參數(shù)資料
型號： DRV8825PWP
廠商： TEXAS INSTRUMENTS INC
元件分類： 運動控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, PDSO28
封裝： GREEN, PLASTIC, HTSSOP-28
文件頁數(shù)： 19/22頁
文件大?。?/td> 628K
代理商： DRV8825PWP
SLVSA73C
– APRIL 2010 – REVISED MAY 2011
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER SUPPLIES
IVM
VM operating supply current
VM = 24 V, fPWM < 50 kHz
5
8
mA
IVMQ
VM sleep mode supply current
VM = 24 V
10
20
μA
VUVLO
VM undervoltage lockout voltage
VM rising
7.8
8.2
V
V3P3OUT REGULATOR
V3P3
V3P3OUT voltage
IOUT = 0 to 1 mA
3.2
3.3
3.4
V
LOGIC-LEVEL INPUTS
VIL
Input low voltage
0.6
0.7
V
VIH
Input high voltage
2.2
5.25
V
VHYS
Input hysteresis
0.3
0.45
0.6
V
IIL
Input low current
VIN = 0
–20
20
μA
IIH
Input high current
VIN = 3.3 V
100
μA
RPD
Internal pulldown resistance
100
k
Ω
nHOME, nFAULT OUTPUTS (OPEN-DRAIN OUTPUTS)
VOL
Output low voltage
IO = 5 mA
0.5
V
IOH
Output high leakage current
VO = 3.3 V
1
μA
DECAY INPUT
VIL
Input low threshold voltage
For slow decay mode
0.8
V
VIH
Input high threshold voltage
For fast decay mode
2
V
IIN
Input current
±40
A
RPU
Internal pullup resistance (up 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
fPWM
Internal current control PWM frequency
30
kHz
tBLANK
Current sense blanking time
4
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
xVREF input current
xVREF = 3.3 V
–3
3
μA
VTRIP
xISENSE trip voltage
xVREF = 3.3 V, 100% current setting
635
660
685
mV
xVREF = 3.3 V, 5% current setting
–25
25
xVREF = 3.3 V, 10% - 34% current
–15
15
setting
Current trip accuracy
ΔITRIP
%
xVREF = 3.3 V, 38% - 67% current
(relative to programmed value)
–10
10
setting
xVREF = 3.3 V, 71% - 100% current
–5
5
setting
AISENSE Current sense amplifier gain
Reference only
5
V/V
6
Copyright
2010–2011, Texas Instruments Incorporated
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