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DRV8885 Datasheet(PDF) 7 Page - Texas Instruments

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Part # DRV8885
Description  1.5A Stepper Motor Driver
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

DRV8885 Datasheet(HTML) 7 Page - Texas Instruments

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DRV8885
www.ti.com
SLVSD39 – OCTOBER 2015
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
MOTOR DRIVER OUTPUTS (AOUT1, AOUT2, BOUT1, BOUT2)
RDS(ON)
High-side FET on resistance
VM = 24 V, I = 1 A, TA = 25°C
440
490
m
RDS(ON)
Low-side FET on resistance
VM = 24 V, I = 1 A, TA = 25°C
420
460
m
tRISE
(2)
Output rise time
100
ns
tFALL
(2)
Output fall time
100
ns
tDEAD
(2)
Output dead time
200
ns
Vd
(2)
Body diode forward voltage
IOUT = 0.5 A
0.7
1.0
V
PWM CURRENT CONTROL (RREF)
ARREF
RREF transimpedance gain
28.1
30
31.9
kA
VRREF
RREF voltage
RREF = 18 to 132 k
1.18
1.232
1.28
V
tOFF
PWM off-time
20
μs
Equivalent capacitance on
CRREF
10
pF
RREF
IRREF = 1.5 A, 63% to 100% current
1.5
setting
tBLANK
PWM blanking time
µs
IRREF = 1.5 A, 0% to 63% current
1.0
setting
IRREF = 1.0 A, 10% to 20% current
–25%
25%
setting, 1% reference resistor
IRREF = 1.0 A, 20% to 63% current
ΔITRIP
Current trip accuracy
–12.5%
12.5%
setting, 1% reference resistor
IRREF = 1.0 A, 71% to 100% current
–6.25%
6.25%
setting, 1% reference resistor
PROTECTION CIRCUITS
VM falling; UVLO report
7.8
VUVLO
VM UVLO
V
VM rising; UVLO recovery
8.0
VUVLO,HYS
Undervoltage hysteresis
Rising to falling threshold
100
mV
VCPUV
Charge pump undervoltage
VCP falling; CPUV report
VM + 2.0
V
Overcurrent protection trip
IOCP
Current through any FET
2.3
A
level
tOCP
Overcurrent deglitch time
1.3
1.9
2.8
μs
tRETRY
Overcurrent retry time
1
1.6
ms
Thermal shutdown
TTSD
(2)
Die temperature TJ
150
°C
temperature
THYS
(2)
Thermal shutdown hysteresis
Die temperature TJ
20
°C
(2)
Not tested in production; limits are based on characterization data
Copyright © 2015, Texas Instruments Incorporated
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