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DRV8843PWP Datasheet(数据表) 6 Page - Texas Instruments

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部件型号  DRV8843PWP
说明  DUAL H-BRIDGE DRIVER IC
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
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DRV8843PWP Datasheet(HTML) 6 Page - Texas Instruments

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DRV8843
SLVSAS8A
– APRIL 2011 – REVISED MAY 2011
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DECAY INPUT
VIL
Input low threshold voltage
For slow decay (brake) mode
0
0.8
V
VIH
Input high threshold voltage
For fast decay (coast) mode
2
V
IIN
Input current
±40
μA
RPU
Internal pullup resistance (to 3.3 V)
130
k
Ω
RPD
Internal pulldown resistance
80
k
Ω
H-BRIDGE FETS
VM = 24 V, IO = 1 A, TJ = 25°C
0.2
HS FET on resistance
VM = 24 V, IO = 1 A, TJ = 85°C
0.25
0.32
RDS(ON)
VM = 24 V, IO = 1 A, TJ = 25°C
0.2
LS FET on resistance
VM = 24 V, IO = 1 A, TJ = 85°C
0.25
0.32
IOFF
Off-state leakage current
–20
20
μA
MOTOR DRIVER
Internal current control PWM
fPWM
50
kHz
frequency
tBLANK
Current sense blanking time
3.75
μs
tR
Rise time
30
200
ns
tF
Fall time
30
200
ns
PROTECTION CIRCUITS
IOCP
Overcurrent protection trip level
3
A
tTSD
Thermal shutdown temperature
Die temperature
150
160
180
°C
CURRENT CONTROL
IREF
VREF input current
VREF = 3.3 V
–3
3
μA
xVREF = 3.3 V, 100% current setting
635
660
685
VTRIP
xISENSE trip voltage
xVREF = 3.3 V, 71% current setting
445
469
492
mV
xVREF = 3.3 V, 38% current setting
225
251
276
AISENSE
Current sense amplifier gain
Reference only
5
V/V
6
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Copyright
© 2011, Texas Instruments Incorporated
Product Folder Link(s): DRV8843




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