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LV8714TA - Dual Stepper Motor Driver

Description

1 VM1 Motor power supply pin for channel 1 2 ENA1 Enable control pin of channel 1 3 IN1 Input control pin of channel 1 4 VREF1 Reference voltage input pin of channel 1 5 RCS1 Current sense resistor pin of channel 1 6 PS Power save mode selection pin 7 VREG3 Internal 3.3V voltage reg

Features

  • Integrated quad H-bridges with independent controls o Dual bipolar/unipolar stepper motor or quad DC motor drive o Forward and reverse direction control.
  • Low RDS(ON) (upper + lower = 0.9Ω) type MOSFETs.
  • Proprietary internal current sensing o Eliminates up to four external current sense power resistors.
  • Over 256 micro step resolution with external VREF inputs.
  • Single supply operation with a built-in internal regulator.
  • No external component for driving internal MOSF.

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Datasheet preview – LV8714TA

Datasheet Details

Part number LV8714TA
Manufacturer ON Semiconductor
File Size 1.13 MB
Description Dual Stepper Motor Driver
Datasheet download datasheet LV8714TA Datasheet
Additional preview pages of the LV8714TA datasheet.

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Full PDF Text Transcription

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LV8714TA Dual Stepper Motor Driver with Ultra-small Micro Steps The LV8714 is a fully integrated dual bipolar/unipolar stepper motor driver with ultra-small micro step drive capability. Alternatively, it can be used to drive four DC motors independently. The device includes low RDS(ON) (upper + lower = 0.9Ω) type MOSFETs based quad H-bridges with gate drivers and can drive up to 1.5A per H-bridge. Synchronous rectification control is implemented for all H-bridges to lower power dissipation during a MOSFET switching. The device implements constant-current control using PWM at 125 kHz (typ.) switching frequency that enables the least noise motor drive solution.
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