LV8726TA: Stepper Motor Pre-Driver, PWM, Constant-Current Control, Micro step

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.To enhance energy efficiency further, the device can be put into a power saving standby mode.

Features

1 channel PWM constant-current control stepper motor pre driver of P-N channel MOSFET drive
1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 Stepand 1/3, 1/6, 1/12, 1/36, 1/5, 1/10, 1/20, 1/50, 1/100 Step are selectable.
Advance the excitation step with the only step signal input
8-bit 3-wire serial control
Low voltage protection circuit
Over-current protection circuit
Thermal shutdown circuit
With enable pin (ST pin)
BiCDMOS process IC
Input pull down resistance

Benefits

High efficiency drive
Variout step mode is selectable
Micro step drive is easily controllable
It is possible to reduce MCU port
Safety design
Safety design
Safety design
Low power consumption with standby mode

Applications

Industrial
Computing and Peripherals

End Products

Textile machine
Packing machine
Large printer
Engraving machine
Industrial instrument

Software (1)

Document Title	Document ID/Size	Revision	Revision Date
LV8726TAGEVK Software (Zip Format)	LV8726TAGEVK_SOFTWARE.zip (2744kB)	0

Package Drawings (1)

Document Title	Document ID/Size	Revision
QFP / 48 LEADS, TQFP EP 7x7x1 mm	932F-01 (63.7kB)	C

Evaluation Board Documents (4)

Document Title	Document ID/Size	Revision
LV8726TAGEVK Bill Of Materials ROHS Compliant	LV8726TAGEVK_BOM_ROHS.pdf (36kB)	1
LV8726TAGEVK Gerber Layout Files (Zip Format)	LV8726TAGEVK_GERBER.zip (306kB)	0
LV8726TAGEVK Schematic	LV8726TAGEVK_SCHEMATIC.pdf (196kB)	0
LV8726TAGEVK User Guide	LV8726TAGEVK_USER_GUIDE.pdf (2392kB)	0