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 TitleDocument ID/SizeRevision
SSOP44K (275mil) Exposed Pad940AF (67.8kB)A
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
LV8731V/32V/34V/35V/36V Application NoteANDLV8731V_32V_34V_35V_36V/D (1465kB)1DEC, 2013
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
LV8734VGEVB Bill of Materials ROHS CompliantLV8734VGEVB_BOM_ROHS.PDF (66kB)0
LV8734VGEVB Gerber Layout Files (Zip Format)LV8734VGEVB_GERBER.ZIP (934.0kB)0
LV8734VGEVB SchematicLV8734VGEVB_SCHEMATIC.PDF (135kB)0
LV8734VGEVB Test ProcedureLV8734VGEVB_TEST_PROCEDURE.PDF (200kB)1
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Stepper Motor Driver, PWM, Constant Current ControlLV8734V/D (433.0kB)1
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
LV8734VGEVBActivePb-free2-Channel H-Bridge Driver IC Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LV8734V-MPB-HLast ShipmentsPb-free Halide freeSSOP-44K EP940AF3Fan-Fold30
LV8734V-TLM-HActivePb-free Halide freeSSOP-44K EP940AF3Tape and Reel2000$0.85
Specifications
ProductVM Min (V)VM Max (V)VCC Min (V)VCC Max (V)IO Max (A)IO Peak Max (A)Step ResolutionControl TypeFeedback MethodCurrent SenseRegulator OutputFault DetectionFlyback ProtectionRDS(on) Typ (Ω)
LV8734V-TLM-H9329321.51.751ClockExternal ResistorOver-Current0.8
Stepper Motor Driver, PWM, Constant Current Control (433.0kB) LV8734V
LV8731V/32V/34V/35V/36V Application Note LV8736V
LV8734VGEVB BOM ROHS LV8734VGEVB
LV8734VGEVB GERBER LV8734VGEVB
LV8734VGEVB SCHEMATIC LV8734VGEVB
LV8734VGEVB TEST PROCEDURE LV8734VGEVB
SSOP44K (275mil) Exposed Pad LA4425PV