集成电路/电机驱动芯片
Description
The A4984 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes. Step modes are selectable by MSx logic inputs. It has an output drive capacity of up to 35 V and ±2 A. The A4984 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.
Features and Benefits
▪ Low RDSON outputs
▪ Automatic current decay mode detection/selection
▪ Mixed and Slow current decay modes
▪ Synchronous rectification for low power dissipation
▪ Internal UVLO
▪ Crossover-current protection
▪ 3.3 and 5 V compatible logic supply
▪ Thin profile QFN and TSSOP packages
▪ Thermal shutdown circuitry
▪ Short-to-ground protection
▪ Shorted load protection
▪ Low current Sleep mode, < 10 μA
▪ No smoke no fire NSNF compliance ET package
型号 | 品牌 | 下载 |
---|---|---|
A4984SESTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4988SETTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4985SESTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4987SESTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4985SLPTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4987SLPTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4982SLPTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4984SLPTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4983SETTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4985SETTR-T | Allegro MicroSystems 急速微电子 | 下载 |
A4986SESTR-T | Allegro MicroSystems 急速微电子 | 下载 |