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DRV8824 Datasheet(PDF) 6 Page - Texas Instruments |
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DRV8824 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 35 page DRV8824 SLVSA06J – OCTOBER 2009 – REVISED JULY 2014 www.ti.com 7.5 Electrical Characteristics over operating free-air temperature range of –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SUPPLIES IVMx VMx operating supply current V(VMx) = 24 V, ƒPWM < 50 kHz 5 8 mA IVMxQ VMx sleep mode supply current V(VMx) = 24 V 10 20 μA V3P3OUT REGULATOR IOUT = 0 to 1 mA, V(VMx) = 24 V, TJ = 25°C 3.18 3.30 3.42 V3P3 V3P3OUT voltage V IOUT = 0 to 1 mA 3.10 3.30 3.50 LOGIC-LEVEL INPUTS VIL Input low voltage 0 0.7 V VIH Input high voltage 2 5.25 V VHYS Input hysteresis 0.45 V IIL Input low current VIN = 0 –20 20 μA IIH Input high current VIN = 3.3 V 100 μA nENBL, nRESET, DIR, STEP, MODEx 100 k Ω RPD Internal pulldown resistance nSLEEP 1 M Ω nHOME, nFAULT OUTPUTS (OPEN-DRAIN OUTPUTS) VOL Output low voltage IO = 5 mA 0.5 V IOH Output high leakage current VO = 3.3 V 1 μA DECAY INPUT VIL Input low threshold voltage For slow decay mode 0.8 V VIH Input high threshold voltage For fast decay mode 2 V IIN Input current –100 100 µA RPU Internal pullup resistance 130 k Ω RPD Internal pulldown resistance 80 k Ω H-BRIDGE FETS V(VMx) = 24 V, IO = 1 A, TJ = 25°C 0.63 RDS(ON) HS FET on resistance Ω V(VMx) = 24 V, IO = 1 A, TJ = 85°C 0.76 0.90 V(VMx) = 24 V, IO = 1 A, TJ = 25°C 0.65 RDS(ON) LS FET on resistance Ω V(VMx) = 24 V, IO = 1 A, TJ = 85°C 0.78 0.90 IOFF Off-state leakage current –20 20 μA MOTOR DRIVER ƒPWM Internal PWM frequency 50 kHz tBLANK Current sense blanking time 3.75 μs tR Rise time V(VMx) = 24 V 100 360 ns tF Fall time V(VMx) = 24 V 80 250 ns tDEAD Dead time 400 ns PROTECTION CIRCUITS VUVLO VMx undervoltage lockout voltage V(VMx) rising 7.8 8.2 V IOCP Overcurrent protection trip level 1.8 5 A tDEG Overcurrent deglitch time 3 µs TTSD Thermal shutdown temperature Die temperature 150 160 180 °C CURRENT CONTROL IREF xVREF input current V(xVREF) = 3.3 V –3 3 μA VTRIP xISENSE trip voltage V(xVREF) = 3.3 V, 100% current setting 635 660 685 mV 6 Submit Documentation Feedback Copyright © 2009–2014, Texas Instruments Incorporated Product Folder Links: DRV8824 |
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