DRV8461SPWPR datasheet(44/117 Pages) TI

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DRV8461SPWPR Datasheet(PDF) 44 Page - Texas Instruments

Part #	DRV8461SPWPR

Description	DRV8461: 65 V, 3 A Stepper Motor Driver for High Efficiency and Noiseless Operation

PDF	117 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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44 / 117 page

– ATQ_LRN_DONE bit becomes 1b

• ATQ_LRN_CONST1 and ATQ_LRN_CONST2 are populated in their respective registers

• Motor current goes to ATQ_TRQ_MAX

Once the ATQ_LRN_CONST1 and ATQ_LRN_CONST2 are known from the prototyping tests, they can be used

for mass production without invoking the learning routine again. The following sequence of commands should be

applied in mass production:

• VREF set to the same value as during learning in prototype tests

• Program ATQ_LRN_MIN_CURRENT

• Program ATQ_LRN_STEP

• Program ATQ_LRN_CONST1

• Program ATQ_LRN_CONST2

• Write 1b to ATQ_EN

Figure 7-24 shows the consolidated flowchart of the auto-torque learning routine.

DRV8461

SLOSE98 – DECEMBER 2022

www.ti.com

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