DRV8886AT Datasheet, PDF (7/40 Pages) Texas Instruments – 2-A Stepper Motor Driver With Integrated Current Sense and AutoTune Technology

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Electrical Characteristics (continued)
at T_A = -40 to 125°C, V_VM = 8 to 37 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MOTOR DRIVER OUTPUTS (AOUT1, AOUT2, BOUT1, BOUT2)
R_DS(ON)
High-side FET on resistance
R_DS(ON)
t_RISE ⁽¹⁾
t_FALL ⁽¹⁾
t_DEAD ⁽¹⁾
V_d ⁽¹⁾
Low-side FET on resistance
Output rise time
Output fall time
Output dead time
Body diode forward voltage
PWM CURRENT CONTROL (RREF)
VM = 24 V, I = 1.4 A, T_A = 25°C
VM = 24 V, I = 1.4 A, T_A = 25°C
I_OUT = 0.5 A
A_RREF
V_RREF
t_OFF
C_RREF
RREF transimpedance gain
RREF voltage
PWM off-time
Equivalent capacitance on
RREF
RREF = 18 to 132 kΩ
t_BLANK
PWM blanking time
I_RREF = 2.0 A, 63% to 100% current
setting
I_RREF = 2.0 A, 0% to 63% current
setting
I_RREF = 1.5 A, 10% to 20% current
setting, 1% reference resistor
ΔI_TRIP
Current trip accuracy
I_RREF = 1.5 A, 20% to 63% current
setting, 1% reference resistor
I_RREF = 1.5 A, 71% to 100% current
setting, 1% reference resistor
PROTECTION CIRCUITS
V_UVLO
VM UVLO
VM falling, UVLO report
VM rising, UVLO recovery
V_UVLO,HYS
V_CPUV
I_OCP
t_OCP ⁽¹⁾
t_RETRY
T_TSD ⁽¹⁾
T_HYS ⁽¹⁾
Undervoltage hysteresis
Charge pump undervoltage
Overcurrent protection trip
level
Overcurrent deglitch time
Overcurrent retry time
Thermal shutdown
temperature
Thermal shutdown hysteresis
Rising to falling threshold
VCP falling; CPUV report
Current through any FET
Die temperature T_J
Die temperature T_J
DRV8886AT
SLVSDO1 – JANUARY 2017
MIN
TYP
290
260
100
100
200
0.7
28.1
30
1.18
1.232
20
1.5
1
–15%
–10%
–6.25%
7
7.2
200
VM + 2
3
1.3
1.9
1
150
20
MAX UNIT
346
mΩ
320
mΩ
ns
ns
ns
1
V
31.9 kAΩ
1.28
V
μs
10
pF
µs
15%
10%
6.25%
7.8
V
8
mV
V
A
2.8
μs
1.6
ms
°C
°C
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