DRV8821_10 Datasheet, PDF (6/16 Pages) Texas Instruments – DUAL STEPPER MOTOR CONTROLLER/DRIVER

DRV8821
SLVS912C – JANUARY 2009 – REVISED JANUARY 2010
TIMING REQUIREMENTS
over operating free-air temperature range (unless otherwise noted)
1
f_STEP
2
t_WH(STEP)
3
t_WL(STEP)
4
t_SU(STEP)
5
t_H(STEP)
6
t_WAKE
Step frequency
Pulse duration, xSTEP high
Pulse duration, xSTEP low
Setup time, command to xSTEP rising
Hold time, command to xSTEP rising
Wakeup time, SLEEPn inactive to xSTEP
xSTEP
1
2
3
xDIR, xUSMx
ABENBLn
& CDENBLn
45
6
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MIN MAX UNIT
200 kHz
2.5
ms
2.5
ms
200
ns
200
ns
1
ms
6
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