Datasheet

DRV8821
SLVS912H –JANUARY 2009–REVISED AUGUST 2013 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
OCP
Overcurrent protect level 1.5 3 4.5 A
t
OCP
Overcurrent protect trip time 2.5 μs
t
MD
Mixed decay percentage Measured from beginning of PWM cycle 75 %
VREF INPUT/CURRENT CONTROL ACCURACY
I
REF
xVREF input current xVREF = 3.3 V –3 3 μA
xVREF = 2.5 V, derived from V3P3;
–5 5 %
71% to 100% current
ΔI
CHOP
Chopping current accuracy
xVREF = 2.5 V, derived from V3P3;
–10 10 %
20% to 56% current
6 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: DRV8821