ALLEGRO MICROSYSTEMS A4985SETTR-T Motor Driver/Controller, Stepper, 3V to 5.5V supply, 35V/1A/2Outputs, QFN-32
Description
The A4985 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 ±1 A. The A4985 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.
The ET package meets customer requirements for no smoke no fire NSNF designs by adding no-connect pins between critical output, sense, and supply pins. So, in the case of a pin-to-adjacent-pin short, the device does not cause smoke or fire. Additionally, the device does not cause smoke or fire when any pin is shorted to ground or left open.
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
电源电压DC 3.00V min
输出接口数 2
输出电压 35 V
输出电流 1 A
工作温度Max 85 ℃
工作温度Min -20 ℃
电源电压 3V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 3 V
安装方式 Surface Mount
引脚数 32
封装 QFN-32
高度 0.9 mm
封装 QFN-32
工作温度 -20℃ ~ 150℃ TJ
产品生命周期 Active
包装方式 Tape & Reel TR
制造应用 通用
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/06/15
ECCN代码 EAR99