DRV8841_15 Datasheet, PDF (6/28 Pages) Texas Instruments – Dual H-Bridge Driver IC

DRV8841
SLVSAC0F – MAY 2010 – REVISED DECEMBER 2015
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
POWER SUPPLIES
I_VM
VM operating supply current
I_VMQ
VM sleep mode supply current
V_UVLO
VM undervoltage lockout voltage
V3P3OUT REGULATOR
V_M = 24 V, f_PWM < 50 kHz
V_M = 24 V
V_M rising
V_3P3
V3P3OUT voltage
LOGIC-LEVEL INPUTS
IOUT = 0 to 1 mA
V_IL
Input low voltage
V_IH
Input high voltage
V_HYS
Input hysteresis
I_IL
Input low current
I_IH
Input high current
R_PD
Internal pulldown resistance
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
VIN = 0
VIN = 3.3 V
V_OL
Output low voltage
I_OH
Output high leakage current
DECAY INPUT
I_O = 5 mA
V_O = 3.3 V
V_IL
Input low threshold voltage
V_IH
Input high threshold voltage
I_IN
Input current
R_PU
Internal pullup resistance
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
R_DS(ON) 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
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MIN
TYP
MAX UNIT
5
8 mA
10
20
μA
7.8
8.2
V
3.2
3.3
3.4
V
0.6
0.7
V
2.2
5.25
V
0.3
0.45
0.6
V
–20
20
μA
100
μA
100
kΩ
0.5
V
1
μA
0
0.8
V
2
V
±40
μA
130
kΩ
80
kΩ
0.2
Ω
0.25
0.32
0.2
Ω
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
6
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