LV8741V: PWM Current Control Stepper Motor Driver
The LV8741V is a 2-channel H-bridge driver IC that can switch a stepper motor driver, which is capable of micro-step drive and supports Quarter-step 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- On resistance (upper side : 0.5Ω ; lower side : 0.5Ω ; total of upper and lower : 1.0Ω ; Ta = 25°C, IO = 1.5A)
- Excitation mode can be set to Full-step, Half-step full torque, Half-step or Quarter-step
- Motor current selectable in four steps
- Output short-circuit protection circuit (selectable from latch-type or auto reset-type) incorporated
- Thermal shutdown circuit and power supply monitor circuit incorporated
- CLK-IN Input
- Single-channel PWM current control stepper motor driver (selectable with DC motor driver channel 2) incorporated.
- BiCDMOS process IC
- Excitation step proceeds only by step signal input
- IO max = 1.5A
- No control supply required VCC = 3.3V
- Unusual Condition Warning Output Pin
| Benefits- High Efficiency
- Various Step Adjustment Available
- Low Consumption
- Safety Design
- Thermal protection, Low voltage detection
- 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
- Slot Machine
- Vending Machine
- Cash Machine
|
Application Notes (1)
Package Drawings (2)
Data Sheets (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| LV8741VGEVB | Active | Pb-free | 2-Channel H-Bridge Driver IC Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LV8741V-MPB-E | Lifetime | Pb-free | SSOP-44K EP | 940AF | 3 | Fan-Fold | 30 | $1.6973 |
| LV8741V-TLM-E | Active | Pb-free | SSOP-44K EP | 940AF | 3 | Tape and Reel | 2000 | $1.273 |
| LV8741VB-MPB-E | Last Shipments | Pb-free | SSOP-36J EP | 940AH | 3 | Fan-Fold | 30 | |
Specifications
| Product | VM Min (V) | VM Max (V) | VCC Min (V) | VCC Max (V) | IO Max (A) | IO Peak Max (A) | Step Resolution | Control Type | Feedback Method | Current Sense | Regulator Output | Fault Detection | Flyback Protection | RDS(on) Typ (Ω) |
|---|
| LV8741V-TLM-E | 9.5 | 35 | 2.7 | 5.5 | 1.5 | 1.75 | ½ | Clock | | External Resistor | | Over-Current | | 1 |
