LV8774Q: PWM Constant-Current Control Stepper Motor Driver
The LV8774Q is a 2-channel H-bridge driver IC, and can drive a stepper motor or two brushed DC motors. A stepper motor driver supports micro-step drive with 1/16-step resolution, and two brushed motor drivers support forward, reverse, brake, and standby functions. It is ideally suited for driving brushed DC motors and stepper motors used in office equipment and amusement applications.
应用功能框图
特性- Low on resistance(upper side : 0.3Ω, lower side : 0.25Ω, total of upper and lower : 0.55Ω ; Ta = 25°C, IO = 2A)
- Micro-step mode can be set to Full-step, Half-step, Quarter-step, or 1/16-step
- Excitation step proceeds only by step signal input withstepper motor
- Motor current selectable in four steps
- Output short-circuit protection circuit(selectable from latch-type or auto-reset-type)
- Unusual condition warning output pins
- Single-channel PWM current control stepper motor driver(or two DC motor driver)
- BiCDMOS process IC
- No control power supply required
| 优势- High Efficiency
- Various Step Adjustment Available
- Easy Control for Micro-step Drive
- Low Consumption
- Safty Design
- Safty Design
|
应用- Stepper/Brush DC Motors
Computing & Peripherals
Industrial
| 终端产品- Printers
Flatbed Scanner
Inkjet Printer
Multi-Function Printer
Document Scanner
PoE Security Camera
Slot Machine
Vending Machine
Cash Machine
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数据表 (1)
封装图纸 (1)
产品订购型号
| 产品 | 状况 | Compliance | 具体说明 | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| LV8774Q-AH | Active | Pb-free | PWM Constant-Current Control Stepper Motor Driver, PWM Constant-Current Control Stepper Motor Driver | QFN-44 / VQFN-44L | 485CL | 3 | Tape and Reel | 1000 | $1.554 |
订购产品技术参数
| Product | Type | 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) |
|---|
| LV8774Q-AH | Stepper/ Brush DC | 9 | 32 | | | 2 | 2.5 | 1
1/16
1/2
1/4 | Clock
Parallel | | External Resistor | | Over-Current
Thermal | | 0.55 |
