tLRISE Low-side driver rise time CLOAD = 5 nF, See (1) 15 ns tLFALL Low-side driver fall time CLOAD = 5 nF, See (1) 10 ns BOOT SWITCH VDFWD Bootstrap switch voltage drop IBOOT = 5 mA 0.1 V REMOTE SENSE VIOFSET Input offset voltage VDIFFO = 0.9 V –2 2 mV Gain Differential gain 0.995 1.005 V/V BW Close loop bandwidth(1) 2 MHz VDIFFO Output voltage at DIFFO pin VBP6 – 0.2 V ISRC Output source current 1 mA ISNK Output sink current 1 mA POWERGOOD VOV Feedback voltage limit for PGOOD 650 675 697 mV VUV Feedback voltage limit for PGOOD 510 525 545 mV VPGD(hyst) PGOOD hysteresis voltage at FB 25 40 mV RRGD PGOOD pull down resistance 50 70 Ω IPGD(leak) PGOOD leakage current 20 µA THERMAL SHUTDOWN TSD Junction shutdown temperature See (1) 150 °C TSD(hyst) Hysteresis See (1) 20 °C 8 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated Product Folder Links: TPS40322 |
Similar Part No. - TPS40322_16 |
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Similar Description - TPS40322_16 |
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