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DRV8842-EP Datasheet(PDF) 6 Page - Texas Instruments |
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DRV8842-EP Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 26 page  DRV8842-EP SLVSCH4 – JULY 2014 www.ti.com 7.5 Electrical Characteristics over recommended operating junction temperature range PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SUPPLIES IVM VM operating supply current VM = 24 V, ƒPWM < 50 kHz 5 8 mA IVMQ VM sleep mode supply current VM = 24 V 10 20 μA VUVLO VM undervoltage lockout voltage VM rising 7.8 8.4 V V3P3OUT REGULATOR V3P3 V3P3OUT voltage IOUT = 0 to 1 mA 3.1 3.3 3.5 V LOGIC-LEVEL INPUTS VIL Input low voltage 0.6 0.7 V VIH Input high voltage 2.2 5.25 V VHYS Input hysteresis 0.3 0.45 0.65 V IIL Input low current VIN = 0 –20 20 μA IIH Input high current VIN = 3.3 V 33 100 μA RPD Internal pulldown resistance 100 k Ω nFAULT OUTPUT (OPEN-DRAIN OUTPUT) 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 (brake) mode 0 0.8 V VIH Input high threshold voltage For fast decay (coast) mode 2 V IIN Input current ±40 μA RPU Internal pullup resistance (to 3.3 V) 130 k Ω RPD Internal pulldown resistance 80 k Ω H-BRIDGE FETS RDS(ON) HS FET on resistance VM = 24 V, IO = 1 A 0.13 0.17 Ω RDS(ON) LS FET on resistance VM = 24 V, IO = 1 A 0.13 0.17 Ω IOFF Off-state leakage current –79 96 μA PROTECTION CIRCUITS IOCP Overcurrent protection trip level 5 A tTSD Thermal shutdown temperature Die temperature 150 160 180 °C CURRENT CONTROL IREF VREF input current V(VREF) = 3.3 V –3 3 μA VTRIP ISENSE trip voltage V(VREF) = 3.3 V, 100% current setting 635 660 685 mV V(VREF) = 3.3 V, 5% current setting –25% 25% V(VREF) = 3.3 V, 10% to 34% current setting –15% 15% Current trip accuracy ΔITRIP (relative to programmed value) V(VREF) = 3.3 V, 38% to 67% current setting –10% 10% V(VREF) = 3.3 V, 71% to 100% current setting –5% 5% AISENSE Current sense amplifier gain Reference only 5 V/V 7.6 Motor Driver Timing Requirements MIN TYP MAX UNIT ƒPWM Internal current control PWM frequency 50 kHz tBLANK Current sense blanking time 3.75 μs tR Rise time 30 220 ns tF Fall time 30 220 ns 6 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DRV8842-EP |
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