LV8740V: Stepper Motor Driver, PWM, Constant Current Control
The LV8740V 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 DC 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 : 0.3Ω ; lower side : 0.2Ω ; total of upper and lower : 0.5Ω ; Ta = 25°C, IO = 2.5A)
- Excitation mode can be set to Full-step, Half-step full torque, Half-step , or Quarter-step
- Motor holding current selectable in four steps
- Output short-circuit protection circuit (selectable from latch-type or auto reset-type) incorporated
- Built-in thermal shutdown circuit
- No control power supply required
- 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
- Unusual condition warning output pins
- Forward/Reverse/Brake/Stand-by Function
| Benefits- Good Thermal Performance, High efficiency
- Various Step Adjustment Available
- Low Consumption
- Safety design
- Thermal protection
- Easy Design
|
Applications- Computing & Peripherals
- Industrial
| End Products- Flatbed Scanner
- Inkjet Printer
- Multi-Function Printer
- Document Scanner
- Slot Machine
- Vending Machine
- Cash Machine
|
Application Notes (1)
Package Drawings (1)
Data Sheets (1)
Evaluation Board Documents (4)
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description |
|---|
| LV8740VGEVB | Active | Pb-free | 2-Channel H-Bridge Driver IC Evaluation Board |
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LV8740V-MPB-E | Lifetime | Pb-free | SSOP-44J EP | 940AG | 3 | Fan-Fold | 30 | $3.9586 |
| LV8740V-TLM-E | Active | Pb-free | SSOP-44J EP | 940AG | 3 | Tape and Reel | 2000 | $2.969 |
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) |
|---|
| LV8740V-TLM-E | 9 | 35 | 9 | 35 | 2.5 | 3 | 1 | Clock | | External Resistor | | Over-Current | | 0.5 |
