DRV8880_15 Datasheet, PDF (8/48 Pages) Texas Instruments – DRV8880 2-A Stepper Motor Driver With AutoTune™

DRV8880
SLVSD18A – JUNE 2015 – REVISED JULY 2015
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
t_RISE
Output rise time
VM = 24 V, 50 Ω load from xOUTx to
GND
t_FALL
Output fall time
VM = 24 V, 50 Ω load from VM to
xOUTx
t_DEAD
Output dead time ⁽²⁾
V_d
Body diode forward voltage
I_OUT = 0.5 A
PWM CURRENT CONTROL (VREF, AISEN, BISEN)
TRQ at 100%, VREF = 3.3 V
V_TRIP
xISENSE trip voltage, full scale
TRQ at 75%, VREF = 3.3 V
TRQ at 50%, VREF = 3.3 V
TRQ at 25%, VREF = 3.3 V
TRQ at 100% (TRQ0 = 0, TRQ1 = 0)
A_V
Amplifier attenuation
TRQ at 75% (TRQ0 = 1, TRQ1 = 0)
TRQ at 50% (TRQ0 = 0, TRQ1 = 1)
TRQ at 25% (TRQ0 = 1, TRQ1 = 1)
TOFF Logic Low
t_OFF
PWM off-time
TOFF Logic High
TOFF Hi-Z
t_BLANK
PWM blanking time
See Table 8 for details
PROTECTION CIRCUITS
V_UVLO2
VM undervoltage lockout
V_UVLO1
Logic undervoltage
V_UVLO,HYS undervoltage hysteresis
V_CPUV
Charge pump undervoltage
V_CPUV,HYS
I_OCP
V_OCP
t_OCP
t_RETRY
T_TSD ⁽²⁾
T_HYS ⁽²⁾
CP undervoltage hysteresis
Overcurrent protection trip level
Sense pin overcurrent trip level
Overcurrent deglitch time
Overcurrent retry time
Thermal shutdown temperature
Thermal shutdown hysteresis
VM falling; UVLO2 report
VM rising; UVLO2 recovery
VM falling; logic disabled
VM rising; logic enabled
Rising to falling threshold
VCP falling; CPUV report
VCP rising; CPUV recovery
Rising to falling threshold
Current through any FET
Voltage at AISEN or BISEN
Die temperature T_J
Die temperature T_J
(2) Specified by design and characterization data
www.ti.com
MIN
TYP
70
70
200
0.7
500
375
250
125
6.25
6.58
6.2
6.56
6.09
6.51
5.83
6.38
20
30
10
1.8
1.5
1.2
0.9
5.8
6.1
4.5
4.8
100
VM + 1.8
VM + 1.9
50
2.5
3.6
0.9
1.25
2
0.5
150
35
MAX
UNIT
ns
ns
ns
1
V
mV
6.91
6.92
V/V
6.94
6.93
μs
µs
6.4
V
6.5
4.9
V
5
mV
V
mV
A
V
μs
2 ms
°C
°C
8
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