Datasheet

STEP
DIR,
M0, M1
2
3
1
4
5
nSLEEP
6
DRV8834
www.ti.com SLVSB19C –FEBRUARY 2012–REVISED JUNE 2013
ELECTRICAL CHARACTERISTICS (continued)
T
A
= 25°C, over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
TSD
Thermal shutdown temperature Die temperature 150 160 180 °C
CURRENT CONTROL
I
REF
VREF input current VREF = 3.3 V -1 1 µA
V
TRIP
xISEN trip voltage For 100% current step xVREF/5 V
A
ISENSE
Current sense amplifier gain Reference only 5 V/V
TIMING REQUIREMENTS
T
A
= 25°C, over operating free-air temperature range (unless otherwise noted)
NO. PARAMETER CONDITIONS MIN MAX UNIT
1 f
STEP
Step frequency 250 kHz
2 t
WH(STEP)
Pulse duration, STEP high 1.9 µs
3 t
WL(STEP)
Pulse duration, STEP low 1.9 µs
4 t
SU(STEP)
Setup time, command to STEP rising 200 ns
5 t
H(STEP)
Hold time, command to STEP rising 1 µs
6 t
WAKE
Wakeup time, nSLEEP inactive to STEP 1 ms
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