DRV8426PWPR datasheet(20/49 Pages) TI1

Part #	DRV8426PWPR

Description	DRV8426 Stepper Driver With Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and smart tune Technology

PDF	49 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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20 / 49 page

ITRIP

tBLANK

tDRIVE

tOFF

tBLANK

tDRIVE

tFAST

tBLANK

tOFF

tFAST

tDRIVE

tBLANK

tDRIVE

tOFF

tBLANK

tDRIVE

DRV8426

SLOSE55 – MAY 2020

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Product Folder Links: DRV8426

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7.3.6.2 Slow Decay for Increasing Current, Mixed Decay for Decreasing Current

Figure 11. Slow-Mixed Decay Mode

Mixed decay begins as fast decay for a time, followed by slow decay for the remainder of the tOFF time. In this

mode, mixed decay only occurs during decreasing current. Slow decay is used for increasing current.

This mode exhibits the same current ripple as slow decay for increasing current, because for increasing current,

only slow decay is used. For decreasing current, the ripple is larger than slow decay, but smaller than fast decay.

On decreasing current steps, mixed decay settles to the new ITRIP level faster than slow decay.

DRV8426PWPR Datasheet(PDF) 20 Page - Texas Instruments