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LV8726TA - Stepper Motor Pre-Driver

Description

1 NC No connection 2 NC No connection 3 OUT2 OUT2 voltage detection pin 4 OUT1 OUT1 voltage detection pin 5 RF1 Channel 1 Output current detection pin 6 NC No connection 7 VM Motor power supply pin 8 VREG2 Internal regulator capacitor connection pin for high side FET drive 9 NC No con

Features

  • H-bridge gate drivers o For bipolar stepper motor o Clockwise(CW) and Counter-clockwise(CCW) direction control o Built-in step vector, selectable number of step resolutions from 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 32, 36, 50, 64, 100 and 128 o Constant-current control o Synchronous rectification to reduce power dissipation.
  • Single clock input to advance the excitation step.
  • Low power 1μA(max) standby mode.
  • Separate power supplies for control logic (3.3-5V) and motor drivers (.

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Datasheet preview – LV8726TA

Datasheet Details

Part number LV8726TA
Manufacturer ON Semiconductor
File Size 1.26 MB
Description Stepper Motor Pre-Driver
Datasheet download datasheet LV8726TA Datasheet
Additional preview pages of the LV8726TA datasheet.

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Full PDF Text Transcription

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LV8726TA Stepper Motor Pre-Driver, PWM, Constant-Current Control, Micro step Overview The LV8726 is a bipolar stepper motor driver with ultra-small micro step drive capability. The device uses external dual H-bridges consisting of P and N channel MOSFETs. The operation voltage range is from 9V to 55V, and it is applicable to various industrial applications. Synchronous rectification control is implemented for all H-bridges to minimize power dissipation during a MOSFET switching. The device implements constant-current control using PWM. The step advance sequencer covers from half step to 1/128 micro step, and is driven by a clock input. The configuration registers can be programmed through an SPI serial interface.
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