DRV8811_15 Datasheet, PDF (7/32 Pages) Texas Instruments – DRV8811 Stepper Motor Controller IC

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DRV8811
SLVS865I – SEPTEMBER 2008 – REVISED JANUARY 2015
7.7 Timing Requirements
over operating free-air temperature range (unless otherwise noted) (see Figure 1)
MIN
1 f_STEP
Step frequency
2 t_WH(STEP)
Pulse duration, STEP high
1
3 t_WL(STEP)
Pulse duration, STEP low
1
4 t_SU(STEP)
Setup time, command before STEP rising
200
5 t_H(STEP)
Hold time, command after STEP rising
200
6 t_WAKE
Wakeup time, SLEEPn inactive high to STEP input accepted
7 t_SLEEP
Sleep time, SLEEPn active low to outputs disabled
8 t_ENABLE
Enable time, ENABLEn inactive high to outputs enabled
9 t_DISABLE
Disable time, ENABLEn active low to outputs disabled
10 t_RESETR
Reset release time, RESETn inactive high to outputs enabled
11 t_RESET
Reset time, RESETn active low to outputs disabled
TYP
MAX UNIT
500 kHz
μs
μs
ns
ns
1 ms
5 μs
20 μs
20 μs
5 μs
5 μs
1
2
3
STEP
DIR, USMx
SLEEPn, ENABLEn, RESETn
45
6
8
7
10
9
11
OUTPUT
Figure 1. Timing Diagram
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