DRV8843_15 Datasheet, PDF (7/20 Pages) Texas Instruments – DUAL H-BRIDGE DRIVER IC

DRV8843
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ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
DECAY INPUT
V_IL
Input low threshold voltage
V_IH
Input high threshold voltage
I_IN
Input current
R_PU
Internal pullup resistance (to 3.3 V)
R_PD
Internal pulldown resistance
H-BRIDGE FETS
For slow decay (brake) mode
For fast decay (coast) mode
R_DS(ON)
HS FET on resistance
LS FET on resistance
I_OFF
Off-state leakage current
MOTOR DRIVER
V_M = 24 V, I_O = 1 A, T_J = 25°C
V_M = 24 V, I_O = 1 A, T_J = 85°C
V_M = 24 V, I_O = 1 A, T_J = 25°C
V_M = 24 V, I_O = 1 A, T_J = 85°C
f_PWM
Internal current control PWM
frequency
t_BLANK
Current sense blanking time
t_R
Rise time
t_F
Fall time
PROTECTION CIRCUITS
I_OCP
Overcurrent protection trip level
t_TSD
Thermal shutdown temperature
CURRENT CONTROL
Die temperature
I_REF
VREF input current
VREF = 3.3 V
xVREF = 3.3 V, 100% current setting
V_TRIP
xISENSE trip voltage
xVREF = 3.3 V, 71% current setting
xVREF = 3.3 V, 38% current setting
A_ISENSE Current sense amplifier gain
Reference only
SLVSAS8C – APRIL 2011 – REVISED AUGUST 2013
MIN
TYP
MAX UNIT
0
0.8
V
2
V
±40
μA
130
kΩ
80
kΩ
0.2
0.25
0.32
Ω
0.2
0.25
0.32
–20
20
μA
50
3.75
30
30
3
150
160
–3
635
660
445
469
225
251
5
kHz
μs
200
ns
200
ns
A
180
°C
3
μA
685
492 mV
276
V/V
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