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DRV8889-Q1 Datasheet(PDF) 8 Page - Texas Instruments

Part No. DRV8889-Q1
Description  DRV8889-Q1, DRV8889A-Q1 Automotive Stepper Driver with Integrated Current Sense, 1/256 Micro-Stepping, and Stall Detection
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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DRV8889-Q1 Datasheet(HTML) 8 Page - Texas Instruments

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Over recommended operating conditions unless otherwise noted. Typical limits apply for TJ = 25°C and VVM =
13.5 V
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
MOTOR DRIVER OUTPUTS (AOUT1, AOUT2, BOUT1, BOUT2)
RDS(ONH)
High-side FET on resistance
TJ = 25°C, IO = -1 A
450
550
mΩ
TJ = 125°C, IO = -1 A
700
850
mΩ
TJ = 150°C, IO = -1 A
780
950
mΩ
RDS(ONL)
Low-side FET on resistance
TJ = 25°C, IO = 1 A
450
550
mΩ
TJ = 125°C, IO = 1 A
700
850
mΩ
TJ = 150°C, IO = 1 A
780
950
mΩ
tSR
Output slew rate
SR = 00b, VM = 13.5 V, IO = 0.5 A
10
V/µs
SR = 01b, VM = 13.5 V, IO = 0.5 A
35
SR = 10b, VM = 13.5 V, IO = 0.5 A
50
SR = 11b, VM = 13.5 V, IO = 0.5 A
105
PWM CURRENT CONTROL (VREF)
KV
Transimpedance gain
2.2
V/A
tOFF
PWM off-time
TOFF = 00b
7
μs
TOFF = 01b
16
TOFF = 10b
24
TOFF = 11b
32
ΔITRIP
Current trip accuracy
IO = 1.5 A, 10% to 20% current setting
–13
10
%
IO = 1.5 A, 20% to 67% current setting
–8
8
IO = 1.5 A, 67% to 100% current
setting
–7.5
7.5
IO,CH
AOUT and BOUT current
matching
IO = 1.5 A
–2.5
2.5
%
PROTECTION CIRCUITS
VUVLO
VM UVLO lockout
VM falling, UVLO falling
4.15
4.25
4.35
V
VM rising, UVLO rising
4.25
4.35
4.45
VUVLO,HYS
Undervoltage hysteresis
Rising to falling threshold
100
mV
VRST
VM UVLO reset
VM falling, device reset, no SPI
communications
3.9
V
VCPUV
Charge pump undervoltage
VCP falling; CPUV report
VM + 2
V
IOCP
Overcurrent protection
Current through any FET
2.4
A
tOCP
Overcurrent deglitch time
VVM < 37 V
3
μs
VVM ≥ 37 V
0.5
tRETRY
Overcurrent retry time
OCP_MODE = 1b
4
ms
tOL
Open load detection time
DRV8889-Q1, EN_OL = 1b
200
ms
DRV8889A-Q1, EN_OL = 1b,
OL_TIME = 00b
200
DRV8889A-Q1, EN_OL = 1b,
OL_TIME = 01b
125
DRV8889A-Q1, EN_OL = 1b,
OL_TIME = 10b
75
DRV8889A-Q1, EN_OL = 1b,
OL_TIME = 11b
3
IOL
Open load current threshold
30
mA
TOTW
Overtemperature warning
Die temperature TJ
135
150
165
°C
TUTW
Undertemperature warning
Die temperature TJ
-25
-10
5
°C
TOTSD
Thermal shutdown
Die temperature TJ
150
165
180
°C
DRV8889-Q1
SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020
www.ti.com
8
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Copyright © 2020 Texas Instruments Incorporated
Product Folder Links: DRV8889-Q1


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