LV8734V: Stepper Motor Driver, PWM, Constant Current Control

The LV8734V is a 2-channel H-bridge driver IC that can switch a stepper motor driver, which is capable of micro-step drive and supports 2W 1-2 phase excitation, and two channels of a brushed motor driver, which supports forward, reverse, brake, and standby of a motor. It is ideally suited for driving brushed DC motors and stepper motors used in office equipment and amusement applications.

Features

Low ON resistance (upper side: 0.48Ω ; lower side: 0.32Ω ; total of upper and lower: 0.8Ω , Ta = 25°C, IO=1.5A)
Output short-circuit protection circuit (selectable from latch type or auto-reset type) incorporated
Excitation : Full, Half, Quarter, 1/8 Step
Motor current Selectable in 4 Steps
OCP : Latch/Auto reset
CLK-IN Input
This device is a single channel PWM current control stepping motor driver (selectable with DC motor driver channel 2)
Excitation mode can be set to 2-phase, 1-2 phase, W1-2 phase, or 4W1-2 phase
Unusual condition warning output pins
No control power supply required

Benefits

High Efficiency
Short protection
Various Step Adjustment Available
Low Consumption
Safety Design
Easy Control for Micro-step Drive

Applications

Stepper/Brush DC Motors
Computing & Peripherals
Industrial

End Products

Printers
Flatbed Scanner
Inkjet Printer
Multi-Function Printer
Document Scanner
PoE Security Camera
Slot Machine
Vending Machine
Cash Machine

Package Drawings (1)

Document Title	Document ID/Size	Revision
SSOP44K (275mil) Exposed Pad	940AF (67.8kB)	A

Application Notes (1)

Document Title	Document ID/Size	Revision	Revision Date
LV8731V/32V/34V/35V/36V Application Note	ANDLV8731V_32V_34V_35V_36V/D (1465kB)	1	DEC, 2013

Evaluation Board Documents (4)

Document Title	Document ID/Size	Revision
LV8734VGEVB Bill of Materials ROHS Compliant	LV8734VGEVB_BOM_ROHS.PDF (66kB)	0
LV8734VGEVB Gerber Layout Files (Zip Format)	LV8734VGEVB_GERBER.ZIP (934.0kB)	0
LV8734VGEVB Schematic	LV8734VGEVB_SCHEMATIC.PDF (135kB)	0
LV8734VGEVB Test Procedure	LV8734VGEVB_TEST_PROCEDURE.PDF (200kB)	1

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Stepper Motor Driver, PWM, Constant Current Control	LV8734V/D (433.0kB)	1

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
LV8734VGEVB	Active	Pb-free	2-Channel H-Bridge Driver IC Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
LV8734V-MPB-H	Last Shipments	Pb-free Halide free	SSOP-44K EP	940AF	3	Fan-Fold	30
LV8734V-TLM-H	Active	Pb-free Halide free	SSOP-44K EP	940AF	3	Tape and Reel	2000	$0.85