DRV8823_16 Datasheet, PDF (6/32 Pages) Texas Instruments – 4-Bridge Serial Interface Motor Driver

DRV8823
SLVS913E – JANUARY 2009 – REVISED JANUARY 2016
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
POWER SUPPLIES
I_VM
V_M operating supply current
V_M = 24 V, no loads
V_UVLO V_M undervoltage lockout voltage
V_M rising
V_CP
Charge pump voltage
Relative to V_M
V_V3P3 V_V3P3 output voltage
LOGIC-LEVEL INPUTS (INTERNAL PULLDOWNS)
V_IL
V_IH
V_HYS
I_IN
Input low voltage
Input high voltage
Input hysteresis
Input current
(internal pulldown current)
V_IN = 3.3 V
OVERTEMPERATURE PROTECTION
T_TSD Thermal shutdown temperature
MOTOR DRIVERS
Die temperature
R_ds(on)
Motor 1 FET on resistance
(each individual FET)
R_ds(on)
Motor 2 FET on resistance
(each individual FET)
I_OFF
f_PWM
t_BLANK
Off-state leakage current
Motor PWM frequency⁽¹⁾
ITRIP blanking time⁽²⁾
t_F
Output fall time
t_R
Output rise time
I_OCP
Overcurrent protect level
t_OCP
Overcurrent protect trip time
t_MD
Mixed decay percentage
CURRENT CONTROL
V_M = 24 V, I_O = 0.8 A, T_J = 25°C
V_M = 24 V, I_O = 0.8 A, T_J = 85°C
V_M = 24 V, I_O = 0.8 A, T_J = 25°C
V_M = 24 V, I_O = 0.8 A, T_J = 85°C
Measured from beginning of PWM cycle
I_REF
xVREF input current
ΔI_CHOP Chopping current accuracy
xVREF = 3.3 V
xVREF = 2.5 V, derived from V3P3; 71%
to 100% current
xVREF = 2.5 V, derived from V3P3; 20%
to 56% current
(1) Factory option 100 kHz.
(2) Factory options for 2.5, 5, or 6.25 μs.
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MIN
3.2
2
0.3
150
45
50
50
1.5
2.5
–3
–5%
–10%
TYP
5
6.5
12
3.3
0.45
0.25
0.31
0.3
0.38
50
3.75
3
75%
MAX UNIT
8 mA
8V
V
3.4 V
0.7 V
V
0.6 V
100 μA
°C
Ω
0.37
Ω
0.45
±12 μA
55 kHz
μs
300 ns
300 ns
4.5 A
μs
3 μA
5%
10%
6
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