LV8726TA Datasheet, PDF (1/40 Pages) ON Semiconductor – Stepper Motor Pre-Driver

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.
To enhance energy efficiency further, the device can be put into a power saving
standby mode.
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 ( 9V –
55V)
 SPI 8-bit 3-wire serial interface for system configuration
 Input pins for standby and active mode
 Built-in system protection features such as:
o Under-voltage
o Over-current
o Over-temperature
Typical Applications
 Textile machines
 Packing machines
 Large printers
 Engraving machines
 Industrial products
www.onsemi.com
48-pin TQFP with exposed pad
7 mm x 7 mm
MARKING DIAGRAM
XXXXXXXXXX
XXXXXXXXXX
AWLYYWWG
1
XXXXX = Specific Device Code
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= Pb−Free Package
ORDERING INFORMATION
Ordering Code:
LV8726TA-NH
Package
TQFP48 EP
(Pb-Free / Halogen Free)
Shipping (Qty / packing)
1000 / Tape & Reel
† For information on tape and reel specifications, including part
orientation and tape sizes, please refer to our Tape and Reel
Packaging Specifications Brochure, BRD8011/D.
http://www.onsemi.com/pub_link/Collateral/BRD8011-D.PDF
© Semiconductor Components Industries, LLC, 2015
1
October 2015- Rev. 0
Publication Order Number:
LV8726TA/D