DRV8824_16 Datasheet, PDF (6/35 Pages) Texas Instruments – Stepper Motor Controller IC

DRV8824
SLVSA06J – OCTOBER 2009 – REVISED JULY 2014
7.5 Electrical Characteristics
over operating free-air temperature range of –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
POWER SUPPLIES
I_VMx
VMx operating supply current
I_VMxQ
VMx sleep mode supply current
V3P3OUT REGULATOR
V_(VMx) = 24 V, ƒ_PWM < 50 kHz
V_(VMx) = 24 V
V_3P3
V3P3OUT voltage
IOUT = 0 to 1 mA, V_(VMx) = 24 V, T_J = 25°C
IOUT = 0 to 1 mA
LOGIC-LEVEL INPUTS
V_IL
V_IH
V_HYS
I_IL
I_IH
R_PD
Input low voltage
Input high voltage
Input hysteresis
Input low current
Input high current
Internal pulldown resistance
VIN = 0
VIN = 3.3 V
nENBL, nRESET, DIR, STEP, MODEx
nSLEEP
nHOME, nFAULT OUTPUTS (OPEN-DRAIN OUTPUTS)
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 mode
For fast decay mode
R_DS(ON)
HS FET on resistance
R_DS(ON)
LS FET on resistance
I_OFF
Off-state leakage current
MOTOR DRIVER
V_(VMx) = 24 V, I_O = 1 A, T_J = 25°C
V_(VMx) = 24 V, I_O = 1 A, T_J = 85°C
V_(VMx) = 24 V, I_O = 1 A, T_J = 25°C
V_(VMx) = 24 V, I_O = 1 A, T_J = 85°C
ƒ_PWM
Internal PWM frequency
t_BLANK
Current sense blanking time
t_R
Rise time
t_F
Fall time
t_DEAD
Dead time
PROTECTION CIRCUITS
V_(VMx) = 24 V
V_(VMx) = 24 V
V_UVLO
VMx undervoltage lockout voltage V_(VMx) rising
I_OCP
Overcurrent protection trip level
t_DEG
Overcurrent deglitch time
T_TSD
Thermal shutdown temperature Die temperature
CURRENT CONTROL
I_REF
V_TRIP
xVREF input current
xISENSE trip voltage
V_(xVREF) = 3.3 V
V_(xVREF) = 3.3 V, 100% current setting
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MIN
3.18
3.10
0
2
–20
2
–100
–20
100
80
1.8
150
–3
635
TYP MAX UNIT
5
8 mA
10
20 μA
3.30 3.42
V
3.30 3.50
0.7 V
5.25 V
0.45
V
20 μA
100 μA
100
kΩ
1
MΩ
0.5 V
1 μA
0.8 V
V
100 µA
130
kΩ
80
kΩ
0.63
Ω
0.76 0.90
0.65
Ω
0.78 0.90
20 μA
50
kHz
3.75
μs
360 ns
250 ns
400
ns
7.8
8.2 V
5A
3
µs
160
180 °C
3 μA
660
685 mV
6
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