Datasheet
DRV8811
SLVS865G –SEPTEMBER 2008–REVISED MAY 2010
www.ti.com
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Power Supplies
I
VM
V
M
operating supply current V
M
= 35 V, f
PWM
< 50 KHz 4.5 8 mA
I
VCC
V
CC
operating supply current f
PWM
< 50 KHz 0.4 4 mA
I
VMQ
V
M
sleep mode supply current V
M
= 35 V 12 20 mA
I
VCCQ
V
CC
sleep mode supply current 5 20 mA
V
M
undervoltage lockout voltage V
M
rising 6.7 8
V
UVLO
V
V
CC
undervoltage lockout voltage V
CC
rising 2.71 2.95
VREF Input/Current Control Accuracy
I
REF
VREF input current VREF = 3.3 V –3 3 mA
VREF = 2.0 V, 70% to 100% current –5 5 %
ΔI
CHOP
Chopping current accuracy
VREF = 2.0 V, 20% to 56% current –10 10 %
Logic-Level Inputs
V
IL
Input low voltage 0.3 × V
CC
V
V
IH
Input high voltage 0.7 × V
CC
V
I
IL
Input low current VIN = 0.3 × V
CC
–20 20 mA
I
IH
Input high current VIN = 0.3 × V
CC
–20 20 mA
HOMEn Output
V
OL
Output low voltage I
O
= 200 mA 0.3 × VCC V
V
OH
Output high voltage I
O
= –200 mA 0.7 × VCC V
Decay Input
0.21 ×
V
IL
Input low threshold voltage For fast decay mode V
VCC
V
IH
Input high threshold voltage For slow decay mode 0.6 × VCC V
H-Bridge FETS
V
M
= 24 V, I
O
= 2.5 A, T
J
= 25°C 0.50
R
ds(on)
HS FET on resistance Ω
V
M
= 24 V, I
O
= 2.5 A, T
J
= 85°C 0.60 0.75
V
M
= 24 V, I
O
= 2.5 A, T
J
= 25°C 0.50
R
ds(on)
LS FET on resistance Ω
V
M
= 24 V, I
O
= 2.5 A, T
J
= 85°C 0.60 0.75
I
OFF
–20 20 mA
Motor Driver
t
OFF
Off time Rx = 56 kΩ, Cx = 680 pF 30 38 46 ms
t
BLANK
Current sense blanking time Rx = 56 kΩ, Cx = 680 pF 700 950 1200 ns
t
DT
Dead time
(1)
SRn = 0 100 475 800 ns
Protection Circuits
I
OCP
Overcurrent protection trip level 2.5 4.5 6.5 A
t
TSD
Thermal shutdown temperature
(1)
Die temperature 150 160 180 °C
(1) Not tested in production - guaranteed by design.
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