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DRV8889-Q1 Datasheet(PDF) 33 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) 33 Page - Texas Instruments

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Figure 7-17. Logic-Level with Internal Pull-up Input Pin Diagram
7.3.10.1 nFAULT Pin
The nFAULT pin has an open-drain output and should be pulled up to a 5-V or 3.3-V supply. When a fault is
detected, the nFAULT pin is logic low. nFAULT pin will be high after power-up. For a 5-V pullup, the nFAULT pin
can be tied to the DVDD pin with a resistor. For a 3.3-V pullup, an external 3.3-V supply must be used.
Output
nFAULT
Figure 7-18. nFAULT Pin
7.3.11 Protection Circuits
The device is fully protected against supply undervoltage, charge pump undervoltage, output overcurrent, device
overtemperature, and open load events.
It provides additional diagnostics in the form of stall detection.
www.ti.com
DRV8889-Q1
SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020
Copyright © 2020 Texas Instruments Incorporated
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