AMT49700 Description
The AMT49700 is a flexible microstepping stepper motor driver with integrated phase current control, a built-in translator, and simple motion control. It is a single chip solution designed to operate bipolar stepper motors in full, half, quarter, eighth and sixteenth step modes, at up to 28 V. The current regulator operates with fixed frequency PWM and uses adaptive mixed current decay to reduce audible motor noise...
AMT49700 Key Features
- Peak motor current up to 1.6 A at 28 V
- Low RDS(ON) outputs, 0.5 Ω source and sink typical
- Continuous operation at high ambient temperature
- 3.7 to 42 V supply operation
- Adaptive mixed current decay
- Synchronous rectification for low power dissipation
- Internal overvoltage and undervoltage lockout
- Hot warning and overtemperature shutdown
- Short-circuit, open-load diagnostics
- Programmable motion control