LB1939T: Motor Driver, Constant Voltage/Current, H-Bridge, 2-Channel
The LB1939T is a bipolar stepping motor driver that features low voltage operation, a low saturation voltage and low power consumption. It operates full/half step drive. It supports constant voltage and constant current drive, can control two iris motors and is optimal for shutter, iris and AF drive in 3V battery operated still digital cameras and other battery operated equipment.
特性- Low voltage drive
- Low saturation voltage output
- Supports constant voltage and constant current drive
- Built-in reference voltage circuit
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应用- 3V Battery Operated Equipment
| 终端产品- Digital Still Cameras
- Digital Video Cameras
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应用注释 (1)
封装图纸 (1)
数据表 (1)
评估板文档 (4)
评估板与开发工具
| 产品 | 状况 | Compliance | 简短说明 |
|---|
| LB1939TGEVB | Active | Pb-free | EVABOARD FOR LB1939T |
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| LB1939T-MPB-E | Last Shipments | Pb-free | TSSOP-20 | 948AX | 3 | Fan-Fold | 70 | |
| LB1939T-TLM-E | Active | Pb-free | TSSOP-20 | 948AX | 3 | Tape and Reel | 2000 | $1.261 |
订购产品技术参数
| 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) |
|---|
| LB1939T-TLM-E | 1.6 | 10.5 | 1.9 | 10.5 | 0.4 | | ½ | Parallel | None | External Resistor | Yes | Thermal | Integrated Active | |
