HR4988 - Microstepping motor driver

HEROIC

Datasheet Details

Part number	HR4988
Manufacturer	HEROIC
File Size	3.56 MB
Description	Microstepping motor driver
Datasheet	HR4988 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HR4988 ，、、1/4、1/8、1/16 。MSx。 32V±2A。 HR4988。STEP ，，，。，HR4988 PWM、。，，。，，。 PWM 。：、。。 HR4988QFN28，，，。 HR4988ESQER QFN5*5-28 ，5000/ HR4988 ●RDS(ON)，640mΩ(HS+LS) ● ● ● ● ● ●3.3V5V ● ● ● ●16 QFN28 with exposed thermal pad www.heroic.com.cn Page 1 of 22 HR4988-S402-V1.2 2017.4 2017.10 2019.01 2020.03 HR4988 V0.1 V1.0 V1.1 V1.2 www.heroic.com.cn Page 2 of 22 HR4988-S402-V1.2 HR4988 1、 ROSC：， ROSC ，，，。 tOFF  ROSC/825，tOFF us。，，tOFF 30us。 2、 CP ：0.1uF/50V 3、 VCP ：0.1uF/50V 4、 VREG ：0.22uF/16V 5、 VREF ， 0.8V – 3V。 6、 RSENSE ， REF ITrip MAX＝VREF／(8×Rs) ， Rsense Vref ， Vsense=Imax*Rsense 0.35V—0.45V ， Vref = 8*Vsense 。 www.heroic.com.cn Page 3 of 22 HR4988-S402-V1.