DRV8812_14 Datasheet, PDF (6/23 Pages) Texas Instruments – DUAL-BRIDGE MOTOR CONTROLLER IC

DRV8812
SLVS997F – OCTOBER 2009 – REVISED AUGUST 2013
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
IOUT = 0 to 1 mA, V_M = 24 V, T_J = 25°C
IOUT = 0 to 1 mA
LOGIC-LEVEL INPUTS
V_IL
Input low voltage
V_IH
Input high voltage
V_HYS
Input hysteresis
I_IL
Input low current
I_IH
Input high current
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
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_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 PWM frequency
t_BLANK
Current sense blanking time
t_R
Rise time
t_F
Fall time
t_DEAD
Dead time
t_DEG
Input deglitch time
PROTECTION CIRCUITS
V_M = 24 V
V_M = 24 V
I_OCP
Overcurrent protection trip level
t_TSD
Thermal shutdown temperature
CURRENT CONTROL
Die temperature
I_REF
xVREF input current
xVREF = 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
MIN
3.18
3.10
2
–20
0
2
–20
100
80
1.3
1.8
150
–3
635
445
225
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TYP
MAX UNIT
5
8 mA
10
20
μA
7.8
8.2
V
3.30
3.42
V
3.30
3.50
0.6
0.7
V
5.25
V
0.45
V
20
μA
100
μA
0.5
V
1
μA
0.8
V
V
±40
µA
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
2.9
µs
5
A
160
180
°C
3
μA
660
685
469
492 mV
251
276
5
V/V
6
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