L9942
Features
- Two full bridges for max. 1.3 A load (RDSON = 500 m)
- Programmable current waveform with look-up table: 9 entries with 5 bit resolution
- Current regulation by integrated PWM controller and internal current sensing
- Programmable stepping mode: full, half, mini and microstepping
- Programmable slew rate for EMC and power dissipation optimization
- Programmable Fast-, Slow-, Mixed- and Auto Decay Mode
- Full-scale current programmable with 3 bit resolution
- Programmable stall detection
- Step clock input for reduced µController requirements
- Very low current consumption in standby mode IS < 3 µA, typ. Tj 85 °C
- All outputs short circuit protected with openload, overload current, temperature warning and thermal shutdown
- The PWM signal of the internal PWM controller is available as digital output.
- All parameters are guaranteed for 3 V < Vcc < 5.3 V and for 7 V < Vs < 20 V
Applications
Stepper motor driver for bipolar stepper motors in automotive applications like...
