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DRV8809A0PAP 数据表(PDF) 10 Page - Texas Instruments |
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DRV8809A0PAP 数据表(HTML) 10 Page - Texas Instruments |
10 / 44 page DRV8809 DRV8810 SLVS854A – JULY 2008 – REVISED JULY 2008 ............................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) TJ = 0°C to 120°C, VM = 7 V to 40 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT H-Bridge Drivers (OUTx+ and OUTx–) IOUT1(max) Peak output current 1 Less than 500-ns period 8 A IOUT2(max) Peak output current 2 Less than 100-ms period 3 A Average continuous output IOUT(max) 0.8 A current TJ = 25°C 0.55 Rds(ON) FET ON resistance at 0.8 A Ω TJ = 120°C 1 ICEX Output leakage current VOUTX = 0 V or 10 V 10 µA IRS Sense resistor supply current nORT = Low 15 µA Motor overcurrent threshold for IOC Motor 3 5 A each H-bridge(6) tfilterM Motor overcurrent filter time 2.5 5 8.5 µs fOSCM Motor oscillator frequency F_OSCM = (0,0) 720 800 880 kHz Motor chopping frequency = fchop F_OSCM = (0,0) 90 100 110 kHz fOSCM/8 Stepper Motor Drive (Parameters Are Tested Without Motor Loading) Average stepper motor current ISTEPMOTORAVG VM = 40 V 800 mA for H-bridge Peak stepper motor current ISTEPMOTORPeak VM = 40 V 1.3 A for H-bridge VL16 , Phase angle = 90° 100 VL15 , Phase angle = 84° 100 VL14 , Phase angle = 79° 98 VL13 , Phase angle = 73° 96 VL12 , Phase angle = 68° 92 VL11 , Phase angle = 62° 88 VL10 , Phase angle = 56° 83 VL9 , Phase angle = 51° 77 Stepper motor current limit threshold VL8 , Phase angle = 45° 71 % (internal reference)(7) VL7 , Phase angle = 40° 63 VL6 , Phase angle = 34° 56 VL5 , Phase angle = 28° 47 VL4 , Phase angle = 23° 38 VL3 , Phase angle = 17° 29 VL2 , Phase angle = 11° 20 VL1 , Phase angle = 6° 10 VL0 , Phase angle = 0° 0 Output current accuracy at 100% Excludes VREF and RSENS errors, IOUT –5 5 % setting(7) IOUT > 1 A (7) (8) Switch (driver MOSFET) leakage IswLeakage Outputs off –10 10 µA current tab Stepper motor blanking time By OSCi cycles 8 9 cycles (6) When the overcurrent is detected, all H-bridges are shut down and assert nORT pulse (40 ms). (7) This is not measured directly, checked by Itrip amplifier gain without motor loading (8) This device may show current setting error when motor current is less than 1 A, due to noise filter delay at the Itrip comparator. 10 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): DRV8809 DRV8810 |
类似零件编号 - DRV8809A0PAP |
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类似说明 - DRV8809A0PAP |
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