Texas Instruments DRV8814EVM - DRV8814 Evaluation Module DRV8814EVM DRV8814EVM Datenbogen
Produktcode
DRV8814EVM
SLVSAB9D – MAY 2010 – REVISED AUGUST 2013
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER SUPPLIES
I
VM
VM operating supply current
V
M
= 24 V, f
PWM
< 50 kHz
5
8
mA
I
VMQ
VM sleep mode supply current
V
M
= 24 V
10
20
μA
V
UVLO
VM undervoltage lockout voltage
V
M
rising
7.8
8.2
V
V3P3OUT REGULATOR
V
3P3
V3P3OUT voltage
IOUT = 0 to 1 mA
3.2
3.3
3.4
V
LOGIC-LEVEL INPUTS
V
IL
Input low voltage
0.6
0.7
V
V
IH
Input high voltage
2
5.25
V
V
HYS
Input hysteresis
0.3
0.45
0.6
V
I
IL
Input low current
VIN = 0
–20
20
μA
I
IH
Input high current
VIN = 3.3 V
33
100
μA
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
V
OL
Output low voltage
I
O
= 5 mA
0.5
V
I
OH
Output high leakage current
V
O
= 3.3 V
1
μA
DECAY INPUT
V
IL
Input low threshold voltage
For slow decay (brake) mode
0
0.8
V
V
IH
Input high threshold voltage
For fast decay (coast) mode
2
V
I
IN
Input current
VIN = 0 V to 3.3 V
±40
μA
H-BRIDGE FETS
V
M
= 24 V, I
O
= 1 A, T
J
= 25°C
0.2
R
DS(ON)
HS FET on resistance
Ω
V
M
= 24 V, I
O
= 1 A, T
J
= 85°C
0.25
0.32
V
M
= 24 V, I
O
= 1 A, T
J
= 25°C
0.2
R
DS(ON)
LS FET on resistance
Ω
V
M
= 24 V, I
O
= 1 A, T
J
= 85°C
0.25
0.32
I
OFF
Off-state leakage current
–20
20
μA
MOTOR DRIVER
Internal current control PWM
f
PWM
50
kHz
frequency
t
BLANK
Current sense blanking time
3.75
μs
t
R
Rise time
50
300
ns
t
F
Fall time
50
300
ns
PROTECTION CIRCUITS
I
OCP
Overcurrent protection trip level
3
A
t
TSD
Thermal shutdown temperature
Die temperature
150
160
180
°C
CURRENT CONTROL
I
REF
VREF input current
VREF = 3.3 V
–3
3
μA
xVREF = 3.3 V, 100% current setting
635
660
685
V
TRIP
xISENSE trip voltage
xVREF = 3.3 V, 71% current setting
445
469
492
mV
xVREF = 3.3 V, 38% current setting
225
251
276
A
ISENSE
Current sense amplifier gain
Reference only
5
V/V
6
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