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DRV8811_11 Datasheet, PDF (6/22 Pages) Texas Instruments – STEPPER MOTOR CONTROLLER IC
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DRV8811
SLVS865G – SEPTEMBER 2008 – REVISED MAY 2010
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Power Supplies
IVM
VM operating supply current
IVCC
VCC operating supply current
IVMQ
VM sleep mode supply current
IVCCQ VCC sleep mode supply current
VUVLO
VM undervoltage lockout voltage
VCC undervoltage lockout voltage
VREF Input/Current Control Accuracy
VM = 35 V, fPWM < 50 KHz
fPWM < 50 KHz
VM = 35 V
VM rising
VCC rising
IREF
VREF input current
ΔICHOP Chopping current accuracy
VREF = 3.3 V
VREF = 2.0 V, 70% to 100% current
VREF = 2.0 V, 20% to 56% current
Logic-Level Inputs
VIL
Input low voltage
VIH
Input high voltage
IIL
Input low current
IIH
Input high current
HOMEn Output
VIN = 0.3 × VCC
VIN = 0.3 × VCC
VOL
Output low voltage
VOH
Output high voltage
Decay Input
IO = 200 mA
IO = –200 mA
VIL
Input low threshold voltage
For fast decay mode
VIH
Input high threshold voltage
H-Bridge FETS
Rds(on) HS FET on resistance
Rds(on) LS FET on resistance
IOFF
Motor Driver
tOFF
Off time
tBLANK
tDT
Current sense blanking time
Dead time(1)
Protection Circuits
IOCP
Overcurrent protection trip level
tTSD
Thermal shutdown temperature(1)
For slow decay mode
VM = 24 V, IO = 2.5 A, TJ = 25°C
VM = 24 V, IO = 2.5 A, TJ = 85°C
VM = 24 V, IO = 2.5 A, TJ = 25°C
VM = 24 V, IO = 2.5 A, TJ = 85°C
Rx = 56 kΩ, Cx = 680 pF
Rx = 56 kΩ, Cx = 680 pF
SRn = 0
Die temperature
(1) Not tested in production - guaranteed by design.
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MIN
TYP
MAX UNIT
4.5
8 mA
0.4
4 mA
12
20 mA
5
20 mA
6.7
8
V
2.71
2.95
–3
3 mA
–5
5%
–10
10 %
0.7 × VCC
–20
–20
0.3 × VCC V
V
20 mA
20 mA
0.7 × VCC
0.3 × VCC V
V
0.21 ×
VCC
V
0.6 × VCC
V
0.50
Ω
0.60
0.75
0.50
Ω
0.60
0.75
–20
20 mA
30
38
46 ms
700
950
1200 ns
100
475
800 ns
2.5
4.5
6.5 A
150
160
180 °C
6
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