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DRV8889-Q1 Datasheet(PDF) 6 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) 6 Page - Texas Instruments

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6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)1
MIN
MAX
UNIT
VVM
Supply voltage range for normal (DC) operation
4.5
45
V
VI
Logic level input voltage
0
5.5
V
VSDO
SDO buffer supply voltage
2.9
5.5
V
VVREF
VREF voltage
0.05
3.3
V
ƒSTEP
Applied STEP signal (STEP)
0
100 (2)
kHz
IFS
Motor full-scale current (xOUTx)
0
1.5 (3)
A
Irms
Motor RMS current (xOUTx)
0
1.1 (3)
A
TA
Operating ambient temperature
–40
125
°C
TJ
Operating junction temperature
–40
150
°C
1. Device is functional, however, deviations of the specified electrical characteristics are possible
2. STEP input can operate up to 500 kHz, but system bandwidth is limited by the motor load
3. Power dissipation and thermal limits must be observed
6.4 Thermal Information
THERMAL METRIC 1
PWP (HTSSOP)
RGE (VQFN)
UNIT
24 PINS
24 PINS
RθJA
Junction-to-ambient thermal resistance
30.9
40.7
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
25.2
31.1
°C/W
RθJB
Junction-to-board thermal resistance
11.3
17.9
°C/W
ψJT
Junction-to-top characterization parameter
0.4
0.6
°C/W
ψJB
Junction-to-board characterization parameter
11.3
17.8
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
3.1
4.3
°C/W
1. For more information about traditional and new thermalmetrics, see the Semiconductor and IC Package
Thermal Metrics application report.
DRV8889-Q1
SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020
www.ti.com
6
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Copyright © 2020 Texas Instruments Incorporated
Product Folder Links: DRV8889-Q1


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